APM cover.P65 - Pesticide Action Network Asia and the Pacific
Transcription
APM cover.P65 - Pesticide Action Network Asia and the Pacific
OU USE A T HOME AT USE…. Miscarriages, Stillbirths k sabilities, Autism in Children and Diseases umour, Brain Cancer dren USING CONTROL SOL UTIONS SOLUTIONS AY F AND Y OUR F AMIL Y YOUR FAMIL AMILY DEBUG YOUR HOME THE NATURAL WAY NOW THA T THAT ork Asia and the Pacific (PAN AP) Penang, Malaysia 656 0381 PAN AP p.net w.panap.net Pesticide Action Network Asia and the Pacific 06/22/2006, 14:37 DEBUG YOUR HOME THE NATURAL WAY A quick, easy guide to safer pest control at home Pesticide Action Network Asia and the Pacific in collaboration with SOS (Save OurSelves) and Education and Research Association for Consumers AMP-1.P65 1 6/26/2006, 11:44 PM DEBUG YOUR HOME THE NATURAL WAY A quick, easy guide to safer pest control at home Copyright © Pesticide Action Network Asia and the Pacific. 2006. All rights reserved. Pesticide Action Network Asia and the Pacific (PAN AP) holds the right to this publication. The publication may be cited in part as long as PAN AP is properly acknowledged as the source and PAN AP is furnished with copies of the final work where the quotation or citation appears. Compiled and written by: G. Clare Westwood Editor-in-Chief: Sarojeni V. Rengam Editor: Jennifer Mourin Production Supervisor: Ma. Johanna Busto Quinto Layout Design: Red Leaf Designs Front Cover: Jennifer Mourin and Red Leaf Designs Illustrations: Matthew Chong Publisher: Pesticide Action Network Asia and the Pacific (PAN AP), Penang, Malaysia Printed by: Forda Printing Sdn. Bhd., Penang, Malaysia Westwood, G. Clare Debug your home the natural way: a quick, easy guide to safer pest control at home/(compiled and written by: G. Clare Westwood). ISBN: 983-9381-31-8 1. Pest control – Handbook, manuals, etc. 2. Household pests – Control Handbooks, manuals, etc. I. Title. 628.96 April 2006 AMP-1.P65 2 6/26/2006, 11:44 PM NOTICE The alternative pest control methods suggested in this book have been compiled based on surveys conducted in Malaysia as well as other references (most of which are cited in the References Section) so as to give a fairly comprehensive range of natural alternatives that people have reportedly tried with some success. Readers are advised to do their own research on the methods suggested in this book if in any doubt, test them on a small scale first and avoid using any material that they know or suspect they have an adverse (e.g., allergic) reaction to. This publication is intended to be a simple, modest and easy guide for the general consumer in Malaysia and in other parts of Asia as well. PAN AP does not claim it to be an exhaustive (or even near-exhaustive) reference in alternative pest control methods. No doubt there are many other effective natural solutions used by people all over the world. The tips given in this book are just a start. PAN AP Disclaimer The information contained in this book is for general educational purposes only. Pesticide Action Network Asia and the Pacific (PAN AP) does not give any warranty on the accuracy, completeness, functionality, effectiveness, usefulness, or other assurances as to the contents of this book. PAN AP, its directors, officers, employees and associates are not responsible and/or liable for any losses, damage to property, or personal injury suffered directly or indirectly from reliance on the information, in whole or in part or in conjunction, as contained in this book. All implementation and/ or usage, in whole or in part or in conjunction, of the alternative pest control methods contained herein by all person/s is/are solely at the person/s’ own risk. All opinions and comments expressed herein are made in good faith and in keeping with PAN AP’s vision and mission. iii AMP-1.P65 3 6/26/2006, 11:44 PM ACKNOWLEDGEMENTS PAN AP gratefully acknowledges the efforts and contribution of the following people/organisations: • Mr. Ong Boon Keong, Founder and Co-ordinator of SOS (Save OurSelves, a community-group in Penang devoted to addressing the housing issues of those displaced by the repeal of the Rent Control Act 1960) who conducted one of the groundwork surveys for this book for PAN AP; • ERA Consumer (Education and Research Association for Consumers), Kuala Lumpur, Malaysia, who conducted the other groundwork survey for this book; • the respondents of both the surveys mentioned above for their great co-operation and support; • Dr. Zairi Jaal, Co-ordinator of the Vector Control Research Unit, Universiti Sains Malaysia, for his help with some of the Malay translations; • Mr. Rudhrapathy Vijayavale for meticulously proofreading this book; • the Humanistisch Institute Voor Ontwikkelingssamenwerking (HIVOS, Netherlands), Evangelischer Entwicklungsdienst (EED, Germany), and Netherlands Organisation for International Development Cooperation (NOVIB, Netherlands) for their generous support to PAN AP; • and all those who have contributed in one way or another towards the creation of this book, especially those who shared their APM home-solutions or technical knowledge in relevant areas with us. iv AMP-1.P65 4 6/26/2006, 11:44 PM FOREWORD We have a dire situation where 25 million farm workers are being poisoned by pesticides every year. In October 1999, in Peru, 24 children died from pesticide poisoning. In Benin, seventy farmers died due to endosulfan poisoning. In China, 44,800 new cases of pesticide poisoning are reported every year, including 3,900 fatalities. Communities and consumers are exposed to pesticides through contamination of the soil, air and water. Worse, pesticides are seriously undermining the safety of our future generations as studies indicate their ability to cause disruption to our hormonal system leading to lowered fertility, feminisation of males and masculinisation of females. Some pesticides are suspected of adversely affecting our immune systems as well as causing cancer. These pesticides are widely and commonly used. Pesticides Sales Are Up! Pesticide companies continue to profit. There are now more pesticides used globally as Southern countries are on a hyper drive to industrialise, especially their agriculture. The industry’s promotion of herbicide-tolerant, geneticallyengineered crops has triggered an even higher use of herbicides. The agrochemical market was worth USD 35.4 billion in 2004. The top 10 agrochemical companies accounted for approximately 84 per cent (USD 29.566 billion) of the total market. The top six companies controlled 71 per cent of the pesticide market while the top two controlled over one-third. The poisoning of our bodies, our wombs and our children, and the pollution of our water, air, soil and food by pesticides is, however, totally unacceptable. With the information that we now have – of the toll that pesticides exert on our lives and the successful programmes in pesticide reduction and elimination through community integrated pest management and sustainable agriculture programmes – it is unconscionable that we continue to use pesticides. In the home, the use of pesticides continues unabated and our children and families are doused with hazardous pesticides daily. There are better ways to protect the health of our families. There v AMP-1.P65 5 6/26/2006, 11:45 PM are alternatives available, but they are not simple store-bought solutions to eradicate insects and other small animals from our homes. These solutions may take time and effort, but most of all they require a change of mindset to accept these insects and small animals that we consider “pests” as co-habitants on this earth. A better understanding of their biology and habits, especially their feeding habits, can help us to achieve effective pest control in our homes. This book attempts to compile useful information about less toxic solutions in pest control for homes. It shares some of the practices and wisdom of ordinary people, farmers and the older generation in controlling household pests without poisoning themselves and their homes needlessly. It has been a learning and sharing process to make this book available and we hope that this book will be the start of a systematic collation of alternative pest management practices, methods and wisdom of people from all over the world. Thus, I look forward to more sharing and encourage everyone who finds this book useful and who knows better, natural (non-pesticide) methods of pest control to share them with us so that these safer methods can become available to many others. I would like to thank Mr. Ong Boon Keong of Save OurSelves (SOS, Malaysia), and Ms. Indrani Thuraisingham and Ms. Chubashini Suntharalingam of Education and Research Association for Consumers (Malaysia), who collaborated and participated in this effort to document these alternative methods of safer pest control. It was definitely a team effort in PAN AP with everyone pitching in to help, but this book would not have seen the light of day without the tremendous work and dedication of Clare Westwood who finally moulded relevant documentation into a helpful book for consumers to use. Sarojeni V. Rengam Executive Director Pesticide Action Network Asia and the Pacific vi AMP-1.P65 6 6/26/2006, 11:45 PM TABLE OF CONTENTS Page Foreword v Welcome to the Toxic World – the Real Dangers of Pesticides 1 Pests in the Home 19 A. Pests in Living Areas of the Home B. Pests of Stored Food C. Pests on People and Domestic Animals 25 53 59 Pests in the Garden 73 References 89 Appendices Appendix A: Common natural pest repellants 97 Appendix B: Results of Mr Ong Boon Keong’s survey in Penang (2004) 104 Appendix C: Results of ERA’s survey in Selangor and Perak (2004) 108 Index of Pests AMP-1.P65 115 7 6/26/2006, 11:45 PM AMP-1.P65 8 6/26/2006, 11:45 PM Welcome to the Toxic World WELCOME TO THE TO XIC WORLD TOXIC ANGERS – THE REAL D DANGERS OF PESTICIDES 1 AMP-2.P65 1 6/26/2006, 11:53 PM AMP-2.P65 2 6/26/2006, 11:53 PM Welcome to the Toxic World WELCOME TO THE TOXIC WORLD - THE REAL DANGERS OF PESTICIDES W HILE MANY OF US HAVE HEARD OR READ THAT pesticides are hazardous to human health, we have, at best, a vague idea of the degree of such dangers and the extent of our vulnerability to these hazardous products in everyday life. Yet the undeniable fact is that such dangers are very real and far more prevalent than we realise. Pesticides are poisons. They are designed to kill pests. All pesticides are toxic. The myth that “pesticides are only harmful to the pests and not to me” is the most dangerous threat of all. Pesticides can kill any living thing and their free use should be a cause of great concern to all of us. The use of pesticides in controlling and eradicating pests has become so commonplace. We can buy many pesticides even in our local supermarkets and do not question their existence or safety. What many people fail to see, however, is that the use of pesticides is merely regulated and that there is no such thing as a “safe pesticide”. Let us remember that systems are imperfect and generally slow to react to research information. By the time governing authorities decide 3 AMP-2.P65 3 6/26/2006, 11:53 PM Debug Your Home the Natural Way to react and impose the necessary restrictions, thousands of people may have already been exposed to and harmed by the pesticides.1 Pesticides are poisons and can cause harm to human health and the environment. However, the use of pesticides is seen as necessary by governments in order to maintain current agricultural production levels in their countries. There is an underestimation of the impacts of pesticides on farmers and users because many governments of developing countries either do not have the human and financial resources to monitor the impacts or it is not a high priority. This lack of information or under-estimation of pesticide poisoning consequently results in no governmental action or inadequate efforts to prevent or reduce pesticide poisoning. Moreover, policy-makers and regulators often lack information and knowledge or are ignorant about alternative pest management approaches. These factors contribute to the current indiscriminate use and overuse of hazardous pesticides. Aside from this, it is pertinent to bear in mind that forces beyond governments, such as transnational corporations, industrialists, elites, and in some countries, even landlords, often have a powerful influence on critical decisions that impact the market, such as the use of chemicals in agriculture and consumer products. The pesticide trade is a multi-billion dollar business. Today many pesticides that have been banned or withdrawn in some countries continue to be sold in developing countries. Even when developing countries ban a 4 AMP-2.P65 4 6/26/2006, 11:53 PM Welcome to the Toxic World hazardous pesticide, the pesticide industry challenges the decision and lobbies politicians to continue their use. Some corporations even use unethical methods, for example, one pesticide transnational corporation, Monsanto, was found bribing Indonesian policy-makers to allow the planting of a controversial genetically engineered crop (of which concerns on the impact on human health and the environment have not been fully addressed) in Indonesia.* So it is not surprising that hazardous pesticides continue to be available because it is mostly about profits. How then can we ensure our safety and that of our children when it comes to pesticides? Firstly, let us not depend solely on governing bodies to tell us what is safe and what is not. It is time for us, ordinary consumers, to take full responsibility for our own safety and that of our families. This begins with getting the right information so we can make wise choices. While it is true that risks are part and parcel of life, it is important that we are adequately educated as to the true extent of such risks before making our decisions. With something as important as life and death, it is best to exercise the principle of precaution. *Reuters, 2005. See http://www.gmwatch.org/archive2.asp? arcid=4776. Also http://www.corpwatch.org/article.php? id=11787 5 AMP-2.P65 5 6/26/2006, 11:53 PM Debug Your Home the Natural Way A. BASIC INFORMATION ABOUT PESTICIDES ♦ Pesticides are toxic substances (poisons) intended to kill, control, or repel pests, but they can also be harmful to humans. They include insecticides (kill insects), herbicides (kill weeds), fungicides (kill fungus), rodenticides (kill rodents), molluscicides (kill molluscs e.g., snails) and even disinfectants (kill germs). ♦ Most pesticides are made from synthetic chemicals i.e., petrochemicals. A few occur naturally but this does not mean that they are non-toxic. Natural products like arsenic and nicotine are poisonous. For international listings of harmful pesticides, visit PAN UK’s website (www.pan-uk.org) for ‘The List of Lists’. ♦ Pesticides can be absorbed into your body through the skin and eyes and through breathing and swallowing. ♦ Several studies have indicated that human exposure to household pesticides is at levels higher than assumed safe, especially in children. For example, labels normally state or imply that it is safe to be in contact with treated lawns (grass) after the sprays have dried, yet there is scant scientific evidence to support this claim.2 ♦ Similarly, studies have shown that urban areas have higher levels of pesticides in the soil compared with 6 AMP-2.P65 6 6/26/2006, 11:53 PM Welcome to the Toxic World agricultural areas, and residues can stay around much longer inside the home than outside it. 2 ♦ Children are the most vulnerable to the impacts of chemicals in our environment. The exposure begins in the womb. Under similar conditions of exposure, children absorb more chemicals through the skin and through breathing compared with adults. There is also a higher incidence of children swallowing pesticides accidentally or through playing with treated pets, on a treated lawn or carpet, or in other contaminated areas around the home or in school. A study in Florida, USA, revealed the presence of pesticides throughout the home environment. 2 Studies have also linked household insecticides to elevated risks of childhood leukaemia. 3 ♦ Pesticide exposure at schools has produced acute illnesses among school employees and students. 4 A disease you are suffering from today could be a result of your great-grandmother’s exposure to an environmental toxin during her pregnancy. (http://www.wsunews.wsu.edu/detail.asp?StoryID=5261) 7 AMP-2.P65 7 6/26/2006, 11:53 PM Debug Your Home the Natural Way B. HEALTH EFFECTS OF PESTICIDES Health impacts from exposure to pesticides can be either short-term or long-term. The symptoms of pesticide poisoning can include any of the following: burning, itching, rashes, blisters, headaches, nausea, dizziness, anxiety, muscle twitching, restlessness, blurred vision, sweating, vomiting, difficulty in breathing, abdominal pain, diarrhoea, lethargy, numbness, permanent damage to the eye including blindness, fits and convulsions, coma and death.2 Pesticides can weaken the immune system and aggravate existing health problems. People with asthma and allergies, especially children, can react to very low levels of pesticides. Pesticides can also cause irregular heart rhythms and people with heart disease may have a worsening of their condition when exposed. Endocrine Disruptors, Carcinogens and Chronic Health Effects Of particular interest in recent years is the impact of pesticides on the endocrine system. The endocrine system is the body’s chemical ‘messenger system’ of hormones and other special messengers, which help communication between various parts of the body. Hormones stimulate and control many bodily functions such as reproduction, growth and development, behaviour, immunity and energy. 8 AMP-2.P65 8 6/26/2006, 11:53 PM Welcome to the Toxic World More than 80 pesticides are suspected of causing disruption to the endocrine system while over 160 are now listed as possible carcinogens (cancer-causing).5 Studies have implicated these pesticides to the possible onset of the diseases mentioned below including breast cancer. Chronic long-term effects identified in various studies conducted all over the world include the following effects: 2, 5, 6, 7, 8, 9 a. Cancer and tumours b. Damage to the brain and nervous system c. Damage to the organs of the body d. Reproductive effects – reduced fertility, low sperm count, sterility, spontaneous abortion, miscarriage, stillbirths, endometriosis, etc. Of particular concern is the impact of pesticides on the unborn child whose development is at very high risk. e. Recent studies indicate that pesticides may cause an increase in hyper-aggressive behaviour. In one case study in Mexico, heightened aggression in children exposed to heavy pesticide use was observed. 9 The bottom line is: the use of pesticides can lead to human death. Just because the health hazards are slow to manifest themselves, it does not make them less real. Pests will eventually leave our homes/buildings/ farms or die – after all, they have short life spans. But the effects of the pesticides used to destroy them may literally follow us and our children to the grave. 9 AMP-2.P65 9 6/26/2006, 11:53 PM Debug Your Home the Natural Way Household Pesticides Pyrethrins* and pyrethroids* are common components of household and garden pesticides including lice and flea shampoos. Common pyrethroids include prallethrin, allethrin, d-phenothrin, cylluthrin, and permethrin – active ingredients in many household aerosols, vapourising mats and mosquito coils. (Check the containers for names of the active ingredients ending with “….thrin”.) Carbamates, such as propoxur, are another common group of chemicals used in household pesticides – they are linked to incidence of cancer. Malathion, commonly used as a pesticide spray in the garden, belongs to the organophosphates group. Carbamates and organophosphates are among the most toxic pesticides known. All these substances are most easily ingested via inhalation and highly likely to precipitate or aggravate asthma as well as acute and/or allergic reactions like headaches, difficulty in breathing, allergic rhinitis (inflammation of the nasal mucous membranes), conjunctivitis, tremors, convulsions, swelling and dermatitis (skin itch, rash, etc.). *Pyrethrins are the active ingredients found in the flowers of certain species of the chrysanthemum plant that have a toxic effect on insects by attacking their nervous system. Natural pyrethrins are, however, quickly detoxified by enzymes in the insect. To delay this enzyme action, substances such as carbamates, organophosphates or synergists are added to the pyrethrins. Synthetic forms of pyrethrins are called pyrethroids. (http:// extoxnet.orst.edu/pips/pyrethri.htm) 10 AMP-2.P65 10 6/26/2006, 11:53 PM Welcome to the Toxic World Even the inert ingredients in household pesticides cause reactions such as chemical pneumonia, and damage to the liver, heart and kidneys. 2 (Inert ingredients are added to pesticide formulations to facilitate spreading, sticking or penetration of the pesticide.) The non-active ingredients in mosquito coils have been shown to release as much (carcinogenic) particulate matter as 75-137 cigarettes, depending on the brand.10 C. CHILDREN IN DANGER Children are the most susceptible to chemical poisoning. This susceptibility starts in the womb so pregnant women are in the “high risk” category too.11 The growing foetus is the most vulnerable target of endocrine disruption. During the foetal stage and early childhood, cells are rapidly dividing and the brain, organs and systems are being formed. At this time, the foetus/ child is particularly vulnerable to disruption – often, with permanent effects. Children’s skin area compared to their size is larger than in adults – this increases their area of exposure. The skins of babies and young children are also thinner, softer and contain more water, thus allowing chemicals to be absorbed more easily. Young children also tend to explore and may ingest pesticides accidentally. They are more exposed to contaminated areas such as treated carpets, lawns and floors. Household sprays and pesticides often rest on these surfaces and children’s toys. 11 AMP-2.P65 11 6/26/2006, 11:53 PM Debug Your Home the Natural Way Children have less mature livers and immune systems to protect them compared with adults. They also have a higher respiratory rate and therefore, breathe in more particles into the lungs. Household pesticides are not safe. Two studies found lower sperm count and motility (movement) in men living in semi-rural and agricultural areas compared with men living in more urban areas. This was linked to the use of agricultural pesticides. (http://www.ehponline.org/press: 22 Nov 2002 and 17June 2003) 12 AMP-2.P65 12 6/26/2006, 11:53 PM Welcome to the Toxic World Given below are some findings from case studies on the health impacts of pesticides on children. ♦ Harm to the Unborn Child 8 The growing foetus is susceptible even to low doses of pesticides and the effects are typically irreversible. Permanent damage can include: reduced growth; functional abnormalities; altered behaviour; reduced fertility; learning disabilities; lower intelligence; greater susceptibility to disease; and deformities. Genital deformities found in male animals (such as undescended testicles, cleft penis and malformed reproductive tracts) are sometimes referred to as the ‘feminisation’ (or ‘incomplete masculinisation’) of the male genitals. On the reverse, ‘masculinisation’ or ‘defeminisation’ has been found in female animals. The incidence of these deformities in animals is cause for concern because it indicates the possibility that these adverse reactions may occur in humans too. ♦ Leukaemia In studies conducted in the USA, Canada, Brazil, Europe, China, and Japan, it was found that children whose parent/s (either or both) were exposed to pesticides on the job were more likely to suffer from leukaemia than children whose parents had no such exposure. 8 The likelihood went up as high as eleven times in one study on children below five years of age. 2 One mosquito coil can release as much carcinogenic particulate matter as burning 75 to 137 cigarettes. (http://www.ehponline.org/press/mosquito.html) 13 AMP-2.P65 13 6/26/2006, 11:53 PM Debug Your Home the Natural Way Another study in Los Angeles, USA, showed that children who came from households using pesticides in the home once a week or more were four times more likely to have leukaemia. This went up to six times if their parents used garden pesticides once a month or more. 2 A positive link between household insecticides and childhood leukaemia was also made in a study in 2002.3 The most recent study by French doctors, published in the January 2006 issue of Occupational and Environmental Medicine, reports findings that children frequently exposed to household insecticides (including from before birth) used on plants, lawns and in head lice shampoos run twice the risk of developing childhood leukaemia. 12 Carbamates, found in plant treatments, lice shampoos and insect sprays, have been most commonly linked to the incidence of leukaemia cases. 12 ♦ Brain Cancer Studies in various parts of the USA, Canada, France and Norway found that children whose parents used pesticides in the home were three to seven times more likely to have brain cancer compared with children whose parents did not. 2,8 Children treated with lindane for head lice were about five times more at risk from contracting brain cancer. 2 ♦ Bone Cancer A study in the USA showed that children whose fathers were exposed to pesticides were six to nine times more at risk from bone cancer. 2 14 AMP-2.P65 14 6/26/2006, 11:53 PM Welcome to the Toxic World ♦ Wilm’s Tumour Wilm’s tumour is a common type of kidney cancer that usually affects children below the age of five. In Brazil, it was found that children of farm workers who often used pesticides were three times more probable of having Wilm’s tumour than children of non-farm workers with no such pesticide exposure. 2 ♦ Asthma, Decreased Mental Ability and Other Effects Pesticide exposure can result in asthma, decreased mental ability, attention deficit hyperactivity disorder (ADHD), multiple chemical sensitivity, chronic fatigue syndrome, altered behaviour, etc. 7,8 A study in Mexico found a marked decrease in motor, concentration and memory faculties of children exposed to heavy pesticides. 8 A study on 7- to 12-year old school children in Kuala Lumpur, Malaysia, showed that exposure to mosquito coils for at least three times a week was associated with asthma and persistent wheezing. 13 (Also see reference no.10 on the dangers of mosquito coils.) Eating organic plant-derived foods can reduce the effects of pesticides in children. (http://www.ehponline.org/docs/2003/5754/abstract.html) 15 AMP-2.P65 15 6/26/2006, 11:53 PM Debug Your Home the Natural Way D. OUR CHOICE What makes something (plant, animal or microorganism) a pest really depends on whether the damage it causes is tolerable to us or not. Thus, although it is understandable that we want to rid our homes of dirty, annoying and germ-transmitting pests completely and quickly, we should not lose our perspective. Our choices in dealing with pests should not cost us and those around us the greater good of long-term health and well-being. If we stop to think for a moment, pests are simply creatures trying to survive the best they can. Many of them have encroached into our living space due to urbanisation and the destruction of their natural habitats. Ironically, about 99 per cent of insects are actually beneficial or harmless. Spiders and lizards are good natural controllers of pests and bees give us nutritious honey, so why destroy them? It is possible to live peacefully with these creatures. Therefore, reasonable control rather than attempts at total annihilation (which is neither economically nor biologically feasible) is the key. There are non-toxic and least-toxic alternatives available to us that are much safer to people and the environment than using pesticides – these solutions may require some tolerance, patience and perseverance on our part but are well worth the effort. This publication presents some commonly used non-toxic pest control methods – gathered from surveys carried out in Malaysia as well as other natural methods 16 AMP-2.P65 16 6/26/2006, 11:53 PM Welcome to the Toxic World reportedly used by people in other parts of the world. These are ordinary people who have made the extraordinary but wise choice to avoid ‘quick fix’ toxic (pesticide) solutions. When we use pesticides, we create a toxic environment not only in our homes but also beyond them. Pesticides cling to air and dust particles and move freely about, endangering every living thing around. We destroy delicate eco-systems that preserve the balance of nature. A cleaner, safer, less toxic and healthier world is easily within our grasp. The choice is ours. s Please refer to the References cited in full at the back of this book. The numbers of the citations there correspond to the super-script reference numbers indicated in this chapter. 17 AMP-2.P65 17 6/26/2006, 11:53 PM AMP-2.P65 18 6/26/2006, 11:53 PM Pests in the Home PESTS IN THE HOME 19 AMP-2.P65 19 6/26/2006, 11:54 PM AMP-2.P65 20 6/26/2006, 11:54 PM Pests in the Home PESTS IN THE HOME Think “Non-Toxic” W HEN PESTS INVADE THE PRECIOUS DOMAIN OF OUR homes, we think “It’s war!” But before you call out the “chemicals of pest destruction” i.e., pesticides, think about if they are going to end up doing harm than good in the long run for you and your family. Most of the time, these so-called pests pose more a nuisance and inconvenience than a fatal danger to us. There are some basic, common sense and generic guidelines that have proven effective in keeping most home pests away. There is rarely a real need to resort to chemical pest solutions so don’t let them be an option for you as far as possible. Think “non-toxic” long-term. Be careful when hiring professionals to remove pests from your home as they tend to use strong chemicals. If you really need their help, get them to use non-toxic or least-toxic methods, even if it takes a little longer to solve the problem. Prevention is the best solution. It is harder to remove pests once they have entered and infested your home. Pest populations can be controlled by denying the pests access to your home and removing their basic survival requirements, such as air, food, moisture and shelter. If you can learn to pest-proof your homes with a few simple measures, this will go a long way towards keeping your home free of pests. And even if they do enter your 21 AMP-2.P65 21 6/26/2006, 11:54 PM Debug Your Home the Natural Way home, do not panic and resort to dangerous solutions. The situation can easily be controlled with a little patience and perseverance. Cleanliness As most common pests in homes – especially ants, flies, cockroaches and rats – are attracted to foodstuff, good sanitation and hygiene is very important. Clean the house of scraps, food crumbs, etc. everyday. Keep cooked food in cupboards or covered, and store dry food in well-sealed containers. Garbage bins should have tight-fitting lids/covers. Garbage should be removed every night as many household pests are active at night. Covering each new layer of waste with clean sand will discourage flies and other pests attracted by the smell. Weekly thorough (water) vacuuming is very effective against a variety of pests such as ticks and mites. Wash small carpets, rugs, beddings, blankets, etc. regularly in hot soapy water or dry them in a hot dryer or under strong sun to kill pests. Prevent Entry Cover drain openings with wire mesh and install wirenetted screens for doors, windows and vents to stop pests from entering your home. Fill holes around the house and in the garden. Sealing gaps under doors with a permanent metal structure is best. Alternatively, place a wooden bar or a long, thick cloth under the doors when you close them. 22 AMP-2.P65 22 6/26/2006, 11:54 PM Pests in the Home Discourage Nesting Most pests like to hide in moist, warm, dark areas. Keep every area of the home clean, dry, bright and well-aired. Reflective surfaces like mirrors are helpful in this aspect. Avoid upholstered furniture especially if your family members are sensitive to allergens – such furniture normally houses pests such as mites and bugs which feed on organic matter from spills, sweat, etc. trapped in the upholstery. Choose bright/light colours for walls and curtains. Seal or caulk* holes, crevices, and cracks in walls, floors and furniture, and openings around pipes – use mortar or silicon. Fill holes in and around the house and garden. In particular, clean storage areas regularly. Clear the surrounding areas of empty containers that retain water. These steps will minimise pest nesting and breeding areas in and around your home. caulking gun *To seal openings such as cracks and crevices with a substance such as latex or silicone. Use a caulking gun. 23 AMP-2.P65 23 6/26/2006, 11:54 PM Debug Your Home the Natural Way 24 AMP-2.P65 24 6/26/2006, 11:54 PM Pests in the Home A. PESTS IN THE LIVING AREAS OF THE HOME 25 AMP-2.P65 25 6/26/2006, 11:54 PM AMP-2.P65 26 6/26/2006, 11:54 PM Pests in the Home ANTS Name in Malay: semut ant Description Small, brown/black/red insects with constricted ‘waists’. Commonly wingless. Like to eat sweets, starches, fats, dead insects and other animal matter, and food in homes. Ants in the home eat fleas and certain termites and recycle organic matter. Like to build nests in trees, soil, buildings, and sometimes, decaying timber. Fire ants like gardens and turf/grass. Although they like to nest in wood, they do not actually eat or damage wood. Control 1. Prevent ant access to food. Place legs of tables in small jars or saucers of oil or water and detergent. Change the water every few days. 2. Sweet food e.g., a tin of sweetened milk can be placed in a container with a little water 27 AMP-2.P65 27 6/26/2006, 11:54 PM Debug Your Home the Natural Way to prevent ants from getting to it. Store such food in the refrigerator when not in use. 3. Putting a few dried cloves (cengkih in Malay) in your sugar will keep the ants away from it. 4. Wipe the paths that ants travel into your home with soapy water or a 50-50 mixture of vinegar and water to deter them from returning. Rubbing a bar of soap or chalk over ant trails will have a similar effect. 5. Mopping with a bucket of water mixed with a handful of salt will also deter ants. 6. Flood ant nests/mounds with hot boiling water mixed with a little detergent every few days until the nests are destroyed. 7. If you have two (or more) fire ant mounds in your garden, shovel some earth from one mound and put it on the second mound, and vice versa. The ants will destroy each other’s colonies. 8. There are certain ants and termites that tend to fly around bright lights just before heavy rain. Put a basin of water on the floor below the light/ lamp. The insects will be attracted to the reflection of the light in the water, fly down towards it and drown in the basin. An ant can lift 20 times its body weight. 28 AMP-2.P65 28 6/26/2006, 11:54 PM Pests in the Home BED BUGS Name in Malay: pepijat, pijat-pijat bed bug Description Flat, wingless, reddish-brown insects. Feed on human and animal blood, usually at night. Bites cause irritation, itchiness and inflammation to the skin. Give off a characteristic pungent odour. Usually found in floor cracks, mattresses, and upholstered furniture. Leave behind black faeces. Move from room to room through plumbing, electrical conduits or cracks in walls – can also be transferred from one room/house to another via clothing, bedding, bed sheets, luggage, etc. Control The best control is prevention. Once bed bugs have infested an occupied house, it is hard to totally eliminate them. However, it is worth trying these techniques: 1. If possible, get rid of infested bedding and furniture permanently. 2. Ensure no part of the bed touches the wall. 29 AMP-2.P65 29 6/26/2006, 11:54 PM Debug Your Home the Natural Way 3. For emergency measures, place bed legs in smooth, clean glass or metal jars filled with soapy water or put petroleum jelly on the legs to prevent the bed bugs from climbing up at night. 4. Put mattresses, pillows, bedding and infected areas out under strong sun for seven to eight hours. Bed bugs are very sensitive to heat. Although the thermal death point is 44-45 degrees Celsius, most die at 36-37 degrees (Olkowski, 1991). 5. Steam clean or dry clean bed sheets, blankets, and other materials infested by the bugs. Steam clean bedroom furnishings too. 6. Adult bed bugs also die with prolonged exposure to cold – several hours at 0-9 degrees Celsius (Olkowski, 1991). The eggs, however, take up to two months to die. 7. Remove the bugs by hand or vacuuming. Fancy ants in your bed? In the USA, pharaoh ants and Argentine ants have been found to wipe out entire bed bug infestations (Olkowski, 1991). 30 AMP-2.P65 30 6/26/2006, 11:54 PM Pests in the Home BOOKLICE, FIREBRATS AND SILVERFISH booklouse firebrat silverfish Description of booklice Small, greyish, soft-bodied insects less than 2mm long. Feed on mould, fungi, paper, starch (as found in book bindings), and grain. Found in books, cardboard boxes, loose wallpaper, and moist areas such as the mulch* of potted plants, bases of trees and stone walls, and under logs. * Mulches are materials used to cover the surface of the soil such as leaves, grass clippings, sawdust, bark chips, straw, compost or even synthetic materials like black plastic. They keep the soil from getting too hot or hard, and prevent weeds from growing as well as erosion and loss of moisture. Natural mulches add organic nutrients to the soil. 31 AMP-2.P65 31 6/26/2006, 11:54 PM Debug Your Home the Natural Way Description of firebrats and silverfish (gegat in Malay) These two are closely related. Long, flat, wingless insects. Firebrats have a mottled black-and-white colour and like warm, dry areas. Found around ovens, bakeries, and book and paper storage areas. Silverfish are greyishgreen and prefer damp areas such as around water pipes, mulch around the house, crawl spaces under the house and in newly-built houses where the masonry has not dried. Both eat mould and food high in protein and starch such as starch bindings in books, moist wheat flour and cereals. neem leaves 32 AMP-2.P65 32 6/26/2006, 11:54 PM Pests in the Home Control 1. Keep the house dry. 2. Air and sun damp areas to dry them up. 3. Clean and seal cracks and crevices. 4. Heat or freeze infested materials to dry them out and kill the insects. Try using a hair dryer for infested bookshelves. 5. Use a household cleaning agent to remove and keep away mould. 6. Putting a few sachets of neem (mambu in Malay) leaves in bookshelves may help repel these pests. 33 AMP-2.P65 33 6/26/2006, 11:54 PM Debug Your Home the Natural Way CARPET BEETLES Name in Malay: kumbang permaidani carpet beetle Description Most are black /dark brown but a few species have white/yellow/orange scales also. Larvae are hairy. Adults can fly. Eat wool, fabrics, hair, fur, feathers, leather, dead mice/insects, dried blood, grain, cereals, powdered milk, pet food, potato chips, noodles, books, pollen, etc. – they especially like animal matter. Live in carpets, rugs, blankets, nests, furniture, stored clothing, bags of dried food, balls of fur/hair, cupboards, etc. Also found on cut flowers. Can eat through cardboard and wood. Not averse to sunlight – may be seen crawling on windows. Can cause dermatitis, sinusitis and provoke allergic reactions. Control 1. Make sure garments are cleaned and well sunned before storing in sealed plastic bags. 2. Sun infested clothing in strong sunlight for 48 hours. 34 AMP-2.P65 34 6/26/2006, 11:54 PM Pests in the Home 3. Dried food should be stored in tight-fitting glass containers. 4. Avoid furnishings that contain substances of animal origin. 5. Clean and seal or caulk crevices and cracks. 6. Avoid accumulations of dust, fur, hair and lint in the house. Vacuum regularly and thoroughly, and change/clean vacuum bags often. Water vacuum cleaners are better than dry ones. 7. Wash and sun carpets/rugs/etc. regularly. 8. Dry clean infested carpets and rugs to kill the beetles. 9. Remove any nests found in walls or near to the house. 10. Trap rather than poison rats and mice – the decaying carcasses will attract carpet beetles and other pests. 35 AMP-2.P65 35 6/26/2006, 11:54 PM Debug Your Home the Natural Way COCKROACHES Name in Malay: lipas cockroach Description Oval, flattened brownish insects that hide in warm, dark places – crevices, cupboards, drawers, etc. – in the daytime. Active at night. Potential carriers of dysentery, typhoid, hepatitis, and the Salmonella bacteria which causes food poisoning. Eat foodstuff, paper, clothing, books, etc. Natural predators of cockroaches include ants, spiders, rats, dragonflies, geckos and scorpions. Control 1. Neem leaves and seeds are natural repellants. So are the water extracts of the marigold (bunga marigold in Malay) plant and breadfruit (buah sukun in Malay) leaves. 2. Make a cockroach trap. Half-fill a bottle with a sweet drink and add a tablespoon of oil. Cockroaches climbing into the bottle will drown as the oil will prevent them from climbing out. 36 AMP-2.P65 36 6/26/2006, 11:54 PM Pests in the Home Similar traps containing two inches of beer, or a mixture of molasses and water (10:1) can also be used. 3. Sticky paper (flypaper) can be placed in strategic areas to trap cockroaches. 4. Keep areas underneath sinks, cabinets, cupboards, refrigerators, and stoves, and dark areas in storerooms, showers, drains, toilets, wall cracks, and crevices, dry and well aired. marigold breadfruit A cockroach can live up to a month without food – as long as there’s water or moisture. 37 AMP-2.P65 37 6/26/2006, 11:54 PM Debug Your Home the Natural Way HOUSE FLIES Name in Malay: lalat house fly Description Females lay eggs in manure/faeces, decaying plant and animal matter, garbage, and meat. Carry germs to food transmitting over 60 diseases including typhoid, dysentery and hepatitis. Like heat and light. “Lesser/ little house flies”, unlike common house flies, seldom alight on people or their food. However, they tend to fly around people’s eyes, noses and ears. Control 1. Install netted screens for doors and windows to keep flies out. 2. Keep the area around and in the house free of animal dung, decaying matter or garbage. 3. Use a flyswatter. 4. Hang ribbon flypaper or any paper soaked in oil to trap flies. 38 AMP-2.P65 38 6/26/2006, 11:54 PM Pests in the Home 5. Lighted candles keep flies away. 6. Make a paste of chrysanthemum (bunga kekwa in Malay) leaves to kill maggots. 7. Rubber seed kernel oil, peel oil of citrus fruits (buah limau in Malay), neem seeds (burn them), neem seed oil, and garlic (bawang putih in Malay) oil are natural repellants for flies. Powdered custard apple (buah nona in Malay) seeds act as a contact poison for flies. (See Appendix A for recipes for neem, citrus peel and garlic oils.) 8. Soak turnip (sengkuang in Malay) roots in water overnight in a closed container. Then filter and add an equal amount of water. Spray in flyinfested areas. 9. Use fly traps – there are electric and nonelectric versions available. Houseflies taste with their feet. 39 AMP-2.P65 39 6/26/2006, 11:54 PM Debug Your Home the Natural Way chrysanthemum leaf custard apple garlic 40 AMP-2.P65 40 6/26/2006, 11:54 PM Pests in the Home MOSQUITOES Name in Malay: nyamuk mosquito Description Only female mosquitoes suck blood. Their bites may cause swelling and itching. The Anopheles mosquito carries the malaria disease and the Aedes mosquito transmits dengue fever. Anopheles mosquitoes lay their eggs on the surface of stagnant or slow-moving water, or on rafts on moist soil. The females generally feed at dawn and dusk. Aedes mosquitoes lay their eggs in relatively clean water above or near to the water line, or along the edge of the water surface. They have been known to bite at any time inside as well as outside buildings, but especially in the early morning and early evening. In the home, mosquitoes like cool, dark places. Control 1. Mosquito nets and screens over doors and windows are effective controls. Mosquitoes are attracted to heat, movement and certain body odours like that of ‘old’ sweat and carbon dioxide. A mosquito can smell you from a kilometre away. 41 AMP-2.P65 41 6/26/2006, 11:54 PM Debug Your Home the Natural Way 2. Air-conditioning is a deterrent because the room is sealed and the temperature is low. 3. Wear long-sleeved shirts/blouses and long trousers if you expect to be outdoors in the evening. Wear bright coloured rather than dark clothing. 4. Yellow lights at entrances deter mosquitoes from entering the home. 5. Use fans to blow mosquitoes away. 6. Burn neem seeds or neem seed oil to drive mosquitoes away. Neem oil can also be added to bath soaps for use. 7. Clear the home area of old stagnant water in containers, gutters, etc. Pour a little oil (e.g., cooking oil) on water surfaces of ponds and drains and even very small catchment areas (e.g., little depressions in the ground) where mosquitoes might breed. 8. To kill mosquito larvae, use oil, garlic spray, extract of marigold flowers or neem kernel extract. (The extracts can be diluted with water: average 250 parts per million.) Garlic oil is a particularly effective mosquito larvicide (kills larvae). Mosquitoes are attracted to people with a high amount of cholesterol under their skin. 42 AMP-2.P65 42 6/26/2006, 11:54 PM Pests in the Home 9. Citronella winterianus (maha pengiri or serai wangi in Malay) oil is a good natural repellant against mosquitoes. Apply it to the skin every few hours. You may dilute the oil with a little olive oil for wider application. You can also scent your clothing with it. Candles made with citronella oil can also be burned to release the fragrance. 10. Plant lemon grass citronella (serai in Malay) around the house. 11. Tie up a few citronella leaves and place them in cupboards, shelves and even in your car to act as a repellant. They also give off a pleasant aroma. 12. The smoke from burning citrus peels (kulit buah limau in Malay) or incense will help drive away mosquitoes. The smell is also pleasant. Best to do so around dusk and dawn when certain types of mosquitoes are most active. However, burn these substances for just a little while and not over a prolonged period. 13. Encourage the presence of dragonflies, toads, frogs, and birds, which eat mosquitoes and their larvae. Rear goldfish or mosquito fish. Mosquitoes like people who eat bananas. 43 AMP-2.P65 43 6/26/2006, 11:54 PM Debug Your Home the Natural Way citronella winterianus lemon grass citronella 44 AMP-2.P65 44 6/26/2006, 11:54 PM Pests in the Home RATS AND MICE Name in Malay: tikus (mice are also sometimes called tikus padi) rat mouse Description Rodents include animals like rats, mice, rabbits and beavers. Commonly cause damage to property and crops. Highly productive and widespread. There are different types of rats and mice. Carry diseases like the plague. Small, black, curled droppings indicate their presence. Can jump and climb. Eat any foodstuff as well as paper, soap, etc. Like to live in enclosed spaces, holes, trash piles, in between walls, etc. Can gnaw through wood, aluminum, plastic, and soft mortar. Active at night. Control 1. Rat-proof your home. Keep doors closed or have screen doors with metal mesh/netting to prevent rodent entry. Install metal wire mesh 45 AMP-2.P65 45 6/26/2006, 11:54 PM Debug Your Home the Natural Way screens for vents and windows too, as well as metal channels on the lower edges of wooden doors. Ensure there are no gaps below the door that rats can squeeze through. 2. Seal small openings the rodents might use to get in e.g., drain openings (use wire mesh), and around pipes and wires. 3. Check the ceiling and roofing – seal openings that rats might use to get in and out. 4. Put fresh or dried mint (pudina in Malay) leaves in closets and cupboards to repel rats. 5. Moisten small balls of cotton wool with clove oil and leave them around in cabinets or places rats are likely to frequent. mint leaves 46 AMP-2.P65 46 6/26/2006, 11:54 PM Pests in the Home 6. Use rat cage-traps. Mice like sweet food like jam, peanut butter, chocolate, candies and cake. Rats prefer meat or fish. Change the bait everyday. Camouflage the trap by covering it with flour or sawdust. Traps must be placed in the normal paths of the rodents. If you don’t know where these are, sprinkle some flour or talcum powder on the floor in likely places and check for footprints the next day. Rats and mice like to run close to the wall. Use obstacles like boxes to force the rodent into the trap. After traps have been used a few times, rub them with aniseed oil (minyak jintan manis in Malay) to disguise their odour. A more innovative version of the cage-trap can trap a few rats at a time without the need for bait. (Rat traps are generally available from local hardware stores.) 7. Non-toxic glue traps can also be used to catch rats and mice. Spread the glue over a piece of cardboard and put some food bait in the middle. The rodent will get stuck trying to reach the bait and will not be able to free itself. This method is more effective for small rats or mice – big rats may be strong enough to pull the whole cardboard with them as they try to run away. 8. Rear a cat to catch the rats and mice. Rats have an in-built defence against toxins. They take a tiny taste of any new substance (e.g., poison) and if it makes them sick, they avoid it in future. 47 AMP-2.P65 47 6/26/2006, 11:54 PM Debug Your Home the Natural Way SNAKES Name in Malay:ular cobra Description Snakes like the cobra have deadly venom and may enter the home from nearby foliage. Although not all snakes are poisonous, it is best to keep them away from the house. Like to rest and nest in cool, dark places. Prey on chickens, rats, etc. Control 1. Preventing entry into the home area is crucial. Seal all openings and holes in the ground. 2. Sprinkle sulphur (sulfur) around the house. Reapply after rain. 3. Rear dogs, peacocks (merak in Malay) or geese (angsa in Malay). 48 AMP-2.P65 48 6/26/2006, 11:54 PM Pests in the Home TERMITES Name in Malay: anai-anai soldier termite worker termite Description Live in colonies. Feed on cellulose contained in wood and paper. Also attack growing trees. Like humid conditions. There are basically two types of termites – those that live in wood (e.g., drywood termites) and those that live in the soil (subterranean termites). The former leaves behind droppings in the form of coarse sand-like pellets. Subterranean termites live underground and tunnel through soil to feed on wood elsewhere. Have huge colonies. Can bore into floorboards, mouldings and house structures, and even be found several storeys high. Termite ‘mud tubes’ on walls clearly indicate their presence. At certain times, a percentage of the termites Some termite species build earthen mounds 8-10 metres high. Many of these species do not eat wood, but leaves, grass, humus and the dung of herbivorous animals instead. 49 AMP-2.P65 49 6/26/2006, 11:54 PM Debug Your Home the Natural Way in a colony develops wings, changes colour, and flies off to form new colonies. These ‘swarmers’ also indicate termite infestation. Termites serve an ecological function in nature: breaking down the large numbers of fallen and dead trees and returning them to the soil. Control 1. Minimise moisture beneath and around buildings. Keep wood structures dry. 2. Get rid of decaying tree stumps, roots and wood debris near the house. Never bury wood pieces in your garden. 3. Do not stack wood or newspapers against the foundation of the house. 4. Plant trees away from the house. Roots, branches and stumps provide avenues for termites, ants and beetles to infest your house. 5. Dig out the colonies and make sure to remove any pieces of wood and termite tubes. 6. Some types of ants e.g., Argentine ants, prey on termites. Pour some honey on broken termite tubes to attract the ants or place some ants where the termites are. 7. Eliminate direct contact between wood and soil by leaving a gap of at least 20 cm or filling the gap with concrete. 50 AMP-2.P65 50 6/26/2006, 11:54 PM Pests in the Home 8. Keep exterior walls well-painted. 9. Anti-termite action is best taken before a house is constructed. 9.1 An anti-termite stainless steel mesh can be planted in the ground before a house is built. 9.2 Burmese teak is said to be very effective against termites because of the phyto-chemicals it contains which are apparently fatal to termites. 10. Regularly monitor the home and the area around it for new infestations. Research in the USA has shown that termites cannot pass through a layer of dry or damp sand consisting of particles of 10-16 mesh size. Building sand barriers under and beside the foundations of a house will help prevent termite entry. (Olkowski, 1991) 51 AMP-2.P65 51 6/26/2006, 11:54 PM AMP-2.P65 52 6/26/2006, 11:54 PM Pests in the Home B. PESTS OF STORED FOOD 53 AMP-2.P65 53 6/26/2006, 11:54 PM AMP-2.P65 54 6/26/2006, 11:54 PM Pests in the Home PESTS OF STORED FOOD cigarette beetle sawtoothed grain beetle rice weevil (Name in Malay: kumbang beras) confused flour beetle Indian meal moth 55 AMP-2.P65 55 6/26/2006, 11:54 PM Debug Your Home the Natural Way Description There are several types of beetles, weevils and moths that attack stored food; flour, grain, bread, cereals, crackers, beans, dried fruit, etc., as well as cloth, books and leather. Control 1. Inspect all food packages before purchase or when they are first brought home. Most beetles are already in the package. Do not consume any infested food no matter how small the infestation is. 2. Store dried food in small quantities to maintain short turnover times. 3. Ensure stored grains are as dry as possible before storing – heat grain in the oven at 82 degrees Celsius for two hours, stirring occasionally, or dry them out under strong sun for a few hours. 4. Mix grain with neem oil thoroughly. The oil will protect the grain from weevils and beetles for up to six months. Wash off the oil with hot water before using the grain. (Use 30-50 ml of neem oil – about a teacup – for a 90 g bag of grain.) 5. Store dried food in tightly sealed glass, plastic or metal containers. Storing the food in the refrigerator helps them last longer and keeps them away from pests. 56 AMP-2.P65 56 6/26/2006, 11:54 PM Pests in the Home 6. Clean up spilled food immediately. 7. Dried chillies (cabai in Malay) and dried calamus (jerangau in Malay) will help protect stored food and nuts from beetles and weevils. 8. Make anti-weevil sachets. Place garlic bulbs on a greased tray and bake in a low oven for about an hour. Crush bay leaves (available in supermarkets under the dried herbs section) and wrap these up with the garlic in a thin muslin cloth. Tie up and store with the food. 9. Place a small paper bag with lightly ovendried chopped garlic, dried chillies, or bay or neem leaves in the storage containers to repel food moths. 10. Make food moth traps. Fry a spoonful of breadcrumbs in a cupful of oil until they turn dark and place the mixture in an open jar in the stored food area. The odour will attract the food moths which will then drown in the oil. 11. Clear and clean infested cupboards with soap and water. Air cupboard overnight and treat with neem seed kernel extract before reuse. 57 AMP-2.P65 57 6/26/2006, 11:54 PM Debug Your Home the Natural Way chilli calamus 58 AMP-2.P65 58 6/26/2006, 11:54 PM Pests in the Home C. PESTS ON PEOPLE AND DOMESTIC ANIMALS 59 AMP-2.P65 59 6/26/2006, 11:54 PM AMP-2.P65 60 6/26/2006, 11:54 PM Pests in the Home FLEAS Name in Malay: fli, pinjal cat flea Description Cat fleas attack cats and dogs as well as humans. (The dog flea and human flea are less common.) Tiny, brownish to blackish, blood-sucking insects. Eggs are small, whitish and hardly visible to the naked eye. The larvae avoid bright light and feed on organic matter. They need moisture and live in humid parts of buildings, for example, in crevices or carpets. Can carry bacteria causing diseases like the bubonic plague. Often cause serious allergies including itching and skin lesions and can cause an animal to lose hair. Control 1. Fleas like to live in carpets so remove all carpeting or have them dry/steam cleaned. 2. Keeping pets outside the house will help prevent fleas from infesting human-occupied areas. 61 AMP-2.P65 61 6/26/2006, 11:55 PM Debug Your Home the Natural Way 3. Wash pet bedding in hot soapy water every few weeks. Clean pet resting areas with soapy water. 4. Combing with a flea comb is effective in getting rid of adult fleas. Flick the comb after each comb into a container of soapy water which will drown the fleas. 5. Bathe your pet with soap and water. Use a flea soap made from fatty acids derived from vegetable oil. 6. Boil citrus peels in a pot of water. Cool the solution before pouring over your dog after a bath. Rub it into the coat. It will kill fleas and keep them away as well as make your dog smell nice! However, do not use citrus peel baths or oils on cats as they are very sensitive to them. 7. Vacuum carpets, upholstered furniture, floors, cracks and crevices thoroughly on a frequent and regular basis. Water vacuum cleaners are better, but if you use dry vacuum cleaners, freeze or sun the bag to kill the fleas or burn the bag. Fleas die at 39 degrees Celsius after one hour (Olkowski, 1991). 8. Flood or dry out organic matter beside the house which may harbour fleas. Fleas can jump 20 cm (eight inches) high. This means that if a flea were the size of a man, it would be able to jump over a skyscraper. 62 AMP-2.P65 62 6/26/2006, 11:55 PM Pests in the Home HOUSE DUST MITES Name in Malay: hama debu/ habuk rumah house dust mite Description There are several types of mites that may attack people. Many are carried by animals into homes. About 140 mite species have been found in house dust. Many of these live off fungi in/on furniture. House dust mites are known to cause allergic reactions such as asthma, rhinitis and dermatitis. Control 1. Choose appropriate furniture that is easy to clean. Avoid furnishings that are made of softwood (e.g., pine), textiles or fibres. Remove cloth furnishings and wall to wall carpeting. 2. Use curtains and rugs that can be washed repeatedly and blinds that can be vacuumed. 3. Replace feather pillows with synthetic fibre ones. 63 AMP-2.P65 63 6/26/2006, 11:55 PM Debug Your Home the Natural Way 4. Encase mattresses in plastic covers (it will prevent mites and mite faeces from passing through). 5. It is best to avoid rearing furry or feathered pets. If you have such pets, however, locate their sleeping areas far from yours. Note also that aquariums in the house increase moisture which mites thrive on. Dogs, cats and other animals produce dander, which can be converted into allergens by house dust mites. 6. Reduce allergen-producing raw matter such as the bodies or faeces of house insects by controlling their presence and numbers. 7. Vacuuming, preferably wet vacuuming, is highly effective in removing the mites. Sweeping may only redistribute house dust into areas harder to clean. Thorough vacuuming (e.g., 20 minutes for a mattress) once a week is better than light vacuuming daily. Dust furniture before vacuuming. Use special dust cloths to hold the dust you wipe up. 8. Shampoo, dry/steam clean, or beat large non-washable carpets at least once a year. Hot wash or dry/steam clean blankets frequently. 9. Wash bed sheets in hot soapy water at 60 degrees Celsius every one to two weeks. 64 AMP-2.P65 64 6/26/2006, 11:55 PM Pests in the Home 10. Keep the humidity of the house to below 70% if possible. Use dehumidifiers in bedrooms. Fans improve ventilation when cooking and washing. 11. Be aware of air infiltration carrying in pollen which house dust mites love to feed on. A typical bed can house up to two million house dust mites. 65 AMP-2.P65 65 6/26/2006, 11:55 PM Debug Your Home the Natural Way LICE Name in Malay: kutu head louse Description Head lice, body lice and pubic/crab lice feed on human beings. Head lice (bluish or whitish and wingless) are commonly found among the hairs of the scalp. The eggs/ nits cling to hairs close to the scalp. Spread through shared combs, brushes, towels, hats, even bedding and furniture, and close personal contact. Crab lice are found in the pubic area and the eggs are attached to pubic hair. Spread via personal contact, shared bedding, and toilet seats used recently by an infested person. Control 1. Avoid sharing combs, brushes, towels, hats, scarves, etc. with other people. 2. Maintain a high level of personal hygiene. Use clean underwear and clothing. 3. Comb hair with fine-tooth comb specially designed to remove head lice and nits at least every few days. Shampoos will not kill the eggs so they must be manually removed. Combing with 66 AMP-2.P65 66 6/26/2006, 11:55 PM Pests in the Home a solution of one part vinegar and one part water makes it easier to comb the eggs out. 4. Use neem or oil-based (coconut or olive oil) shampoo. Combine shampooing with combing. 5. Rub neem oil mixed with some coconut or olive oil into the scalp and hair. Cover head and leave for one hour. Then shampoo as normal. Do this three times a week. 6. Lice are very susceptible to high temperatures so the use of hair dryers and hot water when shampooing may reduce numbers. However, be aware that younger children’s scalps are very sensitive to heat so do not make the water or hair dryer too hot. 7. Wash and soak infested scarves, bedding, clothes, etc. with hot water or place them in a hot dryer for at least ten minutes. The lice and eggs will die after five minutes at 55 degrees Celsius (Olkowski, 1991). Extreme cold (-20 degrees Celsius) for five hours also kills lice and nits (Olkowski, 1991). 8. For pubic lice, shave off the pubic hair and wash the skin thoroughly every day with hot soapy water. 67 AMP-2.P65 67 6/26/2006, 11:55 PM Debug Your Home the Natural Way SCABIES MITES Name in Malay: hama skabies /kudis buta scabies mite Description These mites burrow into the skin. Intense itching starts after about four to six weeks from initial infestation, followed by a rash that looks like tiny blisters. Confirmation of infestation should be done by a doctor. Spread by prolonged close contact with an infected person. Control 1. Treatment for scabies should involve the whole family and any intimate contacts of the person infected. 2. Apply a sulphur ointment nightly for about three nights. 3. Lemon juice mixed with turmeric (kunyit in Malay) is also a good application. 68 AMP-2.P65 68 6/26/2006, 11:55 PM Pests in the Home 4. To prevent reinfestation, wash or dry/steam clean bedding and clothing after last treatment. lemon 69 AMP-2.P65 69 6/26/2006, 11:55 PM Debug Your Home the Natural Way TICKS Name in Malay: tungau (anjing) brown dog tick Description Have eight legs. Hard ticks have a shield on their backs while soft ticks do not have this and look like pieces of bark. Dog ticks feed on the blood of dogs, causing them irritation and loss of vigour. After feeding, the ticks leave the animal to molt in humid places like cracks, crevices, baseboards, under carpets/rugs and pet beddings. Ticks may also be found on grass blades. Carriers of pathogens that cause diseases like Lyme disease and arthritis. Control 1. Check the dog regularly for ticks, especially between the toes and in the ears. 2. Confine the dog to specific sleeping areas to limit places of infestation. 3. Caulk crevices and cracks where ticks may breed. 70 AMP-2.P65 70 6/26/2006, 11:55 PM Pests in the Home 4. Vacuum crevices and cracks, walls and sleeping areas of the dog. Be sure to destroy the ticks in the vacuum bag by burning, sunning or freezing the bag. 5. Comb out the ticks with a flea comb. Be careful not to break off the mouth-parts. 6. Apply fingernail polish or petroleum jelly to embedded ticks an hour before gently removing them with tweezers. Do not twist the tweezers. Clean and apply antiseptic to the bitten area after removing the tick. 7. Include fresh garlic to dog food (about four cloves for a medium-sized dog) to repel ticks. 8. Frequent bathing in sea water is also said to reduce a dog’s susceptibility to ticks. Brown dog ticks can live for up to one and a half years without food. 71 AMP-2.P65 71 6/26/2006, 11:55 PM Debug Your Home the Natural Way 72 AMP-2.P65 72 6/26/2006, 11:55 PM Pests in the Garden PESTS IN THE GARDEN 73 AMP-2.P65 73 6/26/2006, 11:55 PM Debug Your Home the Natural Way 74 AMP-2.P65 74 6/26/2006, 11:55 PM Pests in the Garden PESTS IN THE GARDEN A DOPTING THE ATTITUDE THAT SOME VISIBLE EFFECTS of pest activity in your garden are tolerable is the first step in proactive pest control. It is best to create an environment that encourages a healthy presence of natural enemies/predators of garden pests. There are various species of plant bugs and insects that attack vegetables, fruits and other parts of plants. Some of the more common ones are addressed below individually but some basic guidelines apply to most animal garden pests in general. General Control Guidelines 1. Encourage natural predators of pests – these include frogs, spiders, birds and various beneficial insects. Steadily increase the diversity in your planting scheme, encouraging beneficial insect and animal communities above and below the ground. It is a good idea to leave the remains of pests where they stand so as to attract their natural enemies to feed on them. The remains will serve as nurseries of these beneficials which, in turn, will control future infestations of the same pests. 75 AMP-2.P65 75 6/26/2006, 11:55 PM Debug Your Home the Natural Way 2. Practise crop rotation especially for vegetables. Planting different crops in the same plot of soil over different seasons may prevent fresh reinfestations and widen the diversity of your garden insect/animal communities. 3. Remove the pests by hand and prune infested parts of the plant. 4. Knock the pest-insects off leaves and stems with a strong stream of water. 5. Isolate infected plants if possible. 6. Use natural sprays made from garlic, onions, citrus peels, red chillies, neem or coriander (ketumbar in Malay). Pound the substance and then boil in water for about ten minutes. Sieve the solution before spraying. Crushed red chillies can be left in water overnight. (Approximate quantities: 1 kg onions/garlic/chillies: 20 litres water. 1 part coriander leaves: 1 part water) 7. Some cooking oils like soybean, canola and sesame oils have natural pesticidal properties. Wipe them on the leaves or add them with a little soap to the sprays mentioned above so that the sprays will stick onto the leaves. 8. Some pests like grasshoppers and crickets are hard to get rid of or deter. Wrap newly formed fruits or vegetables with paper or plastic until harvesting time. 9. Smoking a tree with incense may drive the pests away. 76 AMP-2.P65 76 6/26/2006, 11:55 PM Pests in the Garden APHIDS Name in Malay: afid wingless aphid winged aphid Description Plant lice that suck plant juices and leave behind a sticky secretion. Can be green, reddish, black or yellow. Their secretion may cover their bodies and make them appear white and woolly. Attack a wide variety of vegetables, fruits and house plants. Carry viruses of plant diseases e.g., the mosaic virus which attacks tomatoes. Ants tend to protect aphids in order to gain access to the honeydew they excrete. Control 1. Remove by hand or with a paint brush. 2. Wipe leaves of indoor plants with a cloth dipped in light soapy water or light cooking oil. 77 AMP-2.P65 77 6/26/2006, 11:55 PM Debug Your Home the Natural Way 3. Leave the plants out in the sun for a while everyday. 4. Place reflective foil between rows of plants in the open. The reflection of the sky will confuse the aphids and they will not attack the plants. 5. Use neem oil or garlic and onion sprays. 6. Spraying with a mixture of flour and water, or a weak water-soluble glue solution will suffocate the aphids and their eggs. 7. Use less highly soluble forms of nitrogen fertiliser as aphid production is enhanced by high nitrogen levels in plants. Instead use slow-release fertilizers such as diluted fish emulsion or liquid seaweed. 8. Grow flowers in the garden as many natural predators of aphids are dependent on nectar and pollen for breeding. For instance, gall midges and lady beetles (kumbang kura-kura in Malay) eat aphids. gall midge lady beetle 78 AMP-2.P65 78 6/26/2006, 11:55 PM Pests in the Garden 9. Control the population of ants – they protect aphids. Apply sticky barriers e.g., a band of sticky material like grease to stalks of woody plants. 10. Follow general guidelines for garden pests. 79 AMP-2.P65 79 6/26/2006, 11:55 PM Debug Your Home the Natural Way CATERPILLARS (AND WORMS) Names in Malay: ulat bulu, ulat caterpillar cabbage looper army worm corn borer Description Caterpillars are young larvae of moths and butterflies. They come in different colours and sizes. Chew leaves, buds, fruits, stems and/or roots. Control *The controls listed here apply to garden pests such as caterpillars, army worms (ulat ratus), cabbage loopers (ulat kobis) and corn borers (pijat jagung). (Names in Malay are given in parenthesis.) 80 AMP-2.P65 80 6/26/2006, 11:55 PM Pests in the Garden 1. Manual removal of eggs and caterpillars/ worms. 2. Apply white/black pepper (lada putih/hitam in Malay) or red chilli powder. 3. Spray with white pepper solution. 4. Neem leaves are a natural repellant and neem seed kernel extract is a good larvicide. 5. Cover young shoots and vegetables with protective mesh. 81 AMP-2.P65 81 6/26/2006, 11:55 PM Debug Your Home the Natural Way FRUIT FLIES Name in Malay: lalat buah fruit fly Description Small and brown with yellow bands on their bodies. Attack fruits and vegetables such as tomatoes. Breed in fermenting substances such as decaying fruit. Adults deposit their eggs under the skin of the fruit and the larvae feed on the pulp. Larvae are white maggots that move quickly. Control 1. Collect fallen fruit as soon as possible. 2. Burn infested fruits to destroy the maggots. 3. Allow ducks, hens or geese to scavenge at the base of fruit trees attacked by fruit flies. They will eat the larvae pupating in the soil or decaying fruit. 4. Burning incense around the affected trees when they are about to fruit may help drive fruit flies away. 82 AMP-2.P65 82 6/26/2006, 11:55 PM Pests in the Garden MEALYBUGS Name in Malay: koya koya mealybug Description White, wingless, soft-bodied insects that secrete honeydew. Suck out plant juices. Usually found on stems or the underside of leaves. Live in the soil and feed on roots of plants like the African violet. Control 1. Remove adults and eggs manually. 2. Wipe affected leaves with wet cloth dipped in light oil. Soybean, canola and sesame oils are recommended. 3. Dab the insects with a cotton bud dipped in alcohol or methylated spirit. 4. Soap or oil sprays may also be used. 5. Natural predators are the black and orange lady beetles called ‘crypts’ (Cryptolaemus montrouzieri) 83 AMP-2.P65 83 6/26/2006, 11:55 PM Debug Your Home the Natural Way 6. Control the presence of ants as they protect mealybugs. Also limit the use of highly soluble nitrogen fertilisers. (See aphids.) 7. Follow general guidelines for garden pests. 84 AMP-2.P65 84 6/26/2006, 11:55 PM Pests in the Garden MITES Name in Malay: hama spider mite cyclamen mite Description Tiny creatures with four pairs of legs. There are different types. Presence detected by webbing and mottling of foliage (leaves). Thrive in dry conditions. Control 1. Wipe the leaves with a light soap solution. 2. Use a milk, oil, coriander, onion or sulphur spray. (Note: some plants may be damaged by sulphur. Also, do not use oil sprays and sulphur within a week of each other – they are not compatible.) 85 AMP-2.P65 85 6/26/2006, 11:55 PM Debug Your Home the Natural Way SNAILS AND SLUGS Names in Malay: siput babi, lintah garden snail slug Description Feed on young, succulent plants. Need damp, shady places – like crevices, under boards, moist leaves, rocks – to live and lay their eggs. May enter homes. Reproduce by cross-fertilisation as well as self-fertilisation. Control 1. Snails and slugs favour certain kinds of plants so look out for where you find them the most. Then thin out the plants in those areas so that some sunlight reaches them and there is good air circulation to dry out the soil. 2. Some mulches discourage snails and slugs. Try sea salt or crushed eggshells (they irritate the underside of the snail/slug and this can cause it 86 AMP-2.P65 86 6/26/2006, 11:55 PM Pests in the Garden to die) and experiment with other plants/ materials to see what works. 3. Remove the pests by hand, especially at night when snails are active. Put caught snails/slugs in a solution of water and alcohol to prevent them from crawling out of the container. 4. Trap them. Traps are especially effective after rain or watering the garden. a) Planks, overturned flower pots or inverted grapefruit halves (after the contents have been eaten) placed in moist, shady areas will attract the creatures. You can remove them the next morning and crush them with a stick. Crushed snails/slugs are attractive to other snails. b) Sink a smooth bowl into the ground in a damp, shady spot in the garden. Fill it with liquid bait such as beer or a mixture of water and yeast. Or fill it with water and sprinkle bran on top. The snails will fall into the bowl and drown. 5. Placing a copper band around the trunk of a plant will prevent snails from climbing up. 87 AMP-2.P65 87 6/26/2006, 11:55 PM Debug Your Home the Natural Way 88 AMP-2.P65 88 6/26/2006, 11:55 PM References REFERENCES 89 AMP-2.P65 89 6/26/2006, 11:55 PM AMP-2.P65 90 6/26/2006, 11:55 PM References REFERENCES References to Introduction Chapter “Welcome to the Toxic World” 1. Feldman, J. 1995 (September). Risk assessment, a community perspective. Environmental Health Perspectives, 103, Supplement 6. http:// www.ehponline.org/members/1995/Suppl-6/feldmanfull.html 2. Moses, M. 1995. Designer Poisons - How to protect your health and home from toxic pesticides. Pesticide Education Center. San Francisco, USA. 3. Xiomei, M.; P.A. Buffler; R.B. Gunier; G. Dahl; M.T. Smith; et al. 2002. Critical windows of exposure to household pesticides and risk of childhood leukemia. Environmental Health Perspectives, 110 (9), 955-960. 4. Alarcon, W.A.; G.M. Calvert; J.M. Blondell; L.N. Mehler; J. Sievert; et al. 2005. Acute illnesses associated with pesticide exposure at schools. JAMA, 294 (4), 455-465. 5. Watts, M. 2005. Pesticides: Sowing Poison, Growing Hunger, Reaping Sorrow. Policy Research and Analysis (Vol.2). Pesticide Action Network – Asia and the Pacific. Penang, Malaysia. 6. Colborn T. 2002a. Clues from wildlife to create an assay for thyroid system disruption. Environmental Health Perspectives, 110, Supplement 3, 363-367. 7. Colborn T. 2003. Neurodevelopment and endocrine disruption. Environmental Health Perspectives, 112 (9), 944-949. 91 AMP-2.P65 91 6/26/2006, 11:55 PM Debug Your Home the Natural Way 8. 1999. Warning: Pesticides are dangerous to your health! Stop endocrine disrupting chemicals. Pesticide Action Network – Asia and the Pacific (PAN AP). Penang, Malaysia. 9. Montague, Peter. 1999. Pesticides and aggression. http:// w w w. h e a l l . c o m / b o d y / h e a l t h u p d a t e s / f o o d / pesticidesandaggression.html 10. 2003 (3 September). Mosquito coils help control certain diseases, but release high levels of carcinogens. http:// www.ehponline.org/press/mosquito.html 11. Whyatt, R.M.; D.E. Camann; P.L. Kinney; A. Reyes; J. Ramirez; et al. 2002. Residential pesticide use during pregnancy among a cohort of urban minority women. In Environmental Health Perspectives, 110 (5).http:// ehpnet1.niehs.nih.gov/docs/2002/110p507-514whyatt/ abstract.html (* This study found detectable levels of pesticides in the blood and urine samples of pregnant women living in the homes that used the pesticides.) 12. Lister, S. 2006. Household insecticides could double child leukaemia risk. http://www.timesonline.co.uk/article/ 0,13509-1988878,00.html 13. Azizi B.H.O. and R.L. Henry. 1991. The effects of indoor environment factors on respiratory illness in primary school children in Kuala Lumpur. International Journal of Epidemiology, 20 (1), 144-150. 92 AMP-2.P65 92 6/26/2006, 11:55 PM References Other References 1994. Pyrethrins and pyrethroids. Pesticide information profiles. Extension Toxicology Network. http://extoxnet.orst.edu/pips/ pyrethri.htm 1999. Kamus Inggeris Melayu Dewan (An English Malay dictionary). Dewan Bahasa dan Pustaka. Kuala Lumpur, Malaysia. 2002 (22 November). Low sperm count quality in rural areas tied to herbicides, pesticides. http//www.ehponline.org/press 2003 (17June). Sperm quality may be damaged by agricultural practices. http//www.ehponline.org/press Curl, C.L.; Fenske, R.A.; and Elgethun, K. 2003. Organophosphorus pesticide exposure of urban and suburban preschool children with organic and conventional diets. Environmental Health Perspectives, 111 (3). http:// www.ehponline.org/docs/2003/5754/abstract.html Menon, L. 1993. Pests at Home. International Organisation of Consumers Unions. Penang, Malaysia. Olkowski, W.; W.S. Daar; and H. Olkowski. 1991. Commonsense pest control. The Taunton Press. Newtown, CT, USA. Skinner, M.; C. Winner; and J. Tinney. 2005. Washington State University Study Points to Role of Toxins in Inherited Disease. News Service. Washington State University. http:// www.wsunews.wsu.edu/detail.asp?StoryID=5261 Vijayalakshmi K.; K.S. Radha; and V. Shiva. 1995. Neem: A user’s manual. Centre for Indian Knowledge Systems, Madras, and Research Foundation for Science, Technology and Natural Resource Policy, New Delhi. India. Ware, G.W. 1996. Complete guide to pest control – with and without chemicals. Thomson Publications. California, USA. 93 AMP-2.P65 93 6/26/2006, 11:55 PM AMP-2.P65 94 6/26/2006, 11:55 PM Appendix A APPENDICES 95 AMP-2.P65 95 6/26/2006, 11:55 PM AMP-2.P65 96 6/26/2006, 11:55 PM Appendix A APPENDIX A COMMON NATURAL PEST REPELLANTS The common natural pest repellants recommended in this book (like neem oil and citrus peel oil) can be found at some local medicine stores or herbal stores. Alternatively, it is also possible to make these concoctions at home. 1. NEEM Name in Malay: mambu The neem is a tall tree with bitter tasting leaves. It is one of the most effective medicinal plants in India used to treat a host of ailments like diabetes and heart disease. It is reputed to have antibacterial, antifungal and anti-inflamatory properties. How to make neem seed kernel extract Like many other trees, neem trees bear fruits once a year. It is better to harvest the fruits rather than collect fallen ones – fallen fruit in contact with the soil is commonly infested with a dangerous fungus. Make sure the fruits are yellow (not greenish yellow or yellowish green) before harvesting. Put a plastic sheet under the tree and beat the branches with a stick. Collect the fallen fruit from the plastic sheet. Throw away bad or mouldy ones. Remove the pulp of the fruit by twisting the fruit between thumb and index finger. The seeds should be milky white in colour. Dry them upside down on a mat or sheet in 97 AMP-2.P65 97 6/26/2006, 11:55 PM Debug Your Home the Natural Way the shade for two or three days. They should not be exposed to rain or direct sunlight. Store the seeds in well-aerated baskets or gunnysacks (not in plastic bags) – they should be kept dry. The seeds used to make the kernel extract should be between 3-7 months old. 1. Take 75 g of neem seeds. Pound the seeds gently, just hard enough to break the seed coats. Then remove the seed coats and any bad kernels. Pound the good kernels (make sure no oil comes out) into a fine powder. neem leaves 2. Mix the powder into one litre of light soapy water (oily soap is better). Filter or sieve the solution before using as a spray. The soap will help the powder stick onto the leaves. Be sure to cover the leaves completely with the spray – on top and underneath them. Apply once or twice a week. How to make neem (seed) oil Neem oil is quite easily found at local medicine/herbal stores. However, if you wish to make it yourself, try this method: 98 AMP-2.P65 98 6/26/2006, 11:55 PM Appendix A Put some of the neem kernel extract/powder you made earlier into a large bowl and add a small quantity of water, just enough to form a paste. Knead the mixture with the palm of your hand for a few minutes, pressing the neem paste firmly against the side of the bowl until the oil begins to come out. (1 kg of neem kernel extract should produce about 150 ml of neem seed kernel oil.) Neem oil is made up of a complex mixture of biologically active compounds which act in various ways against different insects – as repellant, feeding inhibitor, egglaying deterrent, growth retardant, steriliser and toxin. It has been used for centuries. Neem oil spray is more effective against aphids and stem borers than neem seed kernel extract. Mix 30 ml of neem oil thoroughly with 1 litre of water and a little soap. Use immediately. How to make neem leaf extract Neem leaf extract is particularly effective against leafeating insects like grasshoppers, locusts and caterpillars. 1. Soak 1 kg of crushed/pounded green neem leaves in 5 litres of water overnight. The next day, filter the mixture and use it as a spray. (This method is recommended over the next one.) 2. Alternatively, you could boil the leaves in water until the green colour disappears from the leaves. Cool and filter the mixture before use. 99 AMP-2.P65 99 6/26/2006, 11:55 PM Debug Your Home the Natural Way 2. CITRUS PEELS Name in Malay: kulit buah limau Citrus peels contain limonene and linalool which are effective insecticides against aphids, fleas, mites, houseflies, fruit flies and many other insect-pests. Home-made citrus peel oils are safe and can be used as an effective insecticide for plants, humans and animals (except cats which are sensitive to citrus peel mixtures/ oils). Mix the oil thoroughly in light soapy water and use as a spray for plants. The oil can also be safely applied to human skin to ward off insects. How to make citrus peel oil 1. Place one quarter cup of cut citrus peels (oranges, limes, lemons) in a plastic bag, seal the bag and lightly tap the peels so as to crush them lightly. 2. Mix the contents with a cupful of light oil (e.g., almond, olive, soybean, sesame or canola oil) in a glass jar. Cover the jar tightly and shake. Leave the jar to stand in a warm place (like the kitchen). lime and orange 3. Drain out the contents into a muslin or cheesecloth sieve and squeeze the remaining 100 AMP-2.P65 100 6/26/2006, 11:55 PM Appendix A contents to get out as much oil as possible. Store in a glass bottle with a tight cover in a cool, dark, dry place. Will keep for up to six months. Another recipe: 1. Tear mint leaves (pudina) and put these with citrus peels in a clean glass jar. Heat light oil (e.g., olive oil) to about 160 degrees and pour over the leaves and citrus peels until they are covered. 2. Cover the jar and let it stand in a dark place for a few weeks. 3. Drain and store the oil in a cool, dark, dry place. 3. GARLIC Name in Malay: bawang putih Garlic has antibacterial, antifungal and insecticidal qualities. Garlic oil kills insect-pests but also kills beneficial insects and microbes. Thus, use it only on affected plants and not as a general spray for the whole garden. A garlic, neem oil and soap combination produces good results. Alternatively, soak crushed garlic with water and alcohol. Test spray first on a few leaves for sensitive ornamental garlic plants. 101 AMP-2.P65 101 6/26/2006, 11:55 PM Debug Your Home the Natural Way How to make garlic oil 1. Soak 100 g of finely minced garlic cloves in 2 teaspoons of any lightweight oil (e.g., canola, sesame, soybean or neem) for at least 24 hours. 2. Slowly add 1 litre of water with some oily soap mixed into it. Stir thoroughly and strain into a glass jar/bottle for storage. Use at a rate of 1 to 2 tablespoons of mixture to 1 litre of water to make a spray. 4. CITRONELLA Names in Malay: maha pengiri, serai wangi and serai There are different types of citronella plants. Citronella’s main constituents are citronellal and geraniol, commonly used to make perfumes. Citronella winterianus is known as maha pengiri (or serai wangi) in Malay. Lemon grass citronella (serai) is a common plant in Malaysia which is used in cooking and to repel mosquitoes. citronella pelargonium 102 AMP-2.P65 102 6/26/2006, 11:55 PM Appendix A Citronella oil has been used for many years as an insect and animal repellent. It is found in many insect repellent products such as candles, lotions, gels, and sprays. Citronella products are available from local medicine/ herbal stores. You can also tie citronella leaves in a knot and put them in your cupboards and car as an ‘air freshener’ as well as insect repellant. 103 AMP-2.P65 103 6/26/2006, 11:55 PM Debug Your Home the Natural Way APPENDIX B RESULTS OF SURVEY ON PESTICIDE USE AND ALTERNATIVE PEST MANAGEMENT METHODS – CONDUCTED BY MR. ONG BOON KEONG OF SOS FOR PAN AP (2004) Survey location: Penang, Malaysia Sample size: 223 1. Objective and Methodology of Survey: To collect information on the use of pesticides in households in Penang and to search for original/indigenous knowledge on alternative pest control methods. Methodology: questionnaire and interviews 2. Demographics of Respondents a. Majority (over 90%) were aged 30 and above with the biggest groups being between 40 and 60 years. b. About three-quarters were men. c. Over 60% were managers, executives and professionals. d. More than 75% were married and more than half of the wives had jobs outside the home (besides regular housework). About 64% had children, from very young to over 12 years. 104 AMP-2.P65 104 6/26/2006, 11:55 PM Appendix B e. Majority had at least Form Five (O-level) education. f. The dominant income group earned between RM1,000 and RM3,999, followed by those who earned less than RM1,000. g. The largest group lived in the urban area, followed by rural and sub-urban areas. 3. Use of Pesticides a. An overwhelming majority (81%) of the respondents used pesticides and spent an average of RM49 per month on these. Popular methods were spraying (use of aerosols) and poisons in tablet or powder form. Although most claimed to know what pesticide they were using, only four respondents could actually name the brand/company. b. Demographics of pesticide users In over 40% of the time, the pesticides were applied by the respondents themselves. Therefore, it is likely that the demographics of the pesticide users are similar to those of the respondents. Three-quarters were men, mostly aged between 40 and 60 years of age, married (with children), and educated. c. The three main reasons for using pesticides were: ease of use, low price (cheap) and (the 105 AMP-2.P65 105 6/26/2006, 11:55 PM Debug Your Home the Natural Way influence of) advertisements. Ironically, ‘effectiveness’ was not rated by suburban or rural respondents as a critical factor. d. The rural users were found to take most precautions when using pesticides compared with their suburban and urban (lowest level of caution) counterparts. e. The rural and suburban users reported a much higher incidence of adverse effects (namely, breathing difficulties, sneezing, coughing, eye irritation and dizziness) from using pesticides than the urban users. 4. Alternative Pest Management (APM) About 49% of the respondents claimed to practise APM (i.e., non-chemical pest control solutions). Common methods included different types of traps, cleanliness measures and keeping cats (to catch rats). 5. Comparisons between Pesticide and APM Users a. The demographics of APM users were generally similar to pesticide users. However, a slightly bigger margin of those above 60 years of age practised APM compared with the 40-49 age group, who showed a preference for pesticides. b. Families in which the wife/mother worked outside preferred to use pesticides whereas families where the wife/mother was a full-time homemaker preferred APM. 106 AMP-2.P65 106 6/26/2006, 11:56 PM Appendix B c. The level of education was not a factor in pesticide–APM preferences. d. Business entrepreneurs/managers/executives/ professionals preferred APM compared with (lower-ranking) workers who preferred using pesticides (for pest control in the office). e. Business establishments also showed a significant preference for APM over pesticides compared with households which used pesticides more than APM solutions. f. Urban areas led in terms of both pesticide as well as APM usage, followed by rural and suburban areas. However, APM practice is less popular in all three regions, implying the effect of commercialisation of pesticides. N.B. There is some overlap between the percentages for pesticide and APM users because some respondents used both. 107 AMP-2.P65 107 6/26/2006, 11:56 PM Debug Your Home the Natural Way APPENDIX C RESULTS OF SURVEYS ON PESTICIDE USE AND ALTERNATIVE PEST MANAGEMENT METHODS – CONDUCTED BY ERA CONSUMERS FOR PAN AP (2004) Population Location: Selangor and Perak, Malaysia ERA Survey 1: Pesticide Users Sample Size: 209 1. Objective and Methodology of Survey: To collect information on the use of pesticides in households in Selangor and Perak. Methodology: questionnaire and interviews 2. Demographics of Respondents a) Most (57%) were business respondents in various industries, namely textile (13%) and food (10%). b) Majority of the respondents (54%) were aged 30 – 49 years of age. c) Fifty-one per cent were male and 49% were female. d) Approximately 73% were married while 27% were single. 108 AMP-2.P65 108 6/26/2006, 11:56 PM Appendix C e) Almost all the married respondents had children. Around 43% had children over 12 years of age while the remaining had children aged 12 and below (71% of whom had a child younger than three years old.) f) Forty per cent were non-clerical staff while 14% worked at management level. Approximately 17% were full-time homemakers. g) Around 42% possessed SPM (0-level) qualifications with 23% holding SRP (Form 3) qualifications. Thirty-three per cent of respondents did not answer this question. h) Thirty-nine per cent earn a household income of between RM 1,000 – 3,999 per month, followed by 26% who earned less than RM 1,000 per month. i) Sixty-two per cent of the respondents lived in suburban areas while 35% lived in urban areas. j) About 63% lived in landed properties while 30% lived in high-rise buildings (2-5 floors). k) Most of the respondents (64%) did not have air-conditioning in their homes. 3. Use of Pesticides a) Eighty-eight per cent of the people who applied the pesticides were adults. The pesticides were purchased from grocery stores and supermarkets. Aerosol sprays topped the list as the most frequently used pesticide (63%). 109 AMP-2.P65 109 6/26/2006, 11:56 PM Debug Your Home the Natural Way b) Approximately 44% did not show any particular preference for any pesticide brand. The rest had specific preferences for particular local insecticide brands. c) Majority of the respondents (94%) spent less than RM50 on pesticides per month. d) The three main reasons for using pesticides were: (1) pests cause diseases, (2) ease of use and (3) pests cause allergies. e) Seventy-seven per cent said they took precautions when using pesticides. Most (51%) believed that pesticides were hazardous while 39% thought they were not (i.e., they were safe to use). The remaining 10% did not know whether pesticides were hazardous or not. f) Most of the respondents learnt about pesticides from advertisements on the television and radio, and from their family members. g) Around 50% stored their pesticides in the cupboard while another 48% kept them in the storeroom. The remaining 2% kept them in the bedroom. 110 AMP-2.P65 110 6/26/2006, 11:56 PM Appendix C h) Those using pesticides reported the following reactions: Coughing 38% Eye irritation 32% Sneezing 31% Breathing problems 29% Rashes on skin 16% Dizziness 5% Loss of appetite 5% Hand tremors 2% Bleeding 2% (The percentages do not add up to 100% because of multiple reactions by some.) ERA Survey 2: APM Users Sample size: 25 respondents 1. Objective and Methodology of Survey: To collect information on original/indigenous alternative pest control methods in households in Selangor and Perak. Methodology: questionnaire and interviews 2. Demographics of Respondents a) Business respondents numbered five (type of business not given). The rest were home-based. b) Thirty-six per cent of the respondents were aged 30-39 years. Twenty-eight per cent were in the 40-49 age group, 20% were in their twenties and 16% were younger than 20. c) Females made up the majority (64%) of the respondents while 36% were male. 111 AMP-2.P65 111 6/26/2006, 11:56 PM Debug Your Home the Natural Way d) Most respondents (76%) were married while 24% were single. e) Twenty out of the 25 respondents had children. Out of this, 37% had children over 12 years of age; the rest had children below 12 (ages from below 1 to 12 were quite evenly spread out). f) Forty-four per cent of the respondents were non-clerical while 16% worked at management level. Forty-four per cent of the respondents’ spouses were also non-clerical while 16% of them owned their own businesses. g) Twenty-four per cent had SRP qualifications while 32% had Standard 6 (primary school) qualifications. h) Over half of the respondents earned between RM1,000 – 3,999 per month and 40% earned less than RM 1,000 per month. i) Most (76%) lived in suburban areas with 20% living in urban areas. j) Sixty-eight per cent lived in high-rise buildings (2-5 floors) and 32% lived in landed properties. k) Majority of the respondents (76%) did not have air-conditioning in their homes. 112 AMP-2.P65 112 6/26/2006, 11:56 PM Appendix C 3. APM Usage a) Most (88%) of those who applied APM methods were adults. b) The reasons for using APM methods were (1) cost savings, (2) health reasons, (3) greater effectiveness and (4) familiarity with the methods. c) Knowledge of APM solutions came from family members (52%) and community practices (48%). 113 AMP-2.P65 113 6/26/2006, 11:56 PM AMP-2.P65 114 6/26/2006, 11:56 PM Appendix C INDEX OF PESTS Ants Aphids Army worms Bed bugs Booklice Cabbage loopers Carpet beetles Caterpillars Cigarette beetles Cockroaches Confused flour beetles Corn borers Fleas Firebrats Fruit flies House dust mites House flies Indian meal moths Lice Mealybugs Mosquitoes Mice Mites (on plants) Rats Rice weevils Sawtoothed grain beetles Scabies mites Silverfish Slugs Snails Snakes Termites Ticks PAGE 27 77 80 29 31 80 34 80 55 36 55 80 61 31 82 63 38 55 66 83 41 45 85 45 55 55 68 31 86 86 48 49 70 115 AMP-2.P65 115 6/26/2006, 11:56 PM AMP-2.P65 116 6/26/2006, 11:56 PM PLEASE SHARE YOUR APM SOLUTIONS WITH US Dear Reader Thank you for joining us in our efforts towards a safer, cleaner world by obtaining a copy of this book. We hope you have enjoyed reading it and that you will find it useful and beneficial as you take the step towards pesticide-free pest control methods. The alternative pest control methods listed in this book are not exhaustive. PAN AP welcomes and appreciates input from enthusiastic APM practitioners as to other successful natural methods not stated here. Please provide as many details as possible. Do feel free to write to us via post or email. Our addresses are as follows: Pesticide Action Network Asia and the Pacific (PAN AP) P.O Box 1170, 10850 Penang, Malaysia. Tel: (604) 6570271 & 6560381 Fax: (604) 6583960 E-mail: [email protected] Thank you. PAN AP AMP-2.P65 117 6/26/2006, 11:56 PM PESTICIDE ACTION NETWORK ASIA AND THE PACIFIC (PAN AP) Pesticide Action Network Asia and the Pacific (PAN AP) is one of five regional centres of PAN, a global network working to eliminate the human and environmental harm caused by pesticides, and to promote biodiversity-based ecological agriculture. “Our vision is a society that is truly democratic, equal, just, culturally diverse, and based on food sovereignty, gender justice and environmental sustainability”. Thus PAN AP asserts people’s food sovereignty based on the right to food for all, founded on the right to land and productive resources and the right of communities to decide on our own food and agriculture policies. We are committed to protect the safety and health of people and the environment from pesticide use, and genetic engineering in food and agriculture. We strive to protect and promote the rights, equality and dignity of women. We will promote and protect biodiversity based ecological agriculture. Our goal is to strengthen people’s movements to eliminate hunger and achieve food sovereignty. We endeavour to achieve these goals by empowering people within effective networks at the Asia and the Pacific, and global levels. Based in Penang, Malaysia, Pesticide Action Network Asia and the Pacific is linked to more than 150 groups in 18 countries in the Asia Pacific region. AMP-2.P65 118 6/26/2006, 11:56 PM AMP-2.P65 119 6/26/2006, 11:56 PM AMP-2.P65 120 6/26/2006, 11:56 PM