June - Cooperative Extension
Transcription
June - Cooperative Extension
University of Arizona Yavapai County Cooperative Extension Yavapai Gardens Master Gardener Newsletter June 2014 Monarch Butterflies, Milkweeds and Master Gardeners By Bob Gessner and Cathy Palm-Gessner Events & Activities MG Association Meeting, Wednesday June 11 Please note this is a change from the regular meeting date. See last page for details. Alta Vista Gardening Club, Prescott, fourth Tuesday of the month, 12:30pm. Call 928-458-9508 for information. Prescott Area Gourd Society, third Tuesday of the month, 6:30 pm, at Yavapai Title, 1235 E. Gurley. Prescott Orchid Society, 4rd Sunday of the month, 1pm at the Prescott Library, (928) 717-0623 Prescott Area Iris Society call 928-445-8132 for date and place information. Mountain View Garden Club, Prescott Valley, Dewey area, 2nd Friday of month, 1:30pm, call 775-4993 Native Plant Society Meetings - Prescott. 2nd Thursday of the month, 6:30pm. Attending the talk qualifies as Continuing Education. Non-members are welcome. Highlands Center for Natural History, 1375 S. Walker Rd. (928-776-9550). The Verde Thumbs Garden Club, Cottonwood 2nd Tuesday, 6:30 pm at The Seventh Day Adventist Church. (928) 634-7172 Table of Contents Monarch Buttlerflies, Milkweeds and Master Gardeners . . . 1 Moths are Butterflies. No! Butterflies are Really Moths . . . 3 Attracting Butterflies . . . 4 Butterflies in Our Backyard . . . 5 Did You Know? . . . 6 MG Announcements . . . 6 100 Years . . . 7 After our trip this February to the monarch butterfly wintering sites in Mexico, Cathy was asked to be the local contact person for the Southwest Monarch Study organization in our area. A number of master gardeners have expressed an interest in monarch butterflies and gardening with milkweeds and have asked us to provide more information. About 725 species of butterflies occur in North American north of Mexico and about 335 of these species are in Arizona. Approximately 2000 species of butterflies are found in Mexico (naba. org). The monarch butterfly (Danaus plexippus) is probably the best known and recognized butterfly by most Americans. Over the past 20 years its numbers have been declining in North America. Many of you have read or heard recent accounts of the lowest numbers of monarchs ever reported at their wintering sites in Mexico. The area covered is down from 31.12 acres in 1995-1997 to 1.65 acres in 2013-2014 (http://www.nwf.org/). The numbers at the 101 different California wintering sites have also dropped from highs of around 1.2 million to an all-time low of about 145,000 monarchs in 2012 (blog.nwf.org). The migration from Canada and the US to Mexico appears to be in peril. Why should we care? Like bees, wasps, beetles and moths, butterflies including monarchs move pollen from one flower to another. Pollination enables sexual reproduction in plants and the production of fruits and seed. Factors that diminish pollinators have a wide impact on many plants and animals, including humans. Monarch decline and bee decline are major indicators of the disruption of our natural ecosystems. Why are monarch butterflies declining? A number of factors have been correlated with the declining numbers. 1. Loss of habitat in key areas in the US such as the “Corn Belt.” According to Chip Taylor, monarchwatch.org, the loss of these habitats since 2008 exceeds 24 million acres (an area about equal to the state of Indiana). It is believed that up to 90% of monarchs in the past were produced on the common milkweed, Asclepias syriaca, from this region. 2. The weather conditions in 2013 and possibly the longerterm influence of climate change are impacting the migration. 3. The use of genetically modified crops that tolerate her- bicides (glyphosate, glufosinate and imidazoline herbicides) and the wider use of these herbicides have reduced the number of milkweed plants. 4. Insecticide application and drift on milkweeds and nectar plants reduces butterfly numbers. 5. Forest practices in Mexico have also been cited but from our observations of the forests utilized by monarchs in Mexico they appear to be healthy and regenerating. The loss of milkweeds in the US is by far the major problem. Milkweeds Monarch butterflies lay their eggs on milkweed plants. Their larvae will only feed on the various species of milkweeds. The adults do not require milkweed but need flowers with nectar to build up reserves for migrating. They also need a source of water and moist soil from which they get needed minerals. Milkweeds get their name from the white sap (latex) found in most species. The latex contains cardiac glycosides and sometimes other toxins. These toxins accumulate in the monarchs and help protect them from predators. In Yavapai County there are 9 native milkweed species (http://swbiodiversity.org/). Probably the most commonly known milkweed is butterfly milkweed (Asclepias tuberosa). The flower color varies from yellow to bright orange and the yellow biotype is found in the Southwest. It lacks the milky sap found in most of the other species. In Arizona, it usually occurs on well-drained sandy soils in grasslands, montane habitats and clearings in pine forests from 4,000 - 8,000 ft. . Butterfly milkweed is considered to be one of the most widely dispersed and beautiful wildflowers of temperate North America (swcoloradowildflowers. com). Spider or antelope horns milkweed (A. asperula) gets its common name from the upward-curving petals and/ or curved shape of the seed pods. The flowers are greenishwhite with purple tinges and are fragrant. The flowers have five upward-curving petals and a five-part crown of purple horns tipped with white. The spider milkweed occurs in dry plains, slopes, and clearings in oak woodlands and pine forests from 3000 9000 ft. (prescottnatives.com). Two species, the whorled milkweed (A. subverticillata) and the showy milkweed (A. speciosa) are worth trying in gardens. There is also the tropical milkweed (A. curassavica) that can be grown as an annual. We saw monarch eggs and larvae on these in gardens when we were in Mexico. You can find information on the other local species of milkweeds online. (http://swbiodiversity.org/, prescottnatives. com, swmonarchs.org). What can Master Gardeners do to help? You can help by planting milkweeds in your garden. Monarchs lay their eggs on milkweeds and milkweeds are the only food source for the larvae. Monarch Watch recommends that you plant 10 or more milkweed plants so they can more easily be found by the butterflies. Butterfly and spider milkweeds form large deep root systems and are drought tolerant once they are established. Information on where you can obtain Arizona seed and plants are available at http://www.swmonarchs.org/. Local nurseries and heirloom seed companies are now carrying Arizona milkweed seeds and plants. You also need to plant native and/or ornamental flowering plants in your garden that are sources of nectar. Lists for the Central Arizona Highlands are available at https://www.facebook.com/SouthwestMonarchStudy. Usually flowers with a landing pad like zinnias or sunflowers are good choices. You can even set up a Monarch Waystation (http://www.monarchwatch.org/waystations/waystation_guide.pdf). You should also provide a source of water and moist soil from which the monarchs can get needed minerals. Don’t use insecticides on your milkweeds and nectar plants. How about growing milkweeds from seed for future Monsoon Madness plant sales! 2 Southwest Monarch Study in Arizona “The Southwest Monarch Study is researching the migration patterns of monarch butterflies in Arizona and the western United States. It was once believed that monarch butterflies east of the Rocky Mountains flew to the mountains near Mexico City for the winter and monarchs west of the Rockies flew to the coast of California. Through fall tagging in Arizona and the Southwest (Nevada, New Mexico, Southern California deserts) we have learned that this is not always the case. There is much more to learn about the wild monarch migration in Arizona and throughout the Western states. If you love monarch butterflies, consider joining our study. (http://www. swmonarchs.org/). You can also help by being a spotter and/or tagger. There will be informational workshops as well as presentations on monarchs this summer. (July 13 at the Prescott Library and July 18 at the Highlands Center for Natural History) If you would like to be contacted about the workshops on spotting and tagging contact Cathy at cpalmgessner@ gmail.com. For more information http://www.swmonarchs.org/ https:// www.facebook.com/SouthwestMonarchStudy http://www.monarchwatch.org/ http://www.journeynorth. org/ http://garynabhan.com/i/archives/2354 http://www.monarchbutterflyfund.org/ Moths are butterflies. No! Butterflies are really moths by Nora Graf To a taxonomists there is no real difference between the two. In fact, attempts to differentiate between the two have failed. There are morphological and behavioral differences that can be used to divide them. The antennae are different with butterflies having thin slender antennae that are club-shaped at the end while moths have feathery or comb-like antennae, although there are exceptions. Moths spin a silk cocoon while butterflies form an exposed pupa known as a chrysalis, although there are exceptions. For example, Hawk moths and Gypsy moths sometimes form butterfly-style pupae. Butterflies are brightly colored while moths are brown and gray except when they are not. Day-flying moths are brightly colored. Oh, by the way moths don’t all inhabit the night —some are day flyers. Moths and butterflies have different resting postures but those just depend on the species. So stop thinking of moths as the less interesting cousins of butterflies; you just aren’t not looking close enough. In southeastern Arizona researchers found over 1900 species of moths. With all those moths out there maybe we should start paying attention to them also. Moths evolved before butterflies. Fossils of moths as old as 190 million years have been found. Scientists think that moths evolved along with flowering plants and so you might find yourself agreeing that butterflies are really moths. Like butterflies, moths go through a larval stage. The caterpillars are sometimes a major agricultural pest and include things like corn borers and bollworms. The gypsy moth can become nasty forest pests and codling moths are the bane of fruit trees. Others are famous for eating our clothes, especially anything wool or silk. Then there is the silkworm from which we get silk, one of the most luxurious fabrics ever created. Moths are attracted to and circle artificial light. There are theories about this but no one really knows why they do it. Pay attention to moths sometime. They may not be butterflies but they can be beautiful and are a food source for bats, bears, lizards and birds. 3 Attracting Butterflies by Nora Graf The beauty of and long journey Monarchs endure makes it a megastar compared to the smaller and less dramatic butterflies but there are some real beauties out there that we often overlook. There are also some moths which are the poor stepchild to butterflies but are very interesting and beautiful in their own right. There are over 335 species of butterflies in Arizona including species like Swallowtails, Sulfur, Blues, Metalmarks, Snouts and Skippers. If you are creating a butterfly garden don’t limit yourself to the needs of monarchs. While butterflies can usually feed on a variety of plants, the larval stages can often have very specific and limited tastes. While we begrudge any “worm” on our beloved plants, without caterpillars there are no butterflies or moths. To attract butterflies the best thing is to plant flowers. Large plantings do best. Plants like zinnias, marigolds, daisies and thistles work well, but to keep the butterflies in the area, figure out what works best to have them lay their eggs in your yard. Consider these plants to both attract butterflies and to feed their larva. You can’t have moths and butterflies without caterpillars. Before you get out the toxic chemicals to kill caterpillars you might want to take the time to determine what they become. I have caterpillars that absolutely devastate my sunflowers every year. Turns out they become Painted Lady butterflies. Glad to have them! Check out the website to help figure out what caterpillar you have. http://www.discoverlife.org/mp/20q?&guide=Caterpillars https://insects.tamu.edu/extension/insctans/identification/ caterpillar_pests/couplet1.html Arizona Poppies (Kallstroemia grandiflora), not the California poppy, so make sure you have the right one to attract adult butterflies. Yellow Columbine attracts adults. Chocolate Flower attracts adults. Blue mist (Caryopteris x clandonenis ‘Dark Knight”) is a plant that is readily available in nurseries. Various butterfly species feed on it, some may use it as a larval site also. Some grasses like Sideoats Grama (Bouteloua curtipendula) is a larval food for Checkered skippers and Bamboo Muhly (Mulenbergia dumosa) is liked by Orange skippers. Others that attract butterflies are Blue Grama (Bouteloua gracilis), Pink Mist (Muhlenbergia dumosa), Deer Grass (Muhlenbergia rigens) and Indiangrass (Sorghastrum nutans). Black Dalea (Dalea frutescents) attracts Southern Dogface caterpillars. Mallow (Malva sp.) is a larval food plant for Checkered Skippers. Red Bird of Paradise (Caesalpinia pulcherrima) attracts Swallowtails, Sulfurs and some Skippers. Passionflowers are a bit frostsensitive but they attract adults who may then lay their eggs. Golden Dyssodia (Dyssodia pentachaeta) provides food and nectar for Dainty Sulfurs, both the butterfly and caterpillar. Mountain Marigold, Cosmos and Spreading Fleabane are liked by Buckeyes. Pipevine (Aristolochia sp.) is a larval food for Swallowtails. Various agaves and yuccas feed larvae including any that grow in your area. They include (not an inclusive list) Palmer’s Agave, Desert Agave, Schott’s Agave, Banana Yucca and Soaptree Yucca. Desert Hackberry (Celtis pallida) is a larval food for Snouts and Empress Leilias. The Leilieas feed on the sap and rotting fruit vs. the flowers. Sunflowers will attract adults who then may lay their eggs. The Desert Botanical Garden has an extensive list on its website if you want to find more plants that might work. There is an extensive list for the Prescott area also. http://www.dbg.org/system/files/253/original/Butterfly%20 Gardens%208-11.pdf?1315954953 http://www.naba.org/ftp/cahi.pdf Rabbitbrush (Chrysothamnus nauseosus) is an excellent nectar bush. Reakirt’s Blues really like rabbitbrush. Velvet Mesquite (Prosopis velutina) has leaves that are eaten by Leda Hairstreaks. 4 Butterflies in Our Backyard by Nora Graf These butterflies can be found in Yavapai County: Painted Ladies (Vanessa cardui)These are one of the most widespread butterflies. They are found everywhere except in Antartica and South America. They are migratory butterflies and prefer to lay their eggs in areas with lots of flowers. Pipevine Swallowtail (Battus philenor)The caterpillars are picky eaters feeding only on species of the pipevines (Aristolochia), while the adults only feed on nectar from thistles, bergamot, lilacs, petnunias, lupines, yellow star thistle (glad it’s good for something) and a few other plants. Pacuvius Duskywing (Erynnis pacuvius)Adults feed on flower nectar while catepillars are found on various species of Ceanothus. Funeral Duskywing (Erynnis funeralis)The adults feed on flower nectar while the catepillars are found on legumes like Mexican locust, bur clover, desert ironwood and vetch. Queens (Danaus gilippus)-A monarch look-alike with same liking for milkweeds for both adults and caterpillars. Monarchs (Danaus plexippus)-They feed on various flower nectars as adults but the caterpillars are milkweed exclusive. Orange Sulphur (Colias eurethemer)-The caterpillars prefer plants in the pea family, including alfalfa and clovers. The adults feed on nectar from milkweeds, goldenrod, dandelions, asters and others. Sara Orangetip (Anthocharis sara)-A picky butterfly, adults feed on flower nectar, including mustards, thistles, fiddlenecks and brodiaeas while the caterpillars need plants in the mustard family, preferably rock cresses. Juniper Hairstreaks (Callophrys gryneus)Adults feed on flower nectar from a variety of plants while the catepillars feed exclusively on junipers. Reakirt’s Blue (Echinargus isola)-The adults feed on the flowers of herbs, including spearmint and white sweet clover while the caterpillar needs members of the pea family, including yellow sweet clover, mesquite, indigo bush and mimosa. Mormon Fritillary (Speyeria mormonia)-It feeds on various flowers but lays its eggs on violets. Empress Leilia (Asterocampa leilia)-In spite of its lovely name it is less discriminating in its food at times. It eats sap and dung and sometimes flower nectar and uses Celtis pallida (hackberry) to feed the caterpillars. Fiery Skipper (Hylephila phyleus)-Looks kind of moth-like. It feeds on flower nectar including knapweed, thistles and asters and likes grass for its caterpillars including burmuda, crabgrass and St. Augustine grass. Greenish-Blue Lycaenid (Plebejus saepiolus)This pretty blue-green-gray butterfly likes clovers for its caterpillars and feeds on flower nectar as an adult. Cloudless Sulphur (Phoebis sennae)-The Cloudless is more specific than the Orange Sulphur and restricts itself to the genus Senna (a member of the legume family). American Snout Butterfly (Libytheana carinenta)-The snout part of the name comes from labial palps that extend forward. They are used to help them appear like dead leaves. They prefer flower nectar from a number of plants including dogwood, goldenrod and asters and use hackberry for a host plant for the caterpillars. Two-Tailed Swallowtail (Paplio multicaudata)-It likes the velvet ash, hop tree and chokecherry for the caterpillars but the adults feed on the nectar of thistles, milkweeds, lilacs and other plants. The Arizona’s State Butterfly. Variegated Fritillary (Euptoieta Claudia)The caterpillars are sort-of centipedishlooking. Nectar from milkweed and some sunflowers and other plants are the adult foodsource while the caterpillar feeds on members of the passionflower, violets, purslane and sedum. 5 Hoary Comma (Polygonia gracilis)-Caterpillar hosts include currants and gooseberries while the adults feed on nectar from sweet everlasting and other flowers. California Sister (Adelpha californica)-the host for the caterpillars are oaks while the adults like mud, water and rotting fruit. There is an Arizona sister but it is thought to only be in SE Arizona, Mexico and a few other parts of the west. The taxonomy seems to be in flux. Sleepy Orange Sulphur (Eurema nicippe)-Picky when it comes to its young—the host needs to be a cassia species. Adults feed on flower nectar. Pine White (Neophasia menapia)-As you might have guessed this butterfly likes pines for its caterpillars. As an adult it feeds on rabbitbrush and yellow composites and monarda. Viceroy (Limenitus archippus)-This is one of the large showy butterflies that resembles monarchs. They prefer willows, cottonwoods and poplars for their caterpillars while the early adults feed on aphid honeydew, carrion dung and decaying fungi. Later generations will feed on flower nectar. Black Swallowtail (Papilio polyxenes)-The adults feed on flower nectar including red clover, mildweeds and thistle, while the caterpillars are found on members of the parsley family including carrots, dill and Queen Anne’s lace and sometimes they use citrus plants. 928 Congratulations for completing 50 hours Maria Sancho mentor Pauline Rotta Karen Brown Did you know? By this time you should know that monarchs complete an astonishing migration but did you know that the top speed of a butterfly is 12 miles per hour but some moths fly up to 25 miles per hour. Butterflies can’t fly if the temperature is below 86 degrees. The species of butterflies number around 24,000 while there are approximately 140,000 different species of moths. Most butterflies have a short lifespan except for the Brimstone butterfly. It can live 9 to 10 months, the longest on record. Some butterflies taste with their feet. This is the way they find out if the plant is good enough to lay their eggs on. Some moths never eat, they don’t even have mouths. They live on energy stored as caterpillars. Another interesting case are female moths that don’t have wings., All they do is crawl. Most moths and butterflies have proboscis for feeding on flowers. The Morgan’s Sphinx moth from Madagascar proboscis is 12 to 14 inches long so it can feed on a specific orchid species that has a flower with a 12 inch deep nectar repository. The impressive Luna Moth, unfortunately not found in Arizona. Texas is as close as it gets. Monsoon Madness – July 12th We need more help starting at 5:30am (setting up tables and canopies) and for 6am to 10:30am, getting the merchandise out of the barn and helping customers. Contact Missy Sandeen, [email protected] 928-771-9856. mentor Joni Harvey 6 100 Years! Since we are Extension volunteers, thought you might want to be aware of the following: This year we are celebrating the 100th anniversary of the formation of Cooperative Extension based on the signing of the Smith-Lever Act on 8 May 1914. Following the passage of the Smith-Lever Act, the Legislature of the State of Arizona in 1915 authorized the Board of Regents of the University of Arizona, the Land Grant University in Arizona, to "organize and conduct agricultural Extension work which shall be carried on in connection with the College of Agriculture of the University of Arizona in accordance with the terms and conditions expressed in the Act of Congress aforesaid". FROM THE EDITOR: Please send or email articles and announcements to the address below. All articles must be in my hands by the 10th of the month. Short announcements (no more than 2 or 3 lines) will be accepted until the 25th. Nora Graf PO Box 3652 Camp Verde, AZ 86322 [email protected] (928) 567-6703 The College of Agriculture of course was the original name of what we now refer to as the College of Agriculture and Life Sciences or CALS. It is also interesting to note that the State legislation in 1915 also provided the capacity for county governments to appropriate funds for their county Extension programs. Collectively, the cooperative funding of federal, state and county governments led to the name "Cooperative Extension”. 100 Years of Progress The 2014 Master Gardener class presented Jeff with a Bill Murray Caddy Shack hat on the last day of class. Perhaps this will generate some new gopher removal techniques. Jeff Schalau County Director, Yavapai County Extension Agent, Agriculture & Natural Resources email: [email protected] Prescott 840 Rodeo Dr. Building C Prescott, AZ 86305 (928) 445-6590 FAX: (928) 445-6593 Camp Verde 2830 N. Commonwealth Dr Camp Verde, AZ 86322 (928) 554-8999 MG Desk (928) 554-8992 Issued in furtherance of Cooperative Extension work, acts of May 8 and June 30, 1914, in cooperation with the U.S. Department of Agriculture, Jeffrey C. Silvertooth, Associate Dean & Director, Economic Development & Extension, College of Agriculture and Life Sciences, The University of Arizona. The University of Arizona is an equal opportunity, affirmative action institution. The University does not discriminate on the basis of race, color, religion, sex, national origin, age, disability, veteran status, or sexual orientation in its programs and activities. 7 Arizona Cooperative Extension Yavapai County 840 Rodeo Dr. Building C Prescott, AZ 86305 MG NEWSLETTER Next Meeting PLEASE NOTE THE DATE AND PLACE HAVE CHANGED FOR THIS MEETING ONLY! June 11, 6:30 pm, at the Cottonwood Recreation Center Welcome for new Master Gardener Class. meet the newest graduates. Come Cottonwood Recreation Center 150 S. 6th St. Cottonwood, AZ Parking is off of Brian Mikelsen Pkwy