the Current Newsletter

SONOMA COUNTY
ORCHID SOCIETY
February 2015
A California Non-Profit 501 (c) (3) Corporation
IN THIS ISSUE
1: Sergio Garcia Bio;
2: Dinner With
Speaker; February Skill
Session; Membership
Column
3: President's Corner;
Classifieds
4: Refreshment List;
Thank You
5: Update on Show
Preparations
6: AOS Corner
7: Your Orchids in
February
8: Pictures of ShowAnd-Tell Plants
9-10: Events Calendar
11: An Article on
Botritis
Please feel free to post
comments and share pictures
of your blooming orchids on
Facebook or share orchid
articles. It's an opportunity
to show off your orchids
and/or orchid growing
conditions. Press the Control
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click on the above Facebook
link.
Page 1
Our February meeting is on February 10, 2015 at 6:30 p.m.
at the Veteran's Memorial Building, 1351 Maple Avenue, SR
GUESTS WELCOME
Our February speaker is Sergio
Garcia, who will speak on
"Laelias."
When I was just a little boy, 7 or 8 years
old, my father and I were suddenly
hooked on orchids. At a home and
garden show we saw a Catasetum
pileatum and were shocked by its
beauty. When we asked people where to
buy that plant, we were pointed to the
orchid booth of one of the most
important and respected orchid growers
in Brazil's orchid history - Mr. Heitor Gloeden. Soon after that initial contact, he took us under
his wing and taught us about orchids.
As a native of São Paulo, I quickly learned about many orchid species. Those that I was first in
touch with are still my favorites - Cattleya, Laelia, Sophronitis, Oncidium, Paphiopedilum and
Vanda. I love all orchids, but these are the ones that have continued to populate my daydreams,
even when I was working on the options trading floor at the Pacific Stock Exchange!
My father and I learned about orchids together, so orchid growing became a partnership with
him. Today my dad is 85 years old, and we still spend hours discussing possible crossings,
preferred cultivars and plants that we still "need" to add to our respective collections. Still living
in Brazil, he cultivates beautiful orchids there, while I pursue my hobby here in Northern
California. I love it here. I immigrated in 1989 to Ohio. After college, my wife and I moved to
California where we put down roots, made friends, and I began cultivating orchids again.
Herman Piggors, the founder of Oak Hill Gardens, taught me how to reproduce orchids in vitro,
in a laboratory. I went on to learn more, not only in the lab, but also about planning hybrid
crossings to produce amazing orchids that are improvements over their parents. Now at
Olompali Orchids, my commercial operation, we dedicate ourselves to the improvement of
species and creation of special hybrids. We produce orchids with the objective of creating show
type plants, with potential for becoming the next award winners.
Parallel to our own production and breeding program, we partner with two multi-generational
orchid businesses in Brazil - Wenzel Orchids and AWZ Orchids. These relationships are
focused on making amazing orchids available to the American orchid world.
SCOS February 2015 Newsletter
Olompali Orchids has its greenhouses in Sonoma County in the farming area adjacent to the
City of Petaluma, California. We are located in the middle of Sonoma County's beautiful Wine
Country, not very far from Napa Valley and the city of San Francisco - under the great microclimate provided by the proximity with the Petaluma River, the Bay and under the amazing
California sunshine.
Laelia purpurata (delicata x
vinicolor)
PLEASE JOIN US FOR DINNER WITH THE SPEAKER AT Ganesha Restaurant,
535 Ross St. Santa Rosa, (Himalyan Nepalese & Indian Cuisine) at 5:00 p.m. RSVP to
Angelique Fry at 291-6029 or [email protected].
A SPECIAL SKILL SESSION
PRESENTED BY JUDY CARNEY
"How to Get Your Orchids Ready to Show"
Our Show is quickly approaching and whether you feel your orchid is "award worthy"
or not, if it is blooming we want it in our Show display. I think that any one of us who
has brought an orchid for the display was shocked when it won a ribbon or a special
award. I know I sure was. I won an award on a plant I wasn't even going to bring
because it was so "gangly".
If any of your orchids are showing that they are preparing to bloom, NOW IS THE
TIME TO BEGIN GROOMING THEM. Do you know when and how to stake? Should
you move them around?
Come to the skill session presented by Judy to get all the answers. Judy will show you
how to get your orchids to present their best face to the judges.
Editor.
MEMBERSHIP COLUMN
We presently have 87 paid members. Thank you to all
who have brought their memberships current.
Susan Anderson brought
this lovely Aerangis citrate
to the January meeting
Show and Tell.
Don't forget to wear your name badge and sign in!
Wear your name badge or make a paper name-tag at
the membership table when you enter the meeting
room. Then, sign the list at the Membership Table. At
each meeting, one name will be drawn and that person
will receive a free strip of raffle tickets.
Those who would like to order a name badge should
email Jeanne at [email protected]
Page 2
SCOS February 2015 Newsletter
President’s Corner
Dear Orchid Friends,
Spring is just around the corner. There are also a lot of orchid activities to enjoy this
time of year, too! SCOS is proud to host our Spring Show ‘A Symphony of Orchids’
at the end of March, our Annual Bus Trip on May 30th, and our Annual Repotting
Party June 27th! Mark your calendars if you haven’t already done so.
We have two more meetings before our Spring Show is here on March 28th and 29th .
There is a lot of time to groom our orchids and get those inflorescences staked. We
need a lot of blooming orchids for a spectacular display! It’s also time to get your
volunteer hats on! Our Show Chair, Lynne Murrell, needs help from everyone to make this Show successful!
There are many opportunities to volunteer. If you haven’t already done so, please sign up at the next two
meetings. This is YOUR Society and YOU can help make it a success. There are volunteer slots that need to be
filled. We also need a lot of help with set up and take down.
The Sonoma County Orchid Society has a wonderful array of speakers that enhance our monthly meetings. I
know that many of you were able to come and listen to Peter Lin give us a wonderful talk on Angraecum,
Aerangis, and Aeranthes at our January meeting. I hope that many of you enjoyed his talk as much as I did. In
February we have Sergio Garcia, who is a guru on the subject of Brazilian Laelias. He knows his topic very well
and he will be here to enlighten us. Be sure to come and hear his wonderful talk!
See you at our next meeting February 10th!
Susan
CLASSIFIEDS COLUMN
Don't forget you can get orchid supplies from Kris and Jim Foster [email protected] or 707-762-7124
Small and medium Rexius bark, Perlite, Sphagnum Moss, Orchid labels, Stakes, Charcoal
ORCHIATA BARK ($17 includes tax) AND NUTRICOTE ($3 for 1# bag) FOR SALE BY YOUR SOCIETY!
Orchiata:
Classic #9
Power #5
Power #5a
Super #7
1//4" – 3/8" chips
3/8" – 1/2" chips
1/2" – 3/4" chips
3/4" – 1" chips
Email Angelique [email protected] to Order and arrange for pick-up
DO YOU HAVE SOMETHING FOR SALE
ADVERTISE HERE – FOR FREE!!
I want to purchase a Laelia jongheana. I lost mine when my mount deteriorated and I remounted. My
lovely plant never recovered. Does anyone have a nice strong piece for sale. I'd love to hear from you.
Kathie Hile [email protected] or 585-1912. Thanks.
Page 3
SCOS February 2015 Newsletter
PLEASE CHECK THE SCHEDULE BELOW TO
SEE IF YOU ARE SCHEDULED TO BRING A
FINGER FOOD TO THE FEBRUARY MEETING.
(Anyone can bring a refreshment at any time.)
REMEMBER, if you bring a refreshment, you
receive a raffle ticket to be placed in a special
drawing for only those bringing refreshments that
evening. Winner gets first choice from the
opportunity table.
Refreshments
Please bring a refreshment if the first letter of your last name
corresponds with the monthly meeting.
T–Z
January, 2015
A–B
February
C – De
Di – Fo
Fr – H
March
April
May
J – Le
June
Ice Cream Social
July
Li – M
August
Bar-B-Q & Auction
September
No Meeting in September
N-R
October
S
November
Holiday Dinner
December
No Meeting in December
THANK YOU!
Thank you
I want to thank
ANGELIQUE FRY and
her husband, BILL, for
hosting Peter Lin when he
was in Sonoma County
visiting our Society. They went out of their way to make
sure that Peter was welcome and comfortable during his
visit. Thank you Angelique and Bill!
Thank you ANN POSSINGER for hosting the Show
meeting in December and ANGELIQUE FRY for
hosting the Show meeting in January! Susan
Change of address, email or to
unsubscribe to newsletter?
To send an address or email change, or to
unsubscribe from our newsletter, go to our Society
website at www.sonomaorchids.com and use the
"contacts" link to send an email to the membership
chair.
The true story of the 'Lost Orchid'--Cattleya labiata
This plant, perhaps more than any other, was responsible for the orchid craze that followed.
It was originally found in northern Brazil in 1818 by explorer William Swainson, who used
dormant plants as packing material in a shipment to the Glasgow Botanical Gardens. Some
of these ‘extra’ plants went to botanist George Cattley, who, surprised when the orchid
produced large, beautifully colored flowers, exhibited the plant to the public.
It was a sensation; commercial growers were eager to introduce it, but no one knew where
to find it, since the first examples were essentially undocumented packing material.
Swainson was unreachable on another expedition and his notes on his Brazil explorations
could not be found. In 1889, fifty Cattleya labiata plants were sent to a Mr. Moreau, an
entomologist and occasional orchid grower, by an explorer searching northern Brazil for
insects for export. Coincidently, grower Fredrick Sander visited Moreau as his plants were
beginning to bloom and recognized them as the long-lost Cattleya labiata. The entomologist shared the location, and
Sander sent his plant hunters out to collect them. By 1892 over 25,000 C. labiata plants were being imported annually into
Great Britain alone.
Page 4
SCOS February 2015 Newsletter
SHOW PREPARATIONS ARE GOING STRONG!
Our Show Chairs met again and updated their preparations.
We now have 13 confirmed vendors (HIP-HIP HOORAY!);
We expect to have a couple of newspaper articles and Marni Turkel will be interviewed on a
radio show;
Our show cards and posters are printed and ready to be distributed. Pass out the postcards to
your neighbors, post in grocery stores, ask grocery stores with floral centers to display a poster;
put a flyer in your car window; use your imagination;
We need items with a $50 value or more for the silent auction table;
We are pleased that our member, Nixy Rickles, will play piano for an hour each day and we
have two other musicians who will also play duet for an hour each day;
Please bring to the Show any orchids you want to sell and to the orchid boutique any orchid
and garden related items and non-orchid plants;
Our next and final SHOW MEETING is scheduled on March 8 at 2:00 p.m. at the home of
Billie MacCarththy, 4704 Hillsboro Court, Santa Rosa. Anyone who wants to participate is
welcome to attend. Everyone should RSVP to Billie at 707-303-6867 or
[email protected].
WATCH YOUR EMAIL FOR A SHOW SUPPLEMENT WHICH WILL PROVIDE INFORMATION
ON ALL ASPECTS OF OUR UPCOMING SHOW
Blooming in February
Den. Yellow Chinsai
Ryn. Daffodil
Octomeria grandiflora
Pleuro. (marthaea x
gargantia)
Page 5
Dendrochillum smithianum
Paph. Barjarmasin "Dry
Creek'
SCOS February 2015 Newsletter
AOS CORNER
Did you know the American Orchid Society has a Facebook page?
I guess I knew it, but I thought, yeah, whatever, Facebook, ok. Well today I
was looking for an article I’d seen on bacteria (haven’t found it yet) when I got
totally interested in the discussions on the AOS Facebook page! I even saw a
post from Peter Lin, our last speaker. It was wonderful already knowing
someone who was posting and knowing how well he knew his stuff.
The AOS Facebook page has a ton of photos. There are pictures of many
different species as well as pictures of problems with great discussions of
diagnoses. Many people travel or live in orchid growing lands and post pictures
of orchids in their native environment. People post from all over the world. It is
a wealth of information!
Since I’ve had my first ever orchid flower this winter, (shameless personal
plug) I’ve become interested in which orchids flower at what time of year. This
is an overwhelming task to read about. Now that I have access to the AOS
Facebook page, I see people posting their current blooming flowers WITH their
proper scientific names for all to see. By sheer osmosis, I can peruse the recent postings and pick up which
plants are blooming right now. Of course, since the posts are from all over the world, I have to determine
WHERE it is blooming right now!
Many of the pictures are beautiful examples of flowering plants that people want to show off. This is a great
way to see what a plant is supposed to look like: the color of the leaves, the roots, the bark, or no bark, the pot it
is in or how it is mounted. Just like our show and tell on the front table at each Sonoma County Orchid Society
meeting, it’s a great way to see how things should look in addition to sitting there merely jealous and awed at
someone else’s great growing skills.
Here’s a great example of an ID please? post with photo and the comments
people make.
“Maybe Cattleya Chocolate Drop?”
“Not Chocolate Drop”
“Loog Tone African Beauty or Slc. Tutankamen POP” SM/96’ “
“Has some Chocolate Drop in it for sure.”
and from Peter Lin, “probably Lc. Sagarik Wax”
I went online and searched for Lc. Sagarik Wax. It turns out the plant in question is a cross from Lc.
Summerland Girl x C. Chocolate Drop. There is more than one clonal name for Lc. Sagarik Wax types, but one
of them is Lc. Sagarik Wax 'African Beauty.' Looking at all the comments it’s fun to see how the clues fit
together into a final identification.
Oh, and in trying to write this article I had to learn how to talk about orchid names. I found that information at the
www.aos.org website in the FAQs.
If you’ve made it this far in the article, don’t forget SCOS has a facebook page too! The link is on page 1 of this
newsletter. Check it out.
Finally, don't forget to check out the AOS awards for January by going to http://www.csnjc.org/.
Page 6
SCOS February 2015 Newsletter
Your Orchids in February
based on Robert Scully articles,
courtesy of the AOS
This little beauty
is the California
newt or orangebellied newt
(Taricha torosa).
The bright
orange coloring
on its belly is to
warn predators
that it is toxic.
General Growing Tips: Spring is around the corner. Order
your potting supplies early to make sure they are not sold out
when it’s time to repot. Observe plants (including companion
plants like bromeliads) carefully for signs of disease and
insects. Avoid having heated or air-conditioned drafts blowing
directly on orchids. Don’t bring you plants out too early. It is
starting to warm but you can expect more orchid threatening
cold fronts through March.
Cattleyas: Your cattleyas are starting to rouse, even though
temperature and light conditions are not yet ideal for growth.
Continue to use dilute water soluble fertilizer on your orchids
at 1/4 to 1/8 strength. New green root tips are starting to
emerge on the unifoliates,
marking the beginning of
the spring repotting season.
Sometimes it is necessary
to split open a sheath with a
sterile blade to reduce
pressure on the emerging
buds or to allow
accumulated condensation
(possibly from fluctuating
temperatures) to dissipate.
Cymbidiums:
Stake
cymbidium
inflorescences that emerge
from the mass of foliage
on these winter-spring
bloomers. Maintain temperatures at 50 to 60F
to keep the flowers opening slowly. Dramatically higher
temperatures and hot drafts cause bud drop.
Page 7
Dendrobiums: Watch for
flower buds on
dendrobiums like Den.
lindleyi, Den. nobile
hybrids, Den. superbum
(syn. Den. anosmum) and
other deciduous species
and hybrids. These have
longer flowering when
exposed to cooler night
temperatures as the blooms open and mature. Avoid
dousing open flowers when watering. Give slightly more
water to these plants (that have been kept reasonably dry
prior to flowering) once they begin to bloom. Continue to
protect evergreen-type dendrobiums from low
temperatures that may cause leaf loss.
Phalaenopsis: Continue
to use a dilute water
soluble fertilizer on
phalaenopsis. Be careful
not to splatter the flowers
or they will stain.
Phalaenopsis exude a
honey-like substance on
the developing inflorescence that attracts scale insects.
Watch for signs of any problem that can be spot treated
before it becomes a major situation. Avoid spraying
insecticides on blossoms.
Misc.
Genera.The
Catasetinae
(catasetums,
clowesia,
cycnoches and
mormodes) have
dropped most of
their leaves and
should be kept dry.
Watch for signs of
new growth that
marks the beginning of the repotting season for the
catasetum relatives. Remove the old medium, cut off dried
roots and pot in a sphagnum moss or coco husk mix
interlayered with the time released fertilizer Dynamite but
DO NOT WATER. If you water before the new growth is
about 4 inches tall, it will probably rot. Your Ludisia discolor
is in bloom this month.
SCOS February 2015 Newsletter
WHAT LOVELY SHOW-AND-TELL PLANTS WE HAD AT OUR JANUARY MEETING!
Thank you to all who brought plants and Thank you Ann Possinger for the photos
Cattleya 'Bright Circle' (Karen Wofford)
Cattleya Laurie Lynn Westerburger
(Billie MacCarthy)
Cattleya maxima (Kathie Hile)
Page 8
Paph spicerianum BM/TIPS (Susan
Anderson)
Oncidium Heavenly Scent 'Redolence'
(Karen Wofford)
Lc. Mari 's Song HCC/AOS BS
(Susan Anderson)
Epicattleya Rene Marquez 'Flame
Thrower' (Ann Possinger)
Dendrochilum wenzelii
(Ann Possinger)
Paph. Makuli-curtisii x Maudiae
'Napa Valley' (Billie MacCarthy)
SCOS February 2015 Newsletter
UPCOMING EVENTS
February
2/10 SCOS MEETING. Previously scheduled Harvey Brenneise is unable
to speak.
We are pleased to announce that Sergio Garcia will speak on Laelias.
2/17 BOARD MEETING at the home of Kathie Hile, 4800 Pressley Road,
Santa Rosa. RSVP to Kathie at 707-585-1912 or [email protected]
2/19 - 22 Pacific Orchid Exposition, Ft. Mason Festival Pavilion, San
Francisco. Gala Benefit Preview -Thursday Feb. 19, 2015 6:30 - 10 PM;
Show and Plant Sale - February 20 - 22, 2015 Friday 10 AM - 6 PM; Saturday 9 AM - 6 PM; Sunday 10 AM - 5
PM. Tickets & Information:www.orchidsanfrancisco.org
March
3/7 – 3/8 Golden Gate Cymbidium Society Show & Sale, 10:00 a.m. – 5:00 p.m., Lakeside Park Garden
Center, 66 Bellevue Avenue, Oakland. Free Admission.
3/10 SCOS MEETING. Chris Mende of The Tiny Jungle will speak. More details to follow
3/14 – 3/15 Napa Valley Orchid Society Show & Sale. 10:00 a.m. – 4:00 p.m., Napa Senior Activity Center,
1500 Jefferson Street, Napa. Free Admission. For more info: 707-252-4050 or www.nv-os.org, or email:
[email protected]
3/8 FINAL SHOW MEETING at the home of Billie MacCarthy, 4704 Hillsboro Court, Santa Rosa. Anyone who
wants to participate is welcome to attend. Everyone should RSVP to Billie at 707-303-6867 or
[email protected].
3/21 California Orchids Spring Sale. 9:00 a.m. – 4:00 p.m. 515 Aspen Road, Bolinas. 415-868-0203
http://www.californiaorchids.com/httpdocs/events.html
3/27, 28 & 29 SCOS SHOW & SALE: "A Symphony of Orchids". CLEAR YOUR CALENDARS! Show set-up
on Friday 3/27 from 9:00 a.m. – 8:00 p.m. Please volunteer to help if you're not working that day. Show on 3/28
from 10:00 a.m. - 5:00 p.m. and 3/29 from 10:00 a.m. - 4:00 p.m. Volunteer sheets will be at the monthly
meetings. Watch your newsletter for more details
April
4/14 SCOS MEETING. Dennis Olivas will present "Orchids 101". A Great talk for those new to orchid growing!
4/18 Gold Coast Cymbidium Growers Orchid Show & Sale, 10:00 a.m – 4:00 p.m., Redwood City
Community Activities Building, 1400 Roosevelt Avenue, Redwood City.
www.GoldCoastCymbidiumGrowers.com
May
5/12 SCOS MEETING. May's speaker will be Janet Lamborn from Agdia,Inc./Adgia Testing Services. Janet's
presentation will be on Orchid viruses and how to test for them. Members are encouraged to bring in plants with
suspected symptoms to be tested.
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SCOS February 2015 Newsletter
5/30 SCOS BUS TRIP. "Gold and Wine Country Tour". We will be visiting Alan Koch's Gold Country Orchids in
Lincoln. Jeff Tyler of Insitu Orchids and Dave Sorokowski of Paph Paradise will also be meeting with us at
Alan's Nursery. We will then travel to Lodi for a tour of I-Hsin Nursery and perhaps we will also have an
opportunity to visit one of Lodi's many fine wineries during our lunch stop. (Other orchid related stops are still
being investigated). This will be a great trip – not to be missed.
The POE is the premier Orchid show on the west
coast. There are many fabulous vendors attending
from all over the world. The San Francisco Orchid
Club is offering a discount to all AOS members for
admission and they have secured a fabulous room
rate. The venue is the Holiday Inn, Fisherman's
Wharf. Reservations must be made before January
30 to get the special rate. Call 1-800-942-7348 and
make sure to say that you are asking for the POE or
Pacific Orchid Exposition rate. The rate is $149/night
and is good for stays from February 18 to
February 23, 2015.
Check out their website for complete details:
https://www.eventbrite.com/e/2015-pacific-orchidexposition-the-thrill-of-discovery-tickets12481363093?discount=AOS15
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SCOS February 2015 Newsletter
Botrytis
By Susan Jones
Take Precautions Now To Prevent This Fungus from Marring Winter Flowers. A fungal disease affecting many
different types of herbaceous and woody plants, botrytis strikes during cool, damp weather in areas where air
circulation is poor. On orchids, the disease, caused by Botrytis cinerea, causes unsightly brown spotting of blooms. The
fungus most often affects Phalaenopsis and Cattleyas, but may be found in a wide range of orchid genera. Older
flowers are highly susceptible to infection.
It is a shame to wait all year for flowers and then have them ruined by
Botryris. The fungus is prevalent during cool, damp spells of winter.
Life Cycle. The fungus winters primarily on dead and dying plant material, and
begins producing and dispersing spores during cool, damp weather in the spring or
autumn. Damp conditions, rapidly rising humidity or disturbing infected plants may
release spores into the surrounding growing area. Spores can be distributed by
wind, rain or any mechanical action. Temperatures in the mid 60's to low 70's F
(18–23 C), and wet plant surfaces or ambient humidity of at least 92 percent, are
ideal conditions. The fungus can proliferate very quickly, infecting healthy plant
tissue in as little as 14 hours.
Symptoms. Botrytis manifests as small, brown necrotic spots on orchid flowers. Those spots may increase in size and
number as the infection progresses, and may be surrounded by a pale pink margin. In severe infections, the spots can
coalesce, and gray, webbed fungal growth (mycelium) may become visible.
If conditions are proper, Botrytis spores can quickly spread from the lesions it
makes.
Prevention. The best form of control for botrytis is prevention, which involves
sanitation, air circulation and careful watering.
burying of affected plant tissue.
Sanitation. Inspect the growing area for conditions favorable to botrytis. As this
pathogen thrives and winters over on dead and dying plant material, remove any plant
debris, spent or fallen flowers and leaves from the growing area to reduce the
possibility of spreading the fungus. Some growers recommend removing and disposing
of all affected flowers to help prevent the spread of the fungus, and even burning or
Air Circulation. Keep plenty of fresh air moving through the growing area and around plants at all times. A stagnant,
damp environment with inadequate air circulation promotes the growth of botrytis. Good air circulation is a necessity to
prevent fungal infections year round, but most especially when plants are in bloom. Increasing the ambient
temperature and air movement and decreasing the humidity during cool, damp weather will help eliminate any excess
moisture on plant tissue, thus minimizing the chances of infection. In most areas, orchids grown outdoors already have
the necessary air movement in their environment.
Watering. When watering, avoid wetting the plant and its flowers, if possible. Water that remains on petals or leaves
after a rain or watering encourages fungal growth. Watering early in the day helps ensure that the plant and its flowers
will be dry by nightfall. Never allow blooms or foliage to remain wet overnight.
Companion plants may host a variety of pests and diseases that also affect orchids, including botrytis. Inspect any
companion plants in the growing area for signs of the fungus. Some plants susceptible to botrytis include African
violets, amaryllis, Amazon lily, azaleas, begonias, cacti, caladium, calla lily, camellias, castor beans, chrysanthemums,
cinerarias, coleus, cornflowers, dahlias, dracaenas, dusty millers, ferns, fig, fuchsias, gardenias, gloxinias, heliotrope,
passion flower and poinsettias.
Finally, isolate any new plants for a minimum of two weeks before admitting them to your growing area and into your
orchid collection. During the isolation period, keep a close eye on the new acquisition for signs of any pest or disease
that could be spread to other plants.
Control. Once the botrytis spotting occurs, there is no removing it — only preventing future occurrences. A fungicide
such as thiphanate methyl, iprodione, vinclozolin or Physan can be applied as needed to prevent further outbreaks.
Since the infection primarily affects flower petals, many growers do not recommend the use of fungicides. As with any
chemical, always use it in strict compliance with the manufacturer’s instruction
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SCOS February 2015 Newsletter
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SCOS February 2015 Newsletter