Let me introduce myself. My name is Kathy and I assist Bonnie Joywith the 80-vine Blossom Ridge Vineyards. I do the things Bonnie Joy does not like to do…like spraying the vines.
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We have tried to spray with organic compounds and are not having much success this year. We are currently dealing with some black rot and anthracnose. We have, thus far, used GreenCure. I have convinced Bonnie Joy that we must use the “dreaded” chemicals she wants to avoid if we are to have the healthy vines we need to produce the best quality grapes we can for the great wine she hopes to make. We expect to have our first harvest in 2011.
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I have contacted our county extension agent who, because there are very few grapevines in our county, must depend on the information he receives from Dr. Bruce Bordelon of <?
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LACE><ST1
LACENAME>Purdue</ST1
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LACE>. Responding to another grower with the same issues we are having at Blossom Ridge Vineyards, Dr. Bordelon wrote:
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“It’s too late this season to do anything about the damage. The berries will become resistant to further infection soon if not already. Next year, he needs to follow the guidelines in ID-146 Controlling Pests in the Home Fruit Planting. <ST1
LACE><ST1:CITY>Mr.</ST1:CITY> <ST1:STATE>Conn</ST1:STATE></ST1
LACE> was correct about the product of choice...it’s Immunox with the active ingredient myclobutanil. It is systemic and much more effective against black rot than the more commonly applied Captan. With all the rain this year, I’ve seen lots of black rot, anthracnose, Phomopsis, and downy mildew.”
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The link to ID-146 is
http://extension.entm.purdue.edu/publications/ID-146.pdf and the grape chart is #11.<O
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We had <ST1:METRICCoNVERTER ProductID="3”">3”</ST1:METRICCoNVERTER> of rain in March, <ST1:METRICCoNVERTER ProductID="5”">5”</ST1:METRICCoNVERTER> in April, <ST1:METRICCoNVERTER ProductID="6.6”">6.6”</ST1:METRICCoNVERTER> in May, <ST1:METRICCoNVERTER ProductID="4”">4”</ST1:METRICCoNVERTER> in June. And we have had a typical <ST1
LACE>Midwest</ST1
LACE> summer of high heat and high humidity.
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Here are my questions:
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1) Has anyone had any success using GreenCure?
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2) Manzate Pro-Stick looks like it would take care of just about anything with a couple of exceptions. I could use it and switch to Immunox when it gets too close to harvest to use the Manzate. The thing I like about Immunox is that it can be used up until two weeks of harvest and has a 12-hour re-entry period. It is also available just about anywhere. Does this seem like a good plan?
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3) There is also a product called Maximum that contains both mancozeb and myclobutanil. Anyone familiar with that product?
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I will be spraying this year as Al suggested in another threadand then will follow a strictspraying schedule next year. I will also have a soil analysis done.
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Comments appreciated.<O
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