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Phomopsis cane in grapes

Posted by poolecw Georgia 7b (My Page) on
Thu, May 22, 14 at 11:06

One of my 3 year old Concord vines has develped phomopsis cane on many of its green shoots. Would Captan work for this issue? Also, clusters are starting to flower on this vine. Should I not spray at this point or would it be ok to do so? Finally, should I spray for phomopsis cane every year on all my vines as a preventative measure?

Thanks!


Follow-Up Postings:

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RE: Phomopsis cane in grapes

I'm not an expert but I do have about 10 vines and most of them get phomopsis cane on the shoots every spring (well, for the first two years I've had the grape vines). I use a Captan 50 wp mix and the fungus clears up after one spray treatment. Next year I'm going to try a dormant spray of lime sulfur to see if that helps prevent the fungus because I'd rather not use the chemicals if possible.


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RE: Phomopsis cane in grapes

I"m going to try the lime sulfur treatment next year as well. I ended up spraying with Captan this weekend. I"m probably going to prune out all the affected shoots.


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