In article , Ed wrote:

It turns out the culprit is a moth that's larvae destroy
the grape buds. Physically have to remove them and look
for more [supposedly destroy that infested plant]. If
anyone knows of a good moth/larvae killer safe or easily
washable, please let me know.

Ed

http://www.entomology.wisc.edu/mbcn/fea207.html
--
K.

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