What Causes Bumps and Shrivelled Leaves on Grape Vine

This may be a muscadine vine. It is only on one tendril right now. The bumps are the same color as the leaves.

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1 Comment To "What Causes Bumps and Shrivelled Leaves on Grape Vine"

#1 Comment By Heather On 10/02/2011 @ 2:58 pm

This is a leaf gall caused by Grape Phylloxera. It is a holding sac of sorts for a type of aphid. This article will help you:
http://www.ipm.ucdavis.edu/PMG/r302300811.html ^[1]

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[1] http://www.ipm.ucdavis.edu/PMG/r302300811.html: http://www.ipm.ucdavis.edu/PMG/r302300811.html

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