
Dubyadee
Puyallup, Washington, USA
248 Posts
(Offline)
I found plum leaves in North Dakota with odd growths on them. The growths appear as though they are some sort of cocoon but are actually deformed growth caused by the tree’s reaction to gall mites feeding on the leaves. I have seen this to a lesser degree in my own yard in Washington.

Dubyadee
Puyallup, Washington, USA
248 Posts
(Offline)
I found a new pest on my Seigerebe grape leaves. I believe that they are grape leaf blister mites. The top surface of the leaves have raised blisters and the bottom side has silk patches, like spider egg sacks. I do not see any of these pests on my seedless table grapes - interlaken, glenora, etc.
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