May 6, 2011 | View All Issues
We found GMB on the leaves and the base of the shoots.
We also started seeing a sizeable population of predatory mites at our Oak Knoll site this week.
For growers concerned with GMB as a vector of grapevine leafroll virus, this is the first treatment window for insecticide applications. (This may not include Movento applications that require an expanded canopy for translocation).
Pesticide applications may disrupt natural enemies that attack GMB. Unwarranted applications should be avoided to conserve natural enemy populations.
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