Knowledgebase

Grape flea beetle #867072

Asked May 05, 2024, 8:46 AM EDT

I have an arbor covered with primarily beta grapes. Last year the emerging grape buds were decimated by grape flea beetle. I don’t see evidence so far this year, but if/when I do, what is the best treatment that is also safe for the grapes?

Washington County Minnesota

Expert Response

Great that you are closely observing the vines.  Grape vine flea beetles do the most damage early as the buds swell. Treatments are only effective early.  
The following website lists effective treatments.  When using any treatment it is important to pay attention to the days before harvest statements to ensure safety of your crop for consumption. Since you had significant damage you want to treat as soon as you see the insects.

https://extension.umn.edu/yard-and-garden-insects/flea-beetles
MaryKay, Master Gardener, Tree Care Advisor Replied May 05, 2024, 9:18 AM EDT

Loading ...