Biology and Management of Invasive Insect Pests in Michigan Vineyards

Research Date
Keith Mason, Steven Van Timmeren, Nikki Rothwell, Rufus Isaacs
Best Practices, Crop Quality, Pest Management
Crop Categories
Beverage Categories

Fifteen Michigan vineyards were monitored for four species of invasive moths, with no detections in 2014 or 2015. Spotted wing Drosophila (SWD) was present in all sampled locations, and the highest SWD captures occurred during harvest, while African fig fruit fly was only found at one site in 2015. Brown marmorated stink bug was not detected in vineyards. Early ripening red varieties may be the most susceptible to SWD infestation, and infestation by other Drosophila species was similar across varieties. Leaf-pulling and insecticide application reduced fruit fly numbers and sour rot incidence, but these differences were not statistically significant.

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