Grape growers learn to identify spotted wing drosophila at a Washington State Grape Society meeting. Photo by Melissa Hansen Preliminary tests conducted last fall indicate that Washington State grapes might not be attractive to the spotted wing drosophila, an invasive new pest that has popped up across much of U.S. agriculture in the last few years. Drosophila suzukii, also called spotted wing drosophila, was first identified by Japanese scientists in 1939. Though the tiny fruit fly has spent the last 30 years thriving in Hawaii, it was first detected in California in 2008 in raspberries and subsequently found in Oregon […]