National Invasive Species Information Center
U.S. Department of Agriculture

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  • Natural Enemy of Invasive, Berry-Eating Fly Found in U.S.

    • Nov 2021

    • Washington State University. College of Agricultural, Human, and Natural Resource Sciences.

    • A parasitoid wasp that is the natural enemy of a fly known as the spotted-wing drosophila could be a good friend to growers. Washington State University researchers recently confirmed the discovery of the potentially beneficial wasp in the United States for the first time. The drosophila flies cause major damage to several Washington crops, especially sweet cherries and berries. The wasp, which lays its eggs in the flies, could be a means of controlling their spread.