Drosophila pressure up this year, scientists warn

The spotted wing drosophila fruit fly could pose a greater threat to berry and cherry producers in Oregon and Washington this season, scientists are warning.

Populations were high last season and more flies likely made it through a mild winter, said Vaughn Walton, an Oregon State University Extension entomologist in Corvallis. Early blueberries and cane berries may be more susceptible this season, he said.

"A relatively warm spring enhanced their survivability and ability to lay eggs. Modeling shows there will be pressure, no question. Timing will be the key thing," Walton said.

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