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Exclusion Netting Helps Prevent Spotted Wing Drosophila in Berries

New York berry growers collaborating with Cornell University researchers are reporting success in using exclusion netting to prevent spotted wing drosophila (SWD) infestations. A paper published in Crop Protection documents that in testing over the past few years, early-season placement of exclusion netting was effective in protecting raspberries from SWD. One grower has avoided pesticide use for six years, with less than 1% incidence of SWD. She notes that the cost of the exclusion netting is lower than the cost of pesticides. The netting is attached to a frame that surrounds the berry crop. Producers must be prepared to deal with infestations that can occur from workers moving in and out of the exclusion.