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The week of July 8, two female SWD were captured in a trap containing a vinegar drowning solution with yeast-bait located just outside a pome and stone fruit orchard in Columbia County, as reported by Mike Fargione, Extension Educator, Eastern NY Horticulture Program, Cornell Cooperative Extension. Cherry harvest is nearing or at completion. (Accumulated GDD 1193, day length 14:52)

Two SWD males, no females, were caught in a trap collected by Johanna Elsensohn, Research Support Specialist, Greg Loeb's lab, on July 5, 2013 in Yates County. The trap was located in the interior of a blueberry plantation. Nearby traps in sweet cherries and the wooded edge did not catch any SWD. (Accumulated GDD 1001, day length 15:09)

Two female SWD caught in Ulster County as reported on June 24, 2013, by Jim O’Connell, Eastern NY Horticulture Team, Cornell Cooperative Extension. One was caught in a trap placed in a blackberry plantation, the other in a trap in the adjacent woods. (Accumulated GDD 834, day length 15:09)

Five female and two male spotted wing drosophila (SWD) were caught in three traps the week of June 12-19, 2013, in eastern Long Island as reported by Faruque U. Zaman, Cornell Cooperative Extension of Suffolk County, Long Island Horticultural Research and Extension Center. Two traps were in a raspberry plantation at early ripening and one trap was 75 ft. inside the adjacent wooded area. No SWD oviposition or larvae were found after checking ripe raspberry samples from the plantation. (Accumulated GDD 650, day length 15:07)

Male spotted wing drosophila (SWD) showing the characteristic spot on each wing as viewed with a dissecting microscope and transmitted illumination. Male SWD flies have two dark bands on each foreleg made up of black comb-like structures (inset).

On 17 June, 2013, 4 female and 1 male SWD were collected from two apple cider vinegar traps in Orange County, NY and identified by Peter Jentsch, entomologist, Hudson Valley Laboratory, Cornell University. The male was caught in the trap on the wooded edge, the females were caught in traps placed in a raspberry planting with fruit starting to show color. Fruit will be collected on June 21 and assessed for SWD injury level. (Accumulated GDD 640, day length 15:05)

The first reported SWD has been found in the NY trap network - one female in Ontario County. The trap was collected June 11, 2013 and is part of Greg Loeb's trap network. The NY trap network consists of ~230 traps. As of today, no other trap locations have caught SWD, so this find represents ~0.4% of traps catching SWD. The trap consisted of a bait cup containing whole wheat fermenting dough floating in a drowning solution of (9 parts) apple cider vinegar, (1 part) ethanol, (drop) soap in a clear deli cup. The trap was set a few feet into the wooded edge of a blueberry field. Blueberries in Western NY are starting to color - green with a hint of pink/purple. (554 accumulated GDD, day length 15:14)

Official SWD confirmed 2011 in NY
A female spotted wing drosophila (SWD), serrated ovipositor in the inset. This particular female was collected in 2011 and sent to USDA SEL for confirmation by Faruque Zaman and Dan Gilrein, Suffolk County Cornell Cooperative Extension, Long Island Horticultural Research and Extension Lab. She was the first officially confirmed SWD from NY in 2011.



Scientists at Cornell University have set traps in NY to monitor for the invasive spotted wing drosophila (SWD). As of June 7, 2013 no SWD have been found in any traps. We are posting data directly into a NY distribution map that is linked on Cornell Fruit Resources and NYS IPM websites. The Cornell University SWD team includes Art Agnello, Greg Loeb, Peter Jentsch and me. The Cornell Cooperative Extension team includes Amy Ivy, Bernie Armata, Betsy Burgeson, Dan Gilrein, Dave Thorp, Debbie Breth, Emily Cook, Faruque Zaman, Ginny Carlberg, Jim O'Connell, Jeff Miller, Kat Loeck, Kevin Iungerman, Laura McDermott, Mike Fargione, Paul Hetzler, Sharon Bachman, and Stephanie Mehlenbacher.

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