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)
Rhode Island, Connecticut, Massachusetts, and lower Hudson Valley of New York are reporting evidence of SWD in fruit and sustained and increased numbers of SWD in traps. In Rhode Island, Heather Faubert reports rearing SWD from raspberries that were collected on June 24 and weekly trap catch on July 8 of 135 SWD in 3 traps set in raspberries and 14 SWD in two traps set in blueberries. In Connecticut, on July 6 Mary Conklin reports SWD found in raspberries and in traps set in blueberries and brambles. In Massachusetts, Sonia Schloemann reports modest increases in trap captures, from 2 females and 1 male the week of June 24th to 6 females and 1 male the week of July 1st with 20% of trap locations catching SWD. Most traps are in border areas of blueberry or raspberry and one capture was from a trap in sweet cherry. In the lower Hudson Valley of NY, Peter Jentsch reports observations of fruit fly oviposition in raspberry fruit (2 out of 25, 8%, fruit affected) in a sprayed planting and oviposition in sweet cherry fruit (14 out of 20, 70%, fruit affected) in an unsprayed orchard. Although SWD identity cannot be confirmed from egg morphology, it is probable this is from SWD. Time to consider management options.
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)