Two spotted wing Drosophila (SWD) females were caught in a trap checked on July 10, 2015 from a raspberry field in Suffolk County, Long Island, as reported by Faruque Zaman, Suffolk County Cornell Cooperative Extension. The trap was placed on the edge of the field. The other trap (inside the field) in that planting did not catch any SWD. However, in the same location, 2% of 50 ripe raspberries collected the same day had evidence of egg laying by SWD.
To date, no SWD were found in traps placed in blueberries, blackberries, and grapes. All traps were baited with whole-wheat dough and apple cider vinegar was used as drowning solution. Weather information: GDD= 1025, day length= 14:52, average temperature (7/4 – 7/10)= 69.4F, total rain fall (7/4 – 7/10) = 0.19 inch.