Seven females and three males were caught in an apple cider vinegar trap at a farm in Rensselaer county this week. Traps were collected on July 13, 2015 and are with the lure comparison research that Greg Loeb, Department of Entomology, Cornell University is leading. Traps are being serviced by Laura McDermott, Eastern NY Commercial Horticulture Program. The traps were in set in an Amelanchier hedgerow near strawberries. Amelanchier species are commonly known as shadbush, shadwood or shadblow, serviceberry, sarvisberry or sarvis, juneberry, saskatoon, wild pear, sugarplum or wild-plum, and chuckley pear. In nature, this genus hybridizes readily and species distinctions can be difficult.
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.
Five male SWD were caught in a trap in Erie County set on the edge of a summer raspberry planting. This trap is being monitored by Sharon Bachman, Erie County Cornell Cooperative Extension, with help from the summer staff from the WNY Partnership for Regional Invasive Species Management. (GDD = 1150, day length = 15:04)
Two female SWD were caught in traps collected on July 9, 2015 in Seneca County. One SWD in a trap for the network (whole wheat dough lure with apple cider vinegar drowning solution) and one caught in a Scentry trap. Traps were on the edge of a blueberry planting. (GDD = 1195, day length = 15:04)
Two female SWD were caught in traps on the edge of a summer raspberry planting. One each were caught in a Scentry trap and a standard Trece trap as part of a research project comparing traps and lures. Both traps use unscented soapy water for the drowning solution. Traps were collected on July 7, 2015 by Gabe Brind'Amour in Greg Loeb's entomology program at Cornell University.
A single female SWD was caught in a whole wheat dough with apple cider vinegar trap (SWD network) and another single female was caught in a Scentry trap with combination lure (research project). These traps are both on the edge of a blueberry planting in Ontario County. Traps were collected on 7/7/15 by Gabe Brind'Amour in Greg Loeb's Small Fruit Entomology Program, NYS Ag Experiment Station, Cornell University.
A single female SWD was caught in a trap collected on July 8, 2015 from within a summer raspberry planting in Genesee County. Master Gardener David Russell and Extension Educator Janice Beglinger of Genesee County Cornell Cooperative Extension are monitoring the traps at this location. Photos of the female ovipositor were sent in to verify their SWD identification. (GDD = 1038, day length = 15:08)
Three SWD, two females and one male, were caught in traps set in a summer raspberry planting in Schuyler County that were checked on July 2, 2015. This site is part of the trap network, being monitored by Gabrielle (Gabe) Brind'Amour, technician in Greg Loeb's small fruit entomology program, Cornell University. At this location, they also have other traps set out for research purposes, and SWD was also caught in several of those traps. It is time to put an SWD management plan into place, if you have susceptible, ripe fruit at your farm.
One male SWD was caught in a trap collected on July 2, 2015 in Cayuga County. The trap was set on the edge of a blueberry planting adjacent to woods by Juliet Carroll, Fruit IPM Program, and is being serviced by summer technician Tyler Sollenne. The blueberry planting is located in the northern part of Cayuga County. Three other traps at the site contained no SWD.
Because of the early arrival of SWD, blueberries should be protected from infestation by careful planning of an insecticide program as fruit begin to ripen. Other steps to manage SWD include removal from the planting of overripe fruit in which SWD larvae could be developing, mowing and weed control to reduce humidity and shading in the planting—conditions favorable for SWD. (GDD = 999, day length = 15:15)
A female SWD was caught in Wayne County on July 2, 2015, marking a second, consecutive week of SWD trap capture at this location. Traps are set in summer raspberries and serviced by the Fruit IPM Program. Earliest fruit are ripe and more are coming on for a bountiful season. Protecting the crop with an insecticide program at this location will be essential.
If you are monitoring traps at your farm, it will be best to check traps daily. This way there will be fewer non-target fruit flies and other insects in your traps. Tips for identifying SWD and infested fruit are found on the SWD webpages on Cornell Fruit Resources, www.fruit.cornell.edu.