A single male was caught on a red sticky card trap set on the edge of a summer raspberry planting in Albany County checked on June 21, 2021. Three other traps at the site caught zero SWD. These traps are being monitored by Natasha Field, Eastern NY Commercial Horticulture Program, CCE.
Summer raspberry harvests are getting underway. Monitoring SWD in this crop can be very useful, because fruit may be harvested before SWD is caught or builds up to high numbers. Thus saving spray applications. However, raspberries are very susceptible to SWD infestation and once even low numbers of SWD are consistently being caught, this signals the crop is at risk of infestation. Clean picking may prove effective when trap catch numbers remain in the single digits.
Here's a recap of SWD management in brambles that will prove helpful to get you in the right frame of mind while we still have low SWD trap catch.
SWD Management in Raspberry and Blackberry
Read this blog, Managing SWD in raspberries and blackberries at blogs.cornell.edu/swd1/2019/07/17/managing-swd-in-raspberries-blackberries/
Spotted Wing Drosophila IPM in Raspberries and Blackberries from the NE IPM Center SWD Working Group, neipmc.org/go/swdpub1
Learn more about SWD. Knowledge is power! Check out the information on Cornell Fruit Resources Spotted Wing Drosophila, fruit.cornell.edu/spottedwing/.