One male and one female SWD were caught in a trap set on the edge of a raspberry planting in Ulster County. The traps were checked on June 11, 2020. Fruit is developing but still hard and green — not yet susceptible to egg-laying. These traps are being monitored by Jim O’Connell, Ulster County Cornell Cooperative Extension.
As fruit start to ripen, keep in mind the key tactics for SWD management:
- Mowing – to reduce humidity and niches for SWD harborage and to increase sun penetration.
- Weed management – to reduce humidity, alternate fruiting hosts and harborage and to increase sun penetration.
- Pruning – to reduce humidity and to increase sun and spray penetration.
- Monitoring – to know if SWD is present when fruit is ripening.
- Sanitation – to reduce reproduction harborage and overall SWD population.
- Cold storage – to slow or kill any eggs and larvae in harvested fruit.
Get more details at SWD Management, fruit.cornell.edu/spottedwing/management/ on Cornell Fruit Resources.
SWD Insecticide Quick Guides for NY State are found here (refresh the page to see the latest version):
- For berry crops www.hort.cornell.edu/fruit/pdfs/swd/berry-insecticides.pdf
- For stone fruit and grapes www.hort.cornell.edu/fruit/pdfs/swd/treefruit-grape-insecticides.pdf
Learn more about SWD. Check out the information on Cornell Fruit Resources Spotted Wing Drosophila, fruit.cornell.edu/spottedwing/.