Genus species: Drosophila suzukii
The spotted wing Drosophila (SWD) is a vinegar or fruit fly of East Asian origin. It made its way into New York by 2011. Today, it has spread throughout most of the continental US. It can directly infest the fruit of many plants, but is most attracted to raspberries, blackberries, blueberries, and other late-season, soft-flesh fruits — cultivated and wild.
SWD deserves notice because, unlike her relatives, which lay eggs on over-ripe or rotting fruit, she can lay eggs inside fresh fruit, often before harvest. After only a few days, the fruit skin becomes dimpled or wrinkled, forming craters in the fruit. Without control measures, late season raspberries, blackberries and blueberries can suffer upwards of 80% crop loss.
- Spotted Wing Drosophila Working Group, NE IPM:
- Getting Ready for Spotted Wing Drosophila: Understanding Risks for Small Fruit Crops and Current Management Options – webcast with Dr. Greg Loeb, Cornell University
- Spotted Wing Drosophila – Michigan State University
- Spotted Wing Drosophila – Oregon State University
- SWD Resource Database from the Northeastern IPM Center
- PA IPM, Spotted Wing Drosophila, Individual sections in PDF format:
- This “Ninja” Fruit Fly Cuts into Perfect Fruits – Spotted Wing Drosophila (2012 Fruit Quarterly v. 20-3)
- Spotted Wing Drosophila – General information, NC Small Fruit & Specialty Crop IPM
- Spotted Wing Drosophila (SWD), New Hampshire Department of Agriculture, Markets & Food
- Finger Lakes SWD monitoring videos – See — and learn how to ID — what the Loeb Lab is finding in their SWD traps. More info.
- Spotted Wing Drosophila – Info from the New York State IPM Program.
- SWD ID Video – You-tube video from Oregon State University on how to identify SWD.
- SWD Management – NY product tables for berry crops – including blueberries, raspberries and blackberries, and strawberries. NY product tables for stone fruit and grapes.
- Special SWD issue of New York Berry News [2013-07-29]
- Evaluation of Insect Exclusion and Mass Trapping as Cultural Controls of Spotted Wing Drosophila in Organic Blueberry Production – New York Fruit Quarterly, Spring 2014.
- How do I manage Spotted Wing Drosophila (SWD) in my garden?
- First catch in Washington County
Four female SWD were caught in two traps set on the edge of a blueberry planting in Washington County. Traps were checked on June 17, 2019 by Laura McDermott, berry and vegetable specialist on the CCE Eastern NY Commercial Horticulture Program. Fruit in the planting is sizing up beautifully, but is still hard and green ...continue reading "First catch in Washington County"
- First catch in Suffolk County
One female SWD was caught in a trap set on the edge of a blueberry planting in Suffolk County. Traps were checked on June 13, 2019 by Faurque Zaman, CCE Association of Suffolk County and Long Island Horticultural Research and Extension Center. Numbers of SWD being caught are still relatively low and fruit is not ...continue reading "First catch in Suffolk County"
- Sustained catch in Ulster County
Four SWD — two males and two females (on a double date in the Scentry trap?) were caught on June 12, 2019 in traps set within a raspberry planting in Ulster County. Also, a single male caught in another site in Ulster, in blueberry that day. These traps are being monitored by Jim O'Connell, CCE ...continue reading "Sustained catch in Ulster County"
- First catch in Chemung County
One female SWD was caught in a trap set on the edge of a blueberry planting. Traps were checked on June 12, 2019 by Shona Ort, CCE Association of Chemung County. Blueberry fruit have set in many locations across NY. Most fruit are still green and too hard for SWD to lay eggs in. Keep ...continue reading "First catch in Chemung County"
- Sustained catch in Putnam County
A single SWD female was caught in traps checked on Monday, June 10, 2019. These traps are being monitored by Michael Principe, CCE Master Gardener Program in Putnam County for the Eastern NY Commercial Horticulture Program. Because numbers are so low at this site, we're going to check again for another week or so to ...continue reading "Sustained catch in Putnam County"
- Sustained catch in Albany County
Twelve SWD were caught in traps set in and on the edge of a raspberry planting in Albany County. Traps were checked on Monday, June 10, 2019 by Natasha Field, CCE Eastern NY Commercial Horticulture Program. This uptick in numbers is of great concern for growers of at-risk fruit: strawberry raspberry blackberry blueberry elderberry sweet ...continue reading "Sustained catch in Albany County"
- IPM guides for SWD now available
IPM guides for SWD in brambles and blueberries are now available — just in time for the 2019 growing season! The early arrival of SWD in New York will surely motivate you to review the information in these IPM guides. Download them from the Northeastern IPM Center website, provided below, or via the SWD IPM ...continue reading "IPM guides for SWD now available"
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