Spotted Wing Drosophila

Common Name: Spotted wing drosophila
Scientific Name: Drosophila suzukii
Origin: Southeast Asia

Description

Spotted wing drosophila (SWD), Drosophila suzukii, is an insect pest of economically valuable, small fruit and tree fruit crops. Known in Oregon and the Pacific Northwest since about 2009, this species now appears to be established in many fruit growing regions around the country.

Habitat

SWD is found in moderate climates between 40° and 68° Fahrenheit.

Threat

SWD impacts many fruit crops including raspberries, blackberries, blueberries, strawberries, sweet cherries, peaches, grapes and tomatoes. SWD lays eggs inside fruit, unlike other species which lay eggs on top of fruit. The larva then eat the fruit from the inside, causing it to collapse. SWD infestations can lead to up to 80% crop loss.

Management

Growers and researchers are working together to implement effective pest control strategies.

Regional Distribution

Scattered

WNY PRISM Priority

Tier 4 – Local Control

Invasive Species Priorities – Tier Chart

Pathways

SWD is spread through shipments of contaminated fruits and through natural dispersal.

Additional Resources

Drosophila suzukii distribution in NYS