Spotted Wing Drosophila

Pest: Spotted wing drosophila (Drosophila suzukii)

Pest Type: Insect Pest

Major Identifying Features: Resemble other fruit flies, that feed on fermenting fruit, spotted wing drosophila attacks unripe fruit, black spots toward the end of their wings

Life Cycle: Can have up to 10 generations per year, life cycle is very short ranging from one to several weeks,

Pest Rating: Moderate

Management Rating: Moderate

Host/Season/Outbreak Information: SWD are most active in fall and spring, when temperatures are between 60°F and 80°F

Damage Information: SWD attack any fruit, females lay eggs in small hole inside fruit with 1-3 eggs in each hole, feeding maggots cause brown, soft and sunken areas, can cause a secondary infection with bacteria or fungi

Management Options: Cultural control with proper sanitation, netting, early harvesting, trapping, and monitoring

Sources:

http://www.ipm.ucanr.edu

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