Spotted Wing Drosophila

Spotted Wing Drosophila Alert — October 3, 2025

Last Issue of the 2025 Season David Handley, Vegetable and Small Fruit Specialist; James Dill, Pest Management Specialist, Phil Fanning, Assistant Professor of Agricultural Entomology, Christina Howard, Maine New Farmers Project Manager We have retired all of the trapping locations for our spotted wing drosophila monitoring program over the past two weeks. The numbers reported […]

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Spotted Wing Drosophila Alert — September 12, 2025

David Handley, Vegetable and Small Fruit Specialist; James Dill, Pest Management Specialist, Phil Fanning, Assistant Professor of Agricultural Entomology, Christina Howard, Maine New Farmers Project Manager Spotted wing drosophila fruit fly trap counts remain fairly stable and moderate at this time. Sites that are no longer spraying because harvest is complete are seeing higher numbers […]

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Spotted Wing Drosophila Alert — September 5, 2025

David Handley, Vegetable and Small Fruit Specialist; James Dill, Pest Management Specialist, Phil Fanning, Assistant Professor of Agricultural Entomology, Christina Howard, Maine New Farmers Project Manager Spotted wing drosophila fruit fly trap counts were little changed from last week. Sites that are no longer spraying because harvest is complete are seeing higher numbers than sites […]

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Spotted Wing Drosophila Alert — August 29, 2025

David Handley, Vegetable and Small Fruit Specialist; James Dill, Pest Management Specialist, Phil Fanning, Assistant Professor of Agricultural Entomology, Christina Howard, Maine New Farmers Project Manager Spotted wing drosophila fruit fly numbers are rising at all sites this week. Some of the increase may be due to growers no longer spraying because they have finished […]

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Spotted Wing Drosophila Alert — August 22, 2025

David Handley, Vegetable and Small Fruit Specialist; James Dill, Pest Management Specialist, Phil Fanning, Assistant Professor of Agricultural Entomology, Christina Howard, Maine New Farmers Project Manager Spotted wing drosophila fruit fly numbers are rising at most of our trapping sites this week, although the increases are relatively moderate for this point in the season (see […]

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Spotted Wing Drosophila Alert — August 15, 2025

David Handley, Vegetable and Small Fruit Specialist; James Dill, Pest Management Specialist, Phil Fanning, Assistant Professor of Agricultural Entomology, Christina Howard, Maine New Farmers Project Manager Spotted wing drosophila fruit fly numbers remained relatively stable at our trapping sites this week with no big increases or decreases (see table below). Continued hot, dry conditions and […]

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Spotted Wing Drosophila Alert — August 8, 2025

David Handley, Vegetable and Small Fruit Specialist; James Dill, Pest Management Specialist, Phil Fanning, Assistant Professor of Agricultural Entomology, Christina Howard, Maine New Farmers Project Manager Spotted wing drosophila fruit fly numbers continue to increase at our trapping sites this week (see table below). Populations are over the recommended spray threshold (4/trap/week) at all sites. […]

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Spotted Wing Drosophila Alert — August 1, 2025

David Handley, Vegetable and Small Fruit Specialist; James Dill, Pest Management Specialist, Phil Fanning, Assistant Professor of Agricultural Entomology, Christina Howard, Maine New Farmers Project Manager Spotted wing drosophila fruit fly numbers have increased at most our trapping sites in Southern Maine this week (see table below). Populations are over the recommended spray threshold (4/ […]

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Spotted Wing Drosophila Alert — July 25, 2025

David Handley, Vegetable and Small Fruit Specialist; James Dill, Pest Management Specialist, Phil Fanning, Assistant Professor of Agricultural Entomology, Christina Howard, Maine New Farmers Project Manager We continue to capture spotted wing drosophila fruit flies at our trapping sites in Southern Maine (see table below) and wild blueberry fields in the coastal and midstate regions. […]

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Spotted Wing Drosophila Alert — July 18, 2025

David Handley, Vegetable and Small Fruit Specialist; James Dill, Pest Management Specialist, Phil Fanning, Assistant Professor of Agricultural Entomology, Christina Howard, Maine New Farmers Project Manager We are now catching spotted wing drosophila fruit flies at all of our trapping sites in Southern Maine (see table below) and wild blueberry fields in the coastal and […]

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