Spotted Wing Drosophila

Spotted Wing Drosophila Alert: July 21, 2017

Click on photos to enlarge. David Handley, Vegetable and Small Fruit Specialist; James Dill, Pest Management Specialist; Frank Drummond, Professor of Insect Ecology/Entomology There has been an increase in spotted wing drosophila activity at most trapping sites this week (see table below). Reports from throughout the northeast suggest a similar trend. This is significantly earlier […]

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Spotted Wing Drosophila Alert: July 17, 2017

Click on photos to enlarge. David Handley, Vegetable and Small Fruit Specialist; James Dill, Pest Management Specialist; Frank Drummond, Professor of Insect Ecology/Entomology We have found numerous spotted wing drosophila (SWD) fruit flies in raspberry and highbush blueberry plantings in Maine over the past week, in nearly every location that we have set up traps […]

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Spotted Wing Drosophila Update: November 4, 2016

Click on photo to enlarge. David Handley, Vegetable and Small Fruit Specialist; James Dill, Pest Management Specialist; Frank Drummond, Professor of Insect Ecology/Entomology Warmer temperatures and some rain have resulted in an upsurge of spotted wing drosophila trap catches in some locations, while numbers continued a downward trend in others. Once the weather settles into […]

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Spotted Wing Drosophila Update: October 28, 2016

Click on photo to enlarge. David Handley, Vegetable and Small Fruit Specialist; James Dill, Pest Management Specialist; Frank Drummond, Professor of Insect Ecology/Entomology Spotted wing drosophila trap catches continue a downward trend in most locations. A lack of hard frosts or consistently low temperatures over several days has prevented a sudden drop in numbers such […]

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Spotted Wing Drosophila Update: October 14, 2016

Click on photo to enlarge. David Handley, Vegetable and Small Fruit Specialist; James Dill, Pest Management Specialist; Frank Drummond, Professor of Insect Ecology/Entomology Spotted wing drosophila trap catches appear to be on a downward trend in most locations this week, as factors such as frost, drought and declining food supplies may be taking their toll. […]

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Spotted Wing Drosophila Update: October 6, 2016

Click on photo to enlarge. David Handley, Vegetable and Small Fruit Specialist; James Dill, Pest Management Specialist; Frank Drummond, Professor of Insect Ecology/Entomology Spotted wing drosophila trap catches remained high this week, although numbers varied from field to field, being higher at some sites but lower at others. Larvae and flies are still plentiful in […]

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Spotted Wing Drosophila Update: September 30, 2016

Click on photo to enlarge. David Handley, Vegetable and Small Fruit Specialist; James Dill, Pest Management Specialist; Frank Drummond, Professor of Insect Ecology/Entomology Spotted wing drosophila trap catch numbers rose significantly in many locations this week, resulting in the highest counts of the season thus far. Growers with high populations are finding that a seven-day […]

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Spotted Wing Drosophila Update: September 23, 2016

Click on photo to enlarge. David Handley, Vegetable and Small Fruit Specialist; James Dill, Pest Management Specialist; Frank Drummond, Professor of Insect Ecology/Entomology Spotted wing drosophila trap catch numbers remained very high this week at all of our trapping sites. However, growers report that harvested fruit (raspberries and blueberries) are clean when they have maintained […]

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Spotted Wing Drosophila Update: September 15, 2016

Click on photo to enlarge. David Handley, Vegetable and Small Fruit Specialist; James Dill, Pest Management Specialist; Frank Drummond, Professor of Insect Ecology/Entomology Spotted wing drosophila trap catch numbers were again some of the highest numbers of the season this week, but there were also noticeable drops in numbers at sites that have been sprayed […]

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Spotted Wing Drosophila Update: September 9, 2016

Click on photo to enlarge. David Handley, Vegetable and Small Fruit Specialist; James Dill, Pest Management Specialist; Frank Drummond, Professor of Insect Ecology/Entomology Spotted wing drosophila numbers showed a sharp increase at most locations this week. We’ve been also observing an increase in larvae found in ripening fruit in unsprayed plantings and waste fruit. Control […]

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