Bean seed fly, small gray flies measuring 3 to 6 mm.
Also known as:
Seedcorn maggot
Bean seed fly (Delia platura) Small, gray flies measuring 3 to 6 mm. The seed bean fly affects the roots and growing points of germinating seeds.
Where to find
Control
In horticulture, the bean seed fly is controlled with plant industrial insecticides. This is not possible in the vegetable garden or allotment.
Prevention
Keep the bean seed fly away by sowing a row of buckwheat: this attracts parasitoid wasps, the bean seed fly’s natural enemy. When greenhouse growing, provide the windows with insect netting, this will keep the bean seed flies out.
