The carrot rust fly looks similar to the common house-fly with a dark-green body and yellow extremities and head. The carrot rust fly itself doesn’t do the damage, but their larvae is particularly bad for your plants. The adults lay their eggs early spring on the surface of the soil then the pests hatch a couple days later as creamy white larvae and tunnel into the roots of your plants causing slow growth and sometimes death.
The best treatment is prevention with these flies! The best way to protect against these flies laying their eggs in your garden is to provide a floating row cover.
Like with most plants, crop rotation is important with the prevention of these flies coming back from year to year and infecting your crop.
Using a yellow sticky trap can trap these adult flies before they have a chance to lay their eggs. Like with most plants, crop rotation is important with the prevention of these flies coming back from year to year and infecting your crop.
Plants to Watch for: