BeneficialCabbage aphid
Aphid predatory midge for cabbage aphid
Aphidoletes aphidimyza · predatory midge
Against cabbage aphid
UMass lists the predatory midge as a purchasable option against cabbage aphid in high tunnels, active in summer but inactive once day length drops below 15 hours. Banker plants used for Aphidius colemani also support the midges. They pupate in the soil, so provide moist sand under banker plants where the tunnel floor is plastic or weed mat.
Rate1–10 /m² per release, weekly
TimingSummer only, in tunnels; the midges diapause once days are shorter than 15 hours (September–March)
Temperature20–26 °C best; needs warm nights and long days
macro · aphid predatory midge on cabbage aphid
The pestCabbage aphidBrevicoryne brassicaeDense grey waxy colonies; curled, yellowed leaves; contaminated heads and sproutsFull pest profile →Before you order
Released onto established aphid colonies; the orange larvae kill more than 60 aphid species. How it works, how to tell it has established and the supplier list are on the full Aphidoletes aphidimyza profile.
Release calculator
How many do I need?
Area and infestation level in; quantity, cost and a weekly schedule out. Open the calculator →
Other controls for cabbage aphid
- HoverfliesWild predator (larvae) · Wild — plant alyssum, dill, cilantro or Ammi majus near the brassicas
- LadybugsWild predator · Nothing to release in the open garden — conserve the ones already there
- Chrysoperla carneaGreen lacewing larvae · 2–20 /m² per release, weekly
- Cabbage aphid parasitoidWild parasitoid wasp · Wild — grow Ammi majus and other flowers near the brassicas