BeneficialMelon aphid

Aphid parasitoid wasp for melon aphid

Aphidius colemani · parasitoid wasp
Against melon aphid

Cotton or melon aphid is one of the three aphids Koppert sells this wasp for. In a North Carolina greenhouse trial on chrysanthemum it held melon aphid as low as imidacloprid did, with 49–83% parasitism, although it cost 4.7 times as much. Start soon after planting and release at least three times; the first mummies appear 10–14 days after the first release. Colonies sit on leaf undersides, so check there.

Rate0.25–4 /m² per release, at least three releases
TimingSoon after planting, before aphids build
Temperature18–25 °C best; falls off above 30 °C

Before you order

Released preventively under glass from soon after planting; for the small aphids — green peach, melon and tobacco aphid. How it works, how to tell it has established and the supplier list are on the full Aphidius colemani profile.

Release calculator

How many do I need?

Area and infestation level in; quantity, cost and a weekly schedule out. Open the calculator →

Will it survive my spray?

Pesticide sensitivity

Check anything applied in the last month before releasing. Check a product →

Other controls for melon aphid

  • Aphidoletes aphidimyzaPredatory midge · 1–10 /m² per release, weekly
  • Chrysoperla carneaGreen lacewing larvae · 2–20 /m² per release, weekly
  • Braconid waspsWild parasitoid · Wild — conserve; do not buy
  • HoverfliesWild predator (larvae) · Wild — attract adults with open flowers
  • LadybugsWild predator · Nothing to release — conserve the ones already there