Aphid parasitoid wasp for green peach aphid
Koppert markets it mainly for potato and glasshouse potato aphids and says it "also has an effect" on green peach aphid, so treat it as a secondary option here. Arbico sells it for this aphid, and in lab tests the wasp developed in it, with about 73% of stung aphids producing adults, though almost all of those offspring were male. But Aphidius colemani is the wasp sold for green peach aphid and works faster; in one comparison it parasitised 60% in six hours against 13% in 24 hours for Aphelinus. Use Aphelinus alongside colemani when temperatures stay above 28 °C.
Before you order
For potato and foxglove aphid under glass, especially in hot spells when Aphidius falters; kills by feeding on aphids as well as laying in them. How it works, how to tell it has established and the supplier list are on the full Aphelinus abdominalis profile.
How many do I need?
Area and infestation level in; quantity, cost and a weekly schedule out. Open the calculator →
Other controls for green peach aphid
- Aphidius colemaniParasitoid wasp · 0.25–4 /m² per release, at least three releases
- Aphidoletes aphidimyzaPredatory midge · 1–10 /m² per release, weekly
- Chrysoperla carneaGreen lacewing larvae · 2–20 /m² per release, weekly
- HoverfliesWild predator (larvae) · Wild — attract adults with open flowers
- LadybugsWild predator · Nothing to release — feed and shelter the ones already there
- Chrysoperla rufilabrisGreen lacewing larvae · 1–5 larvae /sq ft (about 11–54 /m²) per release
- Beauveria bassiana strain GHAMicrobial insecticide (fungus) · Label rate — ½–1 qt per 100 gal (BotaniGard ES / Mycotrol ES) or ½–1 lb (22WP)