Aphidius colemani

Type

Parasitoid wasp

Target pests

• Aphids

Best use

Commonly used preventatively in protected crops for small aphid species.

Notes

Works best when introduced early alongside good monitoring.

IPM positioning

Primary curative parasitoid for aphids. Best introduced early at low pest density.

Best deployment strategy

• Introduce early when aphids are first detected (or historically expected).
• Focus on hot-spots and young growth where aphids build fastest.
• Repeat introductions to maintain pressure during rapid crop growth.
• Avoid broad-spectrum insecticide residues that disrupt parasitoid activity.

Compatibility notes

• Works well with: Adalia bipunctata, Chrysoperla carnea (predator clean-up while parasitoids provide continuity).
• Avoid: broad-spectrum insecticides and long-lived residues that reduce parasitoid survival/activity.

Environmental preferences

• Performs best in stable, moderate greenhouse conditions.
• Activity drops in cold conditions; extremes reduce performance.
• Avoid disruptive spray residues and harsh environmental swings during establishment.