Aphid Midge: Biological Control for Aphid Infestations

Aphid Midge Basics

Larvae (orange, 3 mm) eat 3–50 aphids/day for 7–10 days. Adults mosquito-like, long curved antennae. Life cycle 3–4 weeks.

Using Aphid Midges

1. Buy vermiculite/sand with cocoons.
2. Sprinkle on soil around infested plants.
3. Keep soil moist, warm (70°F/21°C), ≥16 hrs light/day.
4. Adults emerge in ~10 days, lay eggs on aphid colonies.
5. Larvae hatch, feast. Repeat release 3× weekly in spring to establish.

Warmth and light are critical for cycle continuation.