Trichogramma achaeae
Overview
Trichogramma achaeae is a tiny egg parasitoid used against moth and caterpillar pests. It attacks pest eggs before larvae hatch, helping prevent feeding damage before it begins.
Type
Egg parasitoid wasp.
Target Pests
- Caterpillar eggs
- Moth eggs
- Tomato moth eggs
Why Trichogramma is Important
Most caterpillar crop damage begins after larvae hatch and start feeding.
Trichogramma targets the pest before this stage, making timing and monitoring especially important.
Environmental Preferences
Temperature
Performs best under suitable protected-crop temperatures.
Timing
Most effective when pest eggs are present.
Crops Commonly Used In
- Tomatoes
- Peppers
- Ornamentals
- Protected crops
Strengths
- Targets pests before damage occurs
- Useful preventative control
- Compatible with monitoring-led IPM
Limitations
- Requires accurate timing
- Less useful once larvae are already feeding
- Needs repeat releases in high-risk periods
Monitoring Establishment
Look for:
- Reduced egg hatch
- Lower early larval pressure
- Reduced fresh feeding damage