Trichogramma brassicae (Controlled Release) 75 Dispensers (≈ 187,500)Trichogramma brassicae Natural Moth Control for Crops What It Does: Trichogramma brassicae is ideal for controlling moths (Lepidoptera) on cole crops in cooler climates, especially where caterpillar and borer damage is common. How It Works: Trichogramma wasps lay their eggs inside pest moth eggs, preventing development. After 10 days, larvae emerge, and each female can parasitize up to 300 moth eggs. Adult wasps live 7 14 days depending on temperature