Copidosoma koehleri

Systematic position: Copidosoma koehleri belongs to the order Hymenoptera, family Encyrtidae. This insect is a highly specialized parasitoid wasp, globally recognized for its efficacy as a biological control agent against specific agricultural lepidopteran pests.

Biological profile and cycle: This species is a polyembryonic parasitoid. It lays its eggs into the eggs of the potato tuber moth (Phthorimaea operculella). Through polyembryony, one egg from the wasp produces numerous larvae within the host body, ultimately leading to the destruction of the moth larva before it can pupate.

Host plants and damage prevention: The primary target host is the potato tuber moth, which is a devastating pest for Solanaceous crops, including potatoes, tomatoes, and eggplants. By targeting the pest's egg stage, Copidosoma koehleri prevents the larval damage that typically results in tunnels within potato tubers and leaf mines.

Agricultural significance: In modern agronomy, this parasitoid is highly valued for its ability to regulate pest populations without the negative environmental impact associated with synthetic insecticides. Its introduction into field management programs supports sustainable agriculture and improves the marketable yield of root crops.

Integrated Pest Management (IPM): To maximize the benefits of Copidosoma koehleri, growers should integrate biological methods into their standard practices. Key strategies include:

• avoiding broad-spectrum pesticide applications during peak wasp activity;
• providing nectar-rich flowering borders to sustain adult wasp populations;
• monitoring moth egg densities to time releases for maximum impact.