Trichogramma species are egg parasites that play an important role in biological pest control. They are natural enemies of many harmful lepidopteran pests that affect a variety of crops.
About 150 Trichogramma species are now known. Ten of them are used for biological pest control in maize, cotton, sugar cane, and fruit production; viticulture; and forestry. In contrast to many chemical insecticides, Trichogramma are environmentally friendly.
Managing the European corn borer with Trichogramma is an efficient strategy because the eggs of the pest are parasitised and killed before they hatch. The egg parasites proliferate as long as they can find appropriate hosts.