Product ID: TP30
Trichogramma pretiosum - Best in vegetable gardens where the protective zone is five feet or less above ground level. Trichogramma are among the smallest insects, having a wingspread of about 1/50th of an inch. Despite its size, this parasitic wasp is an efficient destroyer of the eggs of more than 200 species of moths and butterflies which are leaf eaters in the larval stage. Trichogramma wasps seek out eggs, but do not feed on or harm vegetation. It is a particularly effective control agent because it kills its host before a plant can be damaged. Adult wasps are yellow or yellow and black with bright red eyes, short antennae, and compact bodies. They look like gnats. A small hole in the host egg is visible if the wasps have emerged. Females lay one or more eggs in the egg of a host insect. The larvae pupate inside the host egg, and adult wasps emerge seven to ten days after the egg is laid. Over fifty wasps can emerge from one egg. In warm weather many generations can be produced. Hosts include corn, cotton, cabbage, peas, tomatoes, soybeans, rice, citrus, ornamental plants, pecans, and forests. Habitat: Moth eggs. Parasitized eggs turn black. European corn borer, corn earworm, imported cabbage worm, diamond back moth, cabbage looper, pecan nut case bearer, tomato hornworm, and tobacco hornworm. Economic importance: Very effective control of many troublesome pests in the landscape and in agriculture.