Trichogramma brassicae

Trichogramma is a small insect (0.3–0.4 mm. The entomophage parasitizes inside eggs of Lepidopteran insects. The imago feeds on nectar. The female is able to lay 2–4 eggs inside the large eggs. After hatching the young larva consumes the contents of a pest egg, then it pupates. A female of Trichogramma is able to infest 20–40 eggs of the pest. The development of one generation takes 10–13 days. Within vegetation period 3–14 generations can develop. The entomophage is applied on many agricultural (cereal, industrial, vegetable, berries) and ornamental-flower crops in the conditions of glass-covered ground and outdoor planting. The rate of invasion varies in dependence on region, defended crops, the density of population and the species of pests (from 40 thousands to 200 thousands individuals per ha). Invasions are made in 2–3 terms with 5-days intervals.

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Advantages

  • a wide range of pest species;
  • the high effectiveness of prophylactic application;
  • easy in application.