Aphidius colemani

Aphidius colemani is a parasitic wasp.It is black, its size as a rule is about 2 mm. The female of Aphidius lays its eggs directly in the body of a prey (aphid). The entomophage parasitizes inside adult individuals and nymphs. After the laying of the egg in the pest body a larva emerges. It begins to feed on the inner contents of a host body. The exterior of the aphid becomes golden-brown and  the prey is transformed into a mummy. During life cycle Aphidius lays about 100 eggs. The life span of the adult amounts to 2–3 weeks. The main purpose of entomophage application is the control of aphids (Myzus persicaeMyzus nicotianaeAphis gossypii and others) on such crops as the sweet pepper, the cucumber, the eggplant, the rose and the chrysanthemum.

The optimal conditions for the development and the life activity of the entomophage are: a temperature of 18–25°C, a relative air humidity of 70–80%. The rate of entomophage application for prophylaxis is 0.1–0.5 individuals per 1 m of area.

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Advantages

  • application for many crops;
  • the possibility of preventive using (as prophylaxis);
  • well search abilities;
  • high reproductive ability.