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Brown lacewing (Micromus variegatus) is an exceptionnal aphids predator. It was first collected when looking for Foxglove Aphid parasitoids in pepper crops. During the pepper survey, this species was frequently associated with active Foxglove Aphid colonies.
Adult are delicate insects, 1,5 cm long. They are brown, with oval wings and long antennae.The eggs are laid on plants, generally near aphid colonies. The larvae are predatory, with strong mandibles (mouthparts) that enables them to seize their prey.
Unlike most green lacewings, brown lacewings are predatory at all mobile stages ot their live-cycle. In fac, it is the adult that does most of the predation, usually at night.
|Preventive||0,1 adult||per m2||as needed||as needed|
|Curative||1 adult||per m2||as needed||as needed|
On the 150 species of trichogramma, 20 of them are used in biological control.
Source : Biological Control of Insect Pests using egg parasitoids (2008)