Predatory insects

to their effectiveness as biological control agents. Female gall midges lay their eggs on plant leaves, and when the larvae hatch, they feed on aphids

Aphidius colemani

even when they are at low density. The behaviour of the female during egg-laying is typical of the Aphidiidae. First the host is examined by drumming with

Broad mite

Tarsonemid mites have no eyes. Female broad mites ( Polyphagotarsonemus latus ) lay their eggs mainly on the underside of the leaf or on the fruit surface. The

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Diglyphus isaea

host. Egg stage: A female wasp first paralyzes the leaf miner larva and then lays a single egg (occasionally more) next to it. In general, the wasp selects

Predatory mites

including egg, larva, protonymph, deutonymph and adult. Predatory mites lay their eggs near pest-infested areas. The larvae have three pairs of legs.

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