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Biological control of leaf miner - Diglyphus isaea

Diglyphus isaea is an ectoparasite, which means that it lays eggs beside the host. It can parasitize many species of leaf miner. In order to produce eggs it punctures mainly larvae, to feed on their body fluids. Once parasitized by the wasp, the leaf miner stops feeding. Diglyphus lays its eggs alongside the paralyzed leaf miner larva. When the larva hatches, it punctures the leaf miner and sucks out its body fluids. As a result the leaf miner larva dies. Diglyphus immediately starts to search for leaf miners to parasitize.

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