The egg parasitoids particularly Trichogramma spp. have undoubtedly had a significant role in boosting the status of biological control of crop pests. Destroying the pests in their egg stages, the egg parasitoids give no opportunity for the pest to hatch and damage the crop. Though Trichogramma is extensively used in many countries; sound knowledge of the egg parasitoids is urgently needed as rightly pointed out by the editors in the preface.
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