An application of fengycin family lipopeptides in pest control is provided, and Fengycin family lipopeptides are used for pest control, with especially strong killing effects on Homoptera and Coleoptera pests. A method is provided for treating seeds with fengycin to protect seeds and plant organs formed later from pests, so as to protect seeds from pests by coating the fengycin family lipopeptides on the surface of seeds.
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