Joke Collection Website - Talk about mood - Specifically, how to prevent locust plague.
Specifically, how to prevent locust plague.
Biological control refers to the use of organisms to control pests and diseases. Commonly used methods include using birds to control insects, using insects to control insects and using bacteria to control insects. Insect-eating birds are natural enemies of locusts. Using natural enemies of pests to control pests not only avoids pesticide pollution, but also achieves the purpose of controlling or even eliminating pests, which is beneficial to environmental protection. Birds can be divided into herbivores and insectivores, and herbivores cannot repel insects. Options b, c and d are all wrong.
So choose: a
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