Protection of natural enemies of orchard pests

The natural enemies of pests in orchards are mainly predatory ladybugs, grasshoppers, thrips, scorpion flies, predatory crickets, spiders, birds, etc., and natural enemies are well protected, which can effectively contain pests, saving labor and medicine, and protecting the environment. . There are four main methods for protecting natural enemies: one is to plant grass in the orchard. It is to plant beneficial grass species between the rows of fruit trees, usually leguminous grasses. Because the pasture sprouts early and the growth period is long, it is beneficial to the activities of natural enemies. The pests on the pasture also provide a good source of food for the survival of natural enemies. Second, we must pay attention to the prevention and control of pests before the germination of fruit trees. After the winter, the pests are active earlier than the natural enemies. Before the fruit trees sprout, the pests begin to sputum. At this time, various measures can be taken to eliminate them. At this time, spraying is also a favorable opportunity to control pests; the third is to pay attention to the fact that the fruit trees are less sprayed or not sprayed in the growing season, which can effectively protect natural enemies and control the harm of pests to fruit trees; fourth, they should use drugs selectively. Many insecticides and acaricides have little effect on the activities of natural enemies and are called selective pesticides. The correct use of insecticide and acaricide not only effectively protects natural enemies, but also kills pests.

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