Pests in orchards and their natural enemies are interdependent and mutually restrictive. In the production process, this relationship is used in conjunction with strict agricultural operations to avoid the harm of pests and is extremely beneficial to the production of green fruits.
I. Classification of Natural Enemies of Fruit Pests
Natural enemies of pests are pests that exist at the same time as pests. They are mainly divided into predatory and parasitism categories. They are mainly predatory ladybugs, grasshoppers, florets, thrips, flies and parasites. When pesticides are applied in orchards, predators must be fully protected.
Second, ecological control
Pest control: The 5 degree lime sulfur should be sprayed once in the spring on the basis of adequate cutting, scraping of adult pests, maggots, egg branches, bark and burning. After that, according to the monitoring results of insect pests, the targeted pesticides can be sprayed in time with the weak resistance of the insect pests, and they can receive a multiplier effect.
Selective use of drugs: mainly include diflubenzuron and imidacloprid in insecticides, avermectin in acaricides and so on.
Orchard grass: Grass orchards in the orchard, especially among rows of grass, can effectively regulate orchard fertility, water supply, but also conducive to the breeding and activities of natural enemies of pests. More importantly, when pests are controlled, natural enemies can escape from the grass to avoid killing them. Orchard grass between the lines, generally legume grass as well, such as alfalfa, white clover and so on.
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