Answer: Combating agricultural control measures and chemical control measures for the prevention and control of apple leaves. Agricultural control measures include sowing the grass rings on the trunks or covering the grass with tree trays before wintering, and can attract a large number of overwintering females, and burn them in the spring before the outbreaks; scrape off rough skin from the trunks and eradicate weeds in the garden and gardens. Eliminating the host in early spring; timely irrigation, increasing the relative humidity in the field, causing an ecological environment that is not conducive to the occurrence of leafhoppers; controlling the amount of nitrogen fertilizer application, increasing the application of phosphate fertilizer and potash fertilizer, and increasing tree vigor. For pesticide control, fruit growers can spray 3 to 5 Baume of lime sulfur before germination. The period from the end of June to August is the fastest period of leafhopper breeding, and the generation overlap is serious. At this time, it is best to choose the konjac, broom, avermectin, and triazole which have good killing effect on each pod. Tin and other agents.
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