红蜘蛛和桃小食心虫是苹果树的主要害虫。目前 ,市场上防治的药剂很多 ,大多数为有机磷类和菊脂类农药 ,由于长期使用 ,已产生抗药性 ,防治效果下降 ,防治成本增高 (如防治果树红蜘蛛每年至少喷施药 4 - 5次 ) ,有毒残留物含量在树体、果实上积累也越大 ,并对人体健康和树体生 Red spider and peach moth are the major pests of the apple tree. At present, there are many agents for prevention and treatment in the market, most of which are organophosphorus and chrysanthemum pesticides. Due to their long-term use, they have become drug-resistant, their prevention and control effects have decreased, their prevention and treatment costs have been raised (for example, 5 times), the toxic residue content in the tree, the greater the accumulation of fruits, and human health and tree body