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山楂叶螨和金纹细蛾是为害苹果树叶片的主要害虫,多采用化学药剂防治。在山西太谷苹果园进行了防治上述两种害虫的田间施药试验。结果表明,110 g/L乙螨唑SC、240 g/L螺螨酯SC和5%唑螨酯SC对山楂叶螨具有优良的防治效果,且持效期长,是防治山楂叶螨的理想药剂。推荐有效使用剂量分别为18.3、22.0 mg/L,20.0、25.0 mg/L,40.0、48.0 mg/L。害螨为害初期施用乙螨唑、螺螨酯,害螨发生初盛期施用唑螨酯。同时,35%氯虫苯甲酰胺WG和30%阿维·灭幼脲SC对金纹细蛾的防治效果良好,用药后5d的防效达85%以上,用药后20 d的防效仍维持在83%以上。推荐有效使用剂量分别为17.5、20.0 mg/L,100.0、150.0 mg/L。在成虫羽化盛期施药。
Hawthorn spider mites and gold moths are the main insect pests damage apple leaves, and more use of chemical control. In Shanxi Taigu apple orchard for the prevention and control of the above two kinds of pests field application test. The results showed that 110 g / L etoxazole SC, 240 g / L spirodiclofen SC and 5% fenaritofen SC had good control effect on hawthorn spider mites and had long lasting effect, which was the ideal for controlling hawthorn spider mites Pharmacy. Recommended effective doses were 18.3,22.0 mg / L, 20.0,25.0 mg / L, 40.0,48.0 mg / L. Pest mite damage early application of etoxazole, spirodiclofen, pest mites occurred during the early peak of fenazole mite ester. At the same time, 35% chlorantraniliprole WG and 30% abamectinuron SC had a good control effect on the golden moth, and the control effect was over 85% at 5 days after administration, and the control effect remained at 20 days after administration Above 83%. Recommended effective doses were 17.5,20.0 mg / L, 100.0,150.0 mg / L. In adult eclosion spraying.