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苹果黄蚜是危害苹果树的主要害虫,为了减少化学农药的使用,生产绿色果品,特选用生物农药烟碱·苦参碱1.2%EC进行田间药效试验。结果表明,烟碱·苦参碱1.2%EC是防治苹果黄蚜的理想药剂,虽然其速效性不如对照药剂吡虫啉10%WP,但其持效性长,防效高,杀虫谱广,可同时防治红蜘蛛、卷叶蛾等多种害虫,对天敌较安全,是生产有机果品的首选药剂。在防治苹果黄蚜时,推荐用药浓度为800～1000倍液。在果树新梢生长期用药,建议隔10d再喷1次,连喷两次,效果更佳。
Apple yellow aphid is the main pest that endangers the apple tree. In order to reduce the use of chemical pesticides and produce green fruits, we selected the bio-pesticide nicotine · matrine 1.2% EC for field efficacy test. The results showed that nicotine · matrine 1.2% EC is the ideal agent for controlling Aphis gossypii. Although it is less effective than the control agent imidacloprid 10% WP, it has long-lasting effect, high control efficiency and broad insecticidal spectrum At the same time control spider mite, leaf roller and other pests, natural enemies safer, is the first choice for the production of organic drugs. In the control of yellow apple aphids, the recommended drug concentration 800 to 1000 times the solution. In the growth of new shoots of fruit medication, it is recommended to spray 10d again, and even spray twice, the effect is better.