阿维菌素对苹果园主要害虫的控制作用

Action of Abamectin on Controlling Orchard Main Pests

为明确阿维菌素对苹果主要害虫的控制作用,为其在生产中的合理使用提供理论依据,以1.8%阿维菌素乳油为代表品种,针对苹果园桃小食心虫、绣线菊蚜、金纹细蛾、二斑叶螨、苹果全爪螨等5种主要害虫开展了田间药效试验。结果表明:阿维菌素可作为防治苹果树桃小食心虫和绣线菊蚜的兼治药剂,宜在二者发生较轻、结合防治其它害虫时使用;阿维菌素防治苹果树金纹细蛾与生产上常用药剂灭幼脲防效相当,可在生产上推广使用;阿维菌素对苹果树活动态螨有较好防效,但杀卵效果较差,适于在叶螨发生初期,卵量较小时使用。只要正确的掌握其使用技术,阿维菌素对苹果多种害虫均具有较好的防效。

To explore the efficiency of abamectin on controlling the main apple pests and provide the rational method for practice, field trail was done with 1.8% abamectin EC on controlling Carposina niponensis, Aphis citricola, Lithocolletis ringoniella, Tetranychus urticae and Panonychus ulmi. The result showed that abamectin can be used to control Carposina niponensis and Aphis citricola when the pupluation is not large and togerher with the other insetcide; its effect on trolling LithocoUetis ringoniella was similar with Chlorobenzuron （a commonly used insecticide in practice） and can be spread safely in practice; it had high efficiency to control adult mites but low efficiency to kill the eggs, so it is suitable for using at the initial period. Consequently, abamectin had better control efficacy on various fruit pests, but correct operating techniques should be grasped.