4种助剂对乙基多杀菌素防治葱蓟马的增效作用

Synergism of Four Synergists to Spinetoram in Field Test against Thrips tabaci

在新疆木垒县选用意欧、激健、杰效利、橙皮精油4种助剂与乙基多杀菌素混用,采用喷雾法对洋葱(Allium cepa L.)田葱蓟马(Thrips tabaci Lindimen)进行田间药效试验,评价4种助剂与乙基多杀菌素混用防治葱蓟马的减量增效作用。结果表明,4种助剂与推荐剂量300 g/hm 2乙基多杀菌素混用时,防治效果为36.20%~89.75%;与乙基多杀菌素推荐剂量减量25%混用时,防治效果为38.04%~93.74%;与乙基多杀菌素推荐剂量减量50%混用时,防治效果为25.83%~90.84%。防治效果相当情况下,添加4种助剂可以使300 g/hm 2乙基多杀菌素推荐剂量减少25%~50%,杰效利与3种剂量乙基多杀菌素混用减量增效作用最佳。

In Mulei County,Xinjiang,four synergists of Yiou,Jijian,Jiexiaoli and orange peel essential oil were mixed with spinetoram and field experiments were carried out by conventional foliar spray method to evaluate the field performance of spinetoram with four different synergists against Thrips tabaci.The results showed that when the 4 synergists were mixed with the recommended dose of 300 g/hm 2 spinetoram,the control effect was 36.20%-89.75%.The control effect was 38.04%-93.74%when mixed with 25%reduction in the recommended dose of spinetoram.The control effect was 25.83%-90.84%when mixed with 50%reduction of the recommended dose of spinetoram.To achieve equivalent control effect,adding four synergists can reduce the recommended dose of 300 g/hm 2 spinetoram by 25%-50%,and the best effect was to reduce the amount and mix Jiexiaoli with three doses of spinetoram.