桑树害虫桑蓟马、叶螨的药剂防治试验初报

Chemical control of Pseudcden drothripsmori and Tetranychus cinnabarinus

利用25.0%吡虫啉、1.8%阿维菌素4、.5%高效氯氰菊酯、40.0%丙溴磷和25.0%灭幼脲3号5种药剂进行防治危害桑树的桑蓟马和叶螨的对比实验,结果表明,40.0%丙溴磷对桑蓟马和叶螨的防治效果最佳,施药7 d的防治率分别达到85.40%和88.16%,施药15 d的防治率分别达到99.15%和98.67%;丙溴磷具有良好的速效性、稳定性和持效性,是防治桑树害虫桑蓟马和螨类的理想药剂。

The contrast test of Pseudcden drothripsmori and Tetranychus cinnabarinus by five chemicals in 25% imidacloprid, 1.8% abamectin, 4.5% beta - cypermethrin, 40% profenofos and 25% chlorbenzuron showed following resuits： Best effect was 40.0% profenofos, the control rates of application 7 d were 85.40% and 88.16%, and of application 15 d were 99.15% and 98.67%, respectively. It is an ideal chemical pesticide for controlling Pseudcden drothripsmori and Tetranychus cinnabarinus by its readily availability, stability and longtime effectivenss.