【摘要】 本文通过对65%毒死蜱产品的示范试验对比,明确毒死蜱对桑园害虫存在一定的选择性,对害虫敏感程度依次为扁刺蛾、白毛虫、桑螟、桑尺蠖,主要表现为累积性中毒症状。依据试验结果推荐使用浓度为1500~2000倍,安全间隔期为21 d或以上。但产品的配制方法和选用的原药纯度直接影响产品的稳定性和使用后残留时间的长短,影响家蚕的安全饲养。更多还原

【Abstract】 The application experiment of 65% chlorpyrifos in mulberry field showed that chlorpyrifos has selective effecton the pests in mulberry field.The pests sensitive order was like nettle grub,herba aristolochiae millissimae,mulberry pyralid,mulberry geometrid.The main symptom showed as cumulative intoxication.1500~2000 times dilution will be recommended in field application.Safety interval will be up to 21 days.The formula and purity of active compound in the pesticide will affect the stability and safety residual interval of the products;thereby affect the safety of sericulture.更多还原