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根据《农药安全使用规定》:“嗓虫脒在水稻整个生长期内,只能使用一次,每亩用25％水剂2两,距收获期不得少于40天;每亩用25％水剂4两,距收获期不得少于70天”。如何在限量使用的前题下,充分发挥杀虫脒的作用,是当前防治水稻螟虫工作中急待解决的问题。我们采用复配方法:将杀虫双、1605、敌百虫等农药与杀虫脒混合使用,防治水稻螟虫,效果较好。其中杀虫双、杀虫脒混用,盆栽、田间小区和大田示范结果一致,防效显著。
According to the “Provisions for the Safe Use of Pesticides”: “In the entire growth period of rice, the use of the same amount of the insect should only be used once, with 25% of the water agent per acre 2 and 2 days away from the harvesting period of not less than 40 days; 25% 4 two, from the harvest period of not less than 70 days. ” How to give full play to the role of chlordimeform under the prerequisite of limited use is an urgent issue to be solved in the current prevention and control of rice stem borers. We use the compound method: insecticide double, 1605, trichlorfon and other pesticides and chlordimeform mixed use of rice stem borer control, the effect is better. One insecticide double, chlordimeform mixed pot, field plot and field demonstration results are consistent, significant effect.