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我们于1989年从拟除虫菊酯、有机磷、有机氯、氨基甲酸酯、沙蚕毒素及混配药剂等六大类中选择了40多个农药品种,对“稻象甲—1”的成虫、幼虫进行了防治效果试验。通过室内毒力测定、室外人工控制、小区和大田试验,对成虫、幼虫防治均取得良好效果。现将几种效果好的药剂介绍如下: 在水稻插秧(5月中旬)后7—10天,用常规喷雾防治大田成虫的效果见下表。不同农药不同剂量防治成虫试验结果表
In 1989, we selected more than 40 pesticide varieties from six major groups of pyrethroids, organophosphates, organochlorines, carbamates, nereistins and mixed pharmaceuticals, , Larvae have been tested for efficacy. Through indoor toxicity determination, outdoor artificial control, community and field trials, the prevention and treatment of adults and larvae achieved good results. Now several good effects of the agent described below: In rice transplanting (mid-May) after 7-10 days, the effect of conventional spray prevention and control of field adults in the table below. Test results of different pesticides at different dosage to control adults