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通过对20％氯杀威乳油防治稻水象甲的研究表明,亩施50ml对越冬场所、秧田和本田的稻水象甲防治效果均为100％,对越冬代成虫LC50值48h为20ppm,盆栽试验48h死亡率为100％。
Through the research on the prevention and control of Ascochloa crus-galli with 20% chlorpyrifos, the results showed that 50ml of Mushi 50% had 100% control effect on overwintering place, seedling and Honda, and LC50 of overwintering generation was 48% The mortality rate at 48 h was 100%.