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研究了7种除草剂和8种杀菌剂的常规浓度对稻田害虫褐飞虱及其捕食性天敌的杀伤作用。结果表明,扫弗特对褐飞虱、尖钩宽黾蝽、黑肩绿盲蝽成虫的杀伤作用显著,丁草胺除对褐飞虱成虫杀伤小外,对上述2种天敌的杀伤作用也大。快杀稗、乙草胺、苄磺隆、金秋、稻福星的杀伤作用不明显;异稻瘟净对褐飞虱2、3龄若虫、尖钩宽黾蝽、黑肩绿盲蝽成虫的杀伤作用显著;甲基立枯磷对褐飞虱2、3龄若虫有显著的杀伤作用,但对尖钩宽黾蝽成虫的杀伤作用不明显。百菌清、叶枯灵、多菌灵、井冈霉素、三环唑、叶青双对褐飞虱及上述天敌的杀伤作用均不明显。
The killing effects of conventional herbicides and eight fungicides on brown planthopper (BPH) and their predatory natural enemies were studied. The results showed that the killing effect of Spartifox on the brown planthopper, the broad-necked stink bug and the black-shouldered stink bug were significant. The butachlor killed a large amount of the two natural enemies in addition to killing little of the brown planthopper. The killing effect of barnyardgrass, acetochlor, metsulfuron-methyl, golden autumn and rice fuxing was insignificant. The killing effect of different blast nematodes on the 2nd instar nymphs, Methyl triflurate had a significant killing effect on the 2nd and 3rd instar nymphs of N. lugens, but not on the adults. Chlorothalonil, Yeku Ling, carbendazim, Jinggangmycin, tricyclazole, Ye Qing pairs of brown planthopper and the natural enemies of the killing effect is not obvious.