论文部分内容阅读
1981至1982年,分别用44个杀虫剂产品,对泽蛙((?)ana Limnocharis)的蝌蚪、幼蛙、成蛙和卵进行了毒力测定。结果表明:不同的杀虫剂,同一品种不同的加工剂型及产地,对泽蛙的毒力显著不同。溴氰菊酯、氰戊菊酯,毒杀芬、杀虫环、杀螟丹、嘧啶硫磷、治螟灵、滴滴涕、鱼藤精等对蝌蚪剧毒。乳剂对泽蛙的毒性显著地大于可湿性粉剂。泽蛙不同的发育阶段,对杀虫剂的抗药力存在着很大的差异,蝌蚪抗药力最弱,幼蛙次之,成蛙最强。本文对湖南稻田杀虫剂的结构和稻田化学防治时保护青蛙的途径,进行了一些初步探讨。
From 1981 to 1982, the tadpoles, frogs, frogs and eggs of the frogs (ana Limnocharis) were tested for their virulence using 44 insecticide products. The results showed that: different insecticides, the same variety of different processing formulations and origin, the virulence of the frog significantly different. Deltamethrin, fenvalerate, toxaphene, insecticidal ring, cartap, pyrimidine, governance borer, DDT, rotenone and so on Tadpole highly toxic. The toxicity of the emulsion to frogs is significantly greater than that of wettable powders. Frog different stages of development, the resistance of pesticides there is a big difference, tadpole resistance weakest, followed by frogs, frog strongest. This paper carried out some preliminary studies on the structure of pesticides in paddy fields in Hunan Province and the ways to protect frogs in chemical control of paddy fields.