期刊论文

SAFETY STUDY OF PESTICIDES ON BOG FROG,A PREDATORY NATURAL ENEMY OF PEST IN PADDY FIELD

中文

湖南农业大学学报(自然科学版)

1007-1032

1993

01

47-54

10.13331/j.cnki.jhau.1993.01.008

本校为第一机构

1981～1989年用百余种农药对稻田害虫天敌泽蛙(Rana limnocharis)的蝌蚪、幼蛙和成蛙进行了毒性测定和田间试验,发现杀虫剂的安全性比杀菌剂、除草剂要小.从药量安全指数和48h 的LC_(50)值来看,杀虫剂中拟除虫菊酯类、有机氯类以及沙蚕毒素、杀虫环、杀螟丹、嘧啶硫磷、治螟磷、百菌清、菲醌、苏化911、五氯酚钠、毒草安等品种安全性小.乳油剂的安全性比可湿性粉剂小.混合制剂及不同作用机制的药剂混配安全性变小.泽蛙对农药敏感,尤以蝌蚪最敏感.农药对泽蛙蝌蚪急性毒性可分3类,室内48h LC_(50)值小于1ppm,田间48h 药量安全指数小于0.5时,为高毒类;室内LC_(50)为1～10ppm,田间48h 药量安全指数为...

During 1981 to 1989,116 kinds of pesticides were used in laboratory and fieldto test their toxicity on bog frog(Rana Limnocharis).It was found that the toxicity variedwith different pesdicides,their mixture and formulation.The insecticides were more toxic tobog frog as compared with fungicides and herbicides.The results also indicated that the fol-lowing pesdicides are highly toxic:Pyrethroid,Organochlorine and Nereistoxin,Evisect,Padan,Pirimiphos ethyl,Sulfotep,Chlorothalonin,PCP-Na,Propachlor etc.Pesticide mix-tures are more toxic than single...