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ID:9216853
大小:2.30 MB
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时间:2018-04-23
《29种农药对家蚕的急性毒性评价》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、ScienceofSericulture蚕业科学2011,37(2):0343-0346ISSN0257-4799;CN32-1115/SE-mail:CYKE@chinajournal.net.cn29种农药对家蚕的急性毒性评价12311张骞姜辉肖斌崔新倩王开运123(山东农业大学植物保护学院,山东泰安271018;农业部农药检定所生物技术研究测试中心,北京100026;山东省农药检定所,济南250100)摘要采用食下毒叶法,测定29种农药对家蚕的急性毒性,结果表明:阿维菌素、多杀菌素、氯氰菊酯·毒死蜱和吡虫啉对家蚕96h的LC50分别为0.0020、0.0891、0.2145
2、和0.2729mg/L,属剧毒级农药;阿维菌素·苏云金杆菌、丁硫克百威、敌百虫、除虫菊素·苦皮藤素、丙溴磷、苏云金杆菌·毒死蜱和烟碱对家蚕96h的LC50分别为0.6921、0.7696、0.8502、0.7449、2.5134、1.7327和7.2604mg/L,属高毒级农药;其余药剂均属中、低毒级农药。以上剧毒级或高毒级的农药应当禁止在蚕区使用。吡蚜酮对家蚕的毒性低,但在蚕区是否能使用低毒级农药,还须考虑药剂的残毒期、慢性毒性和传染性等因素。关键词农药;家蚕;急性毒性;毒性分级+中图分类号S884.96文献标识码B文章编号0257-4799(2011)02-0343-04An
3、EvaluationonAcuteToxicityof29PesticidestoBombyxmori12311*ZHANGQianJIANGHuiXIAOBinCUIXin-QianWANGKai-Yun12(CollegeofPlantProtection,ShandongAgriculturalUniversity,TaianShandong271018,China;BiotechnologicalRe-searchandTestingCenter,InstitutefortheControlofAgrochemicals,MinistryofAgriculture,Bei
4、jing100026,China;3InstitutefortheControlofAgrochemicals,JinanShandong250100,China)AbstractTheacutetoxicityof29pesticidestosilkworm,Bombyxmori,wasevaluatedinlaboratorybyusingtheleafdippingmethod.TheresultsindicatedthatLC50ofabamectin,spinosad,cypermethrin·chlorpyrifos,andimidaclopridwas0.0020,
5、0.0891,0.2145,and0.2729mg/Lrespectively,beingpesticidesofvirulenttoxicitygrade.TheLC50ofabamectin·Bacillusthuringiensis,carbosulfan,trichlorfon,pyrethrins·celastrusangulatus,profenofos,Bacillusthuring-iensis·chlorpyrifos,andnicotinewas0.6921,0.7696,0.8502,0.7449,2.5134,1.7327,7.2604mg/Lrespec
6、-tively,beingpesticidesofhightoxicitygrade.Alltheotherpesticideswereofmoderateorlowtoxicitygrade.Pesticidesofvirulentandhightoxicitygradeshouldbeforbiddentouseinsilkwormrearingareas.Pymetrozineisoflowtoxicitygrade.Yettheresidualtoxicityperiod,chronictoxicityandinfectivityshouldbeconsideredifp
7、esticidesoflowtoxicitygradearetobeusedinsilkwormrearingareas.KeywordsPesticide;Bombyxmori;Acutetoxicity;Toxicitygrade家蚕(Bombyxmori)是重要的经济昆虫,作为农在蚕业生产中,因农药污染桑叶而导致家蚕中毒的事[1-3]业生态系统中对农药十分敏感的昆虫,家蚕同时也是件时有发生。近年来,农业生态安全已被列入农我国农药登记中所列环境生态的非靶标生物之一。业可持续发
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