贵州农业科学
貴州農業科學
귀주농업과학
GUIZHOU AGRICULTURAL SCIENCES
2014年
1期
94-97
,共4页
小麦粘虫%发生特点%生物药剂%药效试验%综合治理
小麥粘蟲%髮生特點%生物藥劑%藥效試驗%綜閤治理
소맥점충%발생특점%생물약제%약효시험%종합치리
wheat armyworm%occurrence characteristics%bio-pesticides%efficiency experiment%comprehensive treatment technique
为了有效地控制小麦粘虫的发生和危害，采用田间系统调查的方法对小麦粘虫的发生特点进行了调查，在此基础上进行了小麦粘虫综合治理技术和不同生物药剂对小麦粘虫幼虫的控制效果研究。结果表明：该虫在孝感市北部地区1年发生4～5代，以幼虫或蛹在麦田土中、稻桩和杂草堆等处越冬；第1代卵孵化盛期在3月下旬至4月上旬，为幼虫最重危害代。综合防治措施以农业防治和生态防治为主，重视保护和利用本地天敌，加强稻草把及糖醋诱剂诱杀成虫，推广使用生物药剂防治，控制使用化学防治的小麦粘虫综合治理策略。生物药剂对小麦粘虫幼虫的控制效果最好的是60 g/L乙基多杀菌素 SC 2000倍液，药后7 d校正防效达95．96％；其次是2．0％阿维菌素 EC 2000倍液，校正防效为95．12％；20％三唑磷 EC 1000倍液的持效性较差，校正防效仅为78．72％；其余3种生物药剂的校正防效均超过89％。
為瞭有效地控製小麥粘蟲的髮生和危害，採用田間繫統調查的方法對小麥粘蟲的髮生特點進行瞭調查，在此基礎上進行瞭小麥粘蟲綜閤治理技術和不同生物藥劑對小麥粘蟲幼蟲的控製效果研究。結果錶明：該蟲在孝感市北部地區1年髮生4～5代，以幼蟲或蛹在麥田土中、稻樁和雜草堆等處越鼕；第1代卵孵化盛期在3月下旬至4月上旬，為幼蟲最重危害代。綜閤防治措施以農業防治和生態防治為主，重視保護和利用本地天敵，加彊稻草把及糖醋誘劑誘殺成蟲，推廣使用生物藥劑防治，控製使用化學防治的小麥粘蟲綜閤治理策略。生物藥劑對小麥粘蟲幼蟲的控製效果最好的是60 g/L乙基多殺菌素 SC 2000倍液，藥後7 d校正防效達95．96％；其次是2．0％阿維菌素 EC 2000倍液，校正防效為95．12％；20％三唑燐 EC 1000倍液的持效性較差，校正防效僅為78．72％；其餘3種生物藥劑的校正防效均超過89％。
위료유효지공제소맥점충적발생화위해，채용전간계통조사적방법대소맥점충적발생특점진행료조사，재차기출상진행료소맥점충종합치리기술화불동생물약제대소맥점충유충적공제효과연구。결과표명：해충재효감시북부지구1년발생4～5대，이유충혹용재맥전토중、도장화잡초퇴등처월동；제1대란부화성기재3월하순지4월상순，위유충최중위해대。종합방치조시이농업방치화생태방치위주，중시보호화이용본지천활，가강도초파급당작유제유살성충，추엄사용생물약제방치，공제사용화학방치적소맥점충종합치리책략。생물약제대소맥점충유충적공제효과최호적시60 g/L을기다살균소 SC 2000배액，약후7 d교정방효체95．96％；기차시2．0％아유균소 EC 2000배액，교정방효위95．12％；20％삼서린 EC 1000배액적지효성교차，교정방효부위78．72％；기여3충생물약제적교정방효균초과89％。
To effectively control the occurrence and hazard of the wheat armyworm,a field system investigation was conducted to explore the occurrence characteristics of wheat armyworm,and based on this the control effects of comprehensive treatment techniques and different biological insecticides.The results showed that this worn existed in the north of Xiaogan City for 4~5 generations,and passed the winter when it is in the generation of larva or insect pupa in wheat field soil,rice stub,a mass of weeds or other places.The first generation egg hatched in late March to early April,this generation of larvae was of the most hazard.Through the study on comprehensive treatment techniques of wheat armyworm,the authors put forward to control agricultural and ecological prevention,protection and pay much attention on local natural enemy,strengthen the straw and sweet and sour attractant for adults worms.At the same time,we should promote the use of bio-pesticides control,control strategy of integrated management of wheat armyworm use of chemical control.The 60g/L Spinetoram SC 1∶2000 was of the best control effect to wheat armyworm,the 7 d revised control effect was 95.96%,2.0% Avermectin EC 1∶2 000 took the second place,with revised control effect of 9 5 .1 2%;The corrected control efficiency of the other bio-pesticides were all more than 89%.The worst one was the 20% Triazophos EC 1∶1000,which only has a corrected control efficiency about 78.12%.
