【10%稻腾悬浮剂防治水稻稻纵卷叶螟田间药效试验】水稻稻纵卷叶螟
摘要。以不同浓度10%稻腾悬浮剂、20%康宽悬浮剂和40%毒丝本乳油等3种药剂进行防治稻纵卷叶螟田间药效试验。结果表明,在1、2龄幼虫高峰期,每公顷使用10%稻腾悬浮剂450~900mL,对水稻稻纵卷叶螟的平均防治效果最高可达96.3%,且药效期长,防效和20%康宽悬浮剂相当,明显优于40%毒丝本乳油。从使用成本与防治效果两方面综合考虑,生产上10%稻腾悬浮剂的使用剂量以675mL/hm2比较合适。
关键词:10%稻腾悬浮剂;稻纵卷叶螟;防治效果
中图分类号:S481+.9;s435.112.1文献标识码:A文章编号:0439-8114(2011)08-1579-03
effectofspraying10%daotengsuspensionconcentrateoncontrollingriceleafroller
PANLian-fu,FUGang,ZHANGWen-long,YANWei-hong
(MicrobiologyResearchInstitute,GuangxiAcademyofAgriculturalSciences,Nanning530007,China)
Abstract:Efficacytestsof10%DaotengSuspensionConcentrate(SC),20%KangkuanSCand40%DusibensCagainstriceleafrollerwerecarriedout.Theresultsindicatedthatthecontrollingeffectof10%DaotengSCatthedosageof450~900mL/hm2duringthepeakof1-2instarlarvaewas96.3%,whichwasashighasthatof20%KangkuanSCandbetterthan40%dusibenscsignificantly;andtheefficiencywasdurable.Consideringthecostandcontrollingeffectofreagent,10%DaotengSCatthedosageof675mL/hm2wasrecommandedtobeusedinpracticalapplication.
Keywords:10%DaotengSC;riceleafroller;controllingeffect
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