捕食螨对烟草育苗期蓟马防治效果研究.PDF

中国农学通报 2018 中国农学通报 2018,34(16): 131-134 Chinese Agricultural Science Bulletin Chinese Agricultural Science Bulletin 捕食螨对烟草育苗期蓟马防治效果研究 潘义宏，饶骏晨，孙兴权，杨 俊，王柱石 （云南瑞升烟草技术（集团）有限公司，昆明650106） 摘 要：为明确捕食螨对烟草蓟马的防治效果，笔者调查了云南泸西中枢育苗期蓟马发生情况及种类， 并对比研究了不同捕食螨释放数量、释放方式及携带微生物菌剂的防治差异。结果表明：蓟马种类主要 为西花蓟马，其次为八节黄蓟马，发生高峰期在4 月中旬左右；捕食螨投放100 头/盘防治效果最好；均匀 撒施捕食螨对蓟马防治效果显著优于开袋放置及空白对照(P0.05) ；捕食螨搭载球孢白僵菌对蓟马控 制效果最好，搭载金龟子绿僵菌与不带菌相差不大，但均显著高于空白对照(P0.05) 。 关键词：捕食螨；育苗期；蓟马；释放方式；球孢白僵菌；金龟子绿僵菌 中图分类号：S435 文献标志码：A 论文编号：cas PredatoryMites:ControlEfficacyAgainstThripsatTobaccoSeedling-stage PanYihong,RaoJunchen,SunXingquan,YangJun,WangZhushi (YunnanReascendTobaccoTechnology(Group)Co.,Ltd,Kunming650106) Abstract:Thepaperaimstoverifythecontrolefficacyofpredatorymitesagainstthripsattobaccoseedling- stage.Theauthorsinvestigatedtheoccurrenceandspeciesofthripsandcomparativelystudiedthecontrol efficacyofreleasequantities, methodsandcarriedmicrobialagentsofdifferentpredatorymitesinZhongshu, Luxi,Yunnan.Theresultsshowedthat:themainspeciesofthrips was Frankliniellaoccidentalis (Pergande), followedby Thripsflavidulus (Bagnall),thethripsreachedthehighestpeakinmid-April;thereleaseof 100 mites Amblyseiuscucumeris (Oudemans)pertrayprovidedthebestcontrolefficacyamongdifferentrelease quantities,andthe uniform broadcastmethodwassignificantly(P0.05)moreeffectivethanplacedwithan openbagandCK;thecontrolefficacyofpredatorymitescarriedwith Beauveriabassiana Vuilleminwasthe best,and thecontrolefficacyofpredatorymites carriedwithMetarhiziumanisopliae Sorokinwereparallelto thatwithoutmicrobialagent,whereasbothweresignificantlymoreeffectivethanCK(P0.05). Key words: predatory mites; seedling-stage; thrips; release method; Beauveria bassiana Vuillemin; Metarhiz