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1、保护地常用农药对蜡蚧轮枝菌菌丝生长影响研究植物保护2Oo3年1O月第29卷第5期PLANTPROTECTIONOct.2Oo3,Vd.29,No.5?19?terizationoftheentow~eidald0咖-moftheBacillusthuringiensisCryIA(b)protoxing[J].MolGenGenet.1995,(247):482—487.[15]StrizhtrvN,KellerM,Konez—k&lm6ng,eta1.Map#rigofthem—tonmdalfragmentofSpodoptera—specif
2、icBacillusthuringiensistoyAnCrylC[J].MolGenGenet,1996,(253):11—19.[16]SekarV,HeldB,TipperJ,og.BiochemicalandmolecularcharacterizationoftheinsecticidalfragmentofCryV[J].AEn—vironMicrobiol,1997,63(7):2798—2801.保护地常用农药对蜡蚧轮枝菌菌丝生长影响研究李新民,王克勤,刘春来,徐伟钧(黑龙江省农业科学院植物保护研究所,哈尔滨15Oo86)摘要:6种杀虫剂和
3、6种杀菌剂对昆虫病原真菌蜡蚧轮枝茵茵丝生长影响的研究结果表明,杀虫剂对蜡蚧轮枝茵茵丝生长有程度不同的抑制作用.在田问常规使用浓度下,5种杀虫剂对茵丝生长的抑制率在10%以上,最高者为甲氰菊酯达17.6%.田间常规使用浓度稀释1O倍下,杀虫剂万灵,快灭净和锐劲特对茵丝生长抑制率低于5%,锐劲特在3.3～33.3mg/L时,菌丝生长与对照无显着差异,表现出与蜡蚧轮枝菌有极好的相容性,是菌药混用较好的候选杀虫剂.杀菌剂对蜡蚧轮枝茵茵丝生长有强烈的抑制作用,浓度愈高,抑制程度愈强.因此,在利用蜡蚧轮枝茵防治保护地蔬菜害虫时,须与杀菌剂使用保持一定的间隔期.关键词:
4、有害生物生物防治;杀虫剂;杀菌剂;相容性中图分类号:S476.12文献标识码:A文章编号:0529—1542[2003)o5—0019—03Tl_eeffectofemlmlelvJalchemicalsonthemyceliagrowthofVenicilliumlmmiiprotm~删LIXin—rain.WANGKe—qin.LIUChun—lai.XUWei—jun(InstituteofPlantProtectionHeilongjiangAcad田IyofcIdt枷Sei.e/Ices.Harbin15o()86.China)A由t:Theef
5、fectof12chemicalpesticides(6insecticidesand6fungiddes)widelyusedinprotectedculturewerein.vestigatedonentonx~thogenicfungusVerticilliumlecaniimyceliagrowth.Resultsshowedthatthe~ddesinhibitedthemy~liagrowthtoaoE~'tsirldegree.Inthefield-sprayconcentrationsrecommended.theratesofinbal~
6、itionofmy~Uagrowthby5insecticidesexceptfipronil5%FFcouldexceed10%:amongthemfenpropamte2O%exhibitedthestrongestinhibitionwiththeinhibitionrateof17.67%.Methornyl90%WPandimidadoprid10%WPexhibitedgoodecanpatibilitywithV.1ecanii;there吣nodifferreceformyceliagrowthbetweencontrolandn1暑aⅡn
7、融nbyfiprc~5%FFwithdose3.3—33.3mg/L.showinghighlycompatiblewithV.1ecanii.andsuggestingagoodcandidatefora)n1.bineduseofeheraiealandfungalinsecticide.Inaddition.differentstrainsweredifferentlysusceptibletoagiveninsecti.cide.Allfungicidesstronglyinhibitedmy~liagrowth.itissuggestedthat
8、usingV.1~aniiagainstinsectpestss~
