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ID:18029066
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页数:5页
时间:2018-09-13
《2.7%氟虫脲·甲维盐对飞蝗的室内毒力测定及田间防效》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、虿此磨掌握2009,18(5):88—92ActaAgriculturaeBoreali—occidentalisSinica2.7%氟虫脲·甲维盐对飞蝗的室内毒力测定及田间防效李娟,王斌,卫军峰,柳树斌。,任富平,安德荣(1.西北农林科技大学植物保护学院,陕西省农业分子生物学重点实验室,陕西杨凌712100;2.陕西省植保总站西安710003;3.韩城市植保站,陕西韩城715400;4.陕西省农技推广中心,西安710003)摘要:为寻求防治飞蝗的高效、低毒农药,在室内毒力测定技术的基础上,通过室内配方筛选试验,将氟虫脲与
2、甲维盐进行复配,对飞蝗3龄蝗蝻进行室内生物测定。结果表明,氟虫脲与甲维盐以有效成分8:1复配对飞蝗杀虫活性最高,共毒系数达528.6,增效作用显著。以有效成分复配成2.7混剂进行田间笼罩药效试验,2.7氟虫脲·甲维盐速效性与持效性均优于单剂,与单剂进行差异显著性比较,具0.05的显著性差异和0.01的显著性差异水平。防后第8天飞蝗的死亡率达96.9,可作为替代高毒农药的优良药种。关键词:氟虫脲;甲维盐;飞蝗;室内配方筛选;毒力测定;共毒系数;差异显著性中图分类号:$481.9文献标识码:A文章编号:1004—1389(20
3、09)05—0088—05ToxicityDeterminationandControlEffectof2.7%FlufenoxuronandEmamectinBenzoateonLocustLIJuan,WANGBin,WEIJunfeng,LIUShubin。,RenFupingandANDerong(1.PlantProtectionCollege,NorthwestA8LFUniversity,ShaanxiKeyLaboratoryofMolecularBiologyforAgriculture,Yangling
4、Shaanxi712100,China;2.ShaanxiMasterStationofPlantProtection,Xi’an710003,China;3.HanchengStationofPlantProtection.HanchengShaanxi715400,China;4.AgriculturalTechnologyPromotionCenterinShaanxiProvince,Xi’an710003,China)Abstract:Thetrialswereconducedonthehighactivitya
5、ndlowtoxicitypesticideagainstthelocust.Apracticalformulaselectioninlaboratorymethodfor3agenymphaeoflocustwhichmixedwithflufenoxuronandemamectinbenzoatebasedonthebioassaytechniquesinlaboratory.AimedtoTheresultsshowthatinsecticidalactivitywasthehighestwhenflufenoxur
6、onmixedwithemamectinbenzo—ateintheratioof8:1throughexperiment.CTCis528.6.SynergismbetweenthetWOinsecticideswassignificant.Theresultofthefieldtrialshowedthatflufenoxuron十emamectinbenzoate2.7workedveryquicklyandmaintainedverylongtime.Thetestofsignificanceofdifferenc
7、ealsoindica—tedthatthemixturehad5significanceofdifferenceand1significanceofdifferencecomparedwithsingledose.anditsinsecticidaleffectagainstthelocustreached96.9the8thday,SOitwasaneffi—cientpesticidetoreplacehightoxicpesticides.Keywords:Flufenoxuron;Emamectinbenzoat
8、e;Locust;Formulaselectioninlaboratory;Toxicitytest;Co—toxicitycoefficient;Significanceofdifference飞蝗是一种毁灭性农业害虫,历史上蝗灾与蔽日,其所到之处,“食百草无遗,牛马相瞰毛”,水灾、旱灾并称为三大自然
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