防治甜菜夜蛾的高毒農藥替代藥劑篩選及對茚蟲威和溴蟲腈的抗性選育.pdf

1、Y9389Z飛嚼募t文普碩十學位論文防治甜菜夜蛾的高毒農藥替代藥劑篩選及對茚蟲威和溴蟲腈的抗性選育SelectionofSubstituteChemicals南rH碘AcuteToxicityPesticidesforSpodopteraexigua(HObner)aDdtheResistanceselectiontoIndoxacarbaridCblorfermpyr研究生—盛擔違—一指導教師—三醋笪L熬援一申請學位門婁級別—jl生亟

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3、oninsecticidesforcontrolofthispesthasresultedintheemergenceofresistancetoavarietyofinsecticidesNowtheamountofinsecticide：methamidophos、parthionmethyl、parathion、monocrotophns、phosphamidonaccountforoveT25％oftotalpesticidei

4、nnseAgriculturaldepartmentandcommitteeofdevelopmentandreformationhasestablishtoclearupschemeforthosehightoxicityspecies，thisschemewillgointoeffectfrom2007，11，andwillforbidtheuseofthosehightoxicitypesticideinagricultureTh

5、eobjectivesofthisresearchweretodeterminethetoxicityofthebioactivityOf12kin&ofsubstitudedpesticidesandtheireffectsontherelativesusceptiblepopulation12insecticidesofdifferentmechanismofactionincludingememectinbenzoate、indo

6、xaearb、chlorfenapyr，spinosad，furentebofenozide，chlorlluazuron，tebufenozide，hexaflumuron、phoxim，chlorpyrifos、profenofosandfenoxycarb，hasbeenchosenforthetestusingdippingleafmethodspodopteraexigualarvafortestwerefedwimsynth

7、eticfeedstaffforgenerationsTheresultsshowedthatemamectinbenzoateandothcrseveninsecticidesshowedhighertoxicityto3instarspodopteraexigualarvaAndchlorfenapyrandindoxacarbbothhavehighel“toxicitytolowinstarbeetam“Ⅷm，butstillh

8、avehighactivitytotheelderollesThetoxicityto3instarSpodopteraexigualarvarankingwas：emamectinbenzoateindoxacarbchlorfenapyrspinosadfurantebuenozidechlorfluazurontehufenozidehexaflumuronphoximchlorpyrifosprofenofosfenoxycar

9、bAndtheexperimenton5instarlarva’SsensitivitytoindoxacarbandchlorfenapyrshowedthatthetoleranceincreasedastheinstarofthelarvaincreasedButtheystillhadBgoodactivityAfterselectionfor7generationsinthelaboratorySexiguashowed449