瓢蟲柄腹姬小蜂實驗種群及寄生效能影響因素的研究.pdf

1、江西農(nóng)業(yè)大學碩士學位論文瓢蟲柄腹姬小蜂實驗種群及寄生效能影響因素的研究姓名：涂小云申請學位級別：碩士專業(yè)：動物學指導教師：王國紅李火茍2003.4.1江西農(nóng)業(yè)大學碩士學位論文瓢蟲柄腹姬小蜂實驗種群及寄生效能影響因素的研究AbstractUnderthelaboratoryconditions，theeffectsoftemperaturesolanaceousplantsandhostlarvaeinsecticidesonPfoveo

2、]atuswerestudied1EffectsoftemperatureonP而veo]atusThetemperatureaffectedsignificantlyexperimentalpopulationandparasitizingefficacyofPfoveo]atusFrom19℃to34℃(RH75％)，theSurvivalrateofpupalstage，thelongevity。thedurationfromeg

3、gtoadultandthemeangenerationtimeofPfoveo]atusdecreasedwiththetemperatureincreasingTheoptimumtemperature(℃)forthenetreproductiverate(Ro)theintrinsicrateofnaturalincrease(r。)andthefiniterateofincrease(X)vras25℃孫was3067，rl惘

4、sn2150凡waS12399，respectivelYThefunctionalresponsesofPfoveolatustohostlarvaldensityweredescribedverywellbyHollingdiscequationIIatalltesttemperaturesTheinterferingresponsesofPfoveolatustoitselfdensityfittedtoA2ap。verywella

5、talltesttemperatureThe25℃一28℃with75％waSthefavorableconditionforPfoveolatus(Crawford)reproducingandparasitizing2Effectsofs01anaceousPlantandhostinstaronPfoveo]atusThe4”。instarhostlarvaefeedingleavesof5blanummelongenaLandl

6、eavesofSolanumnigrumLwerethefavorableconditionsforPfoveolatusparasitizingandreproducingThenumberofhostsparasitizedwas4004043perday，433043perday，respectivelyThenumberofoffspringpermummyWaS617028683O74。respectivelYThemaxim

7、umvaluesofsearchingrateinSolanumme]ongenaLgroupsandSolanumnigrumLgroupswere185，194，respectivelyOnthebranchesofSolanummeJongenaL。。SolanumnigrumL。PhysalisalkekengiLvatfranc]etii(Mast、MakandLycopersiconesculentumMillthemaxi

8、muminterferingcoefficientsinthegroupsofPhysalisalkekengiLvatfrancletii(Mast)MakandLycopersiconescu]entumMillwere050，O28，respectively3Effectsofdifferentinsecticideson尸，Dveo]atusUndertheexperimentalconcentrationofinsectici

9、des，Bt，AvermectinandCelangulinaffectedinsignificantlythepopulationmultiplicationof尸foveolatusforthisgenerationNoadultsemergedfromthemummiesofhostlarvaetreatedwithDichlorovosandCypermethrinThesearchingrateinAvermectingrou

10、pWaSmaximum，followedbyBtandCelangulingroupsThesearchingratesinDichlorovosandCypermethringroupsdecreasedsharplycomparedwithothers，whilethehandlingtimeincreasedrelativelYKeywords：Pfoveolatus，experimentpopulation，parasitizi