安徽省東亞飛蝗發(fā)生規(guī)律及生態(tài)調(diào)控技術(shù)研究.pdf

1、安徽農(nóng)業(yè)大學(xué)碩士學(xué)位論文安徽省東亞飛蝗發(fā)生規(guī)律及生態(tài)調(diào)控技術(shù)研究姓名：張啟勇申請學(xué)位級別：碩士專業(yè)：農(nóng)業(yè)推廣植保技術(shù)推廣指導(dǎo)教師：李桂亭包文新20081201AbstractMigratoryLocustaewasapestwhichhappenedfrequently、endangeredlongtimeandseriouslyinthehistoryofAnhuiprovinceInrecentyears，ithappenedinc

2、reasinglyseriousTherewerethreetypesofLocustaeareawhichwereriver、lakeandfloodItmainlvdistributedin7citiesand16towns(cities，district)ofHuaibeiandregionsthatalorigHuaiheThetotalareawas94268haTheseconstitutedLocustae’Scharac

3、teristicofAnhuiprovinceMigratoryLocustaeoftenhappenedtwogenerationsinoneyearandsometimesthree(nonfull)indroughtyearsItwasthatAutumnLocustaeoccurredplentifullyandharmedseriouslyThefactorsthatinfluencedLocustae’Soccurrence

4、werehydrologyconditions、vegetationtypesandcoverage、farmingsystems、naturalenemiesandSOonTheoccurrenceareaandspeciesgroupdensitywasclosedwithwaterlevelfluctuationandfloodtimeTheGramineaeandCyperaceaewereLocustae’SmainhostT

5、heDicotyledoncouldbetemporaryhost，however，itwasbadforLocustaetogrowup，breedaIldSOonThehighvegetationcoveragehadobviousinfluenceonLocustae’SspawningandspeciesgroupTheappropriaterateWas20％60％30％50％Wasthemostappropriaterate

6、andspawningquantitymaybe80％intotalspawnIftheratelargerthan80％，thereWasleastspawnAutumntillage’sfrequencyanddepthwereoPPositetowinterssurvivalrateofspawnTheeffectivemeasurewhichcontrollingLocustaeWasdeeplytillSOastoelimin

7、atewinter’SsurvivalspawnManynaturalen鋤ieswhichwere41kindsand7classesexistedinnaturalecosystemandinhibitedLocustaeinnaturalconditionsThebiologicalagentswhichwereNosemaLocustae，Metarhiziumanisopliae，Matrinecouldeffectively

8、controlLocustaeNosemacouldverticalspreadAlloftheseweresaffyandeffectiveagentsinlow—densityLocustaeareaLocustae’Spreventionmethodwere‘rebuildingandgoverning，thoroughlyeliminateLocustae’“Plantprotection，biologyprotection，r

9、esourceprotectionandenvironmentprotection”shouldbecombinetopreventThemainmeasurewereimprovingsoil，rebuildingofplantandenvironment，protectingandusingnaturalenemies，usingmicrobiologyagentsItWasbettertouseefficient，low。noxi