小麦害虫包括黑麦粉虱的回归.pdf

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1、Wheat Insect Pestsincluding,the return of the Hessian flyTyler WistAAFC SaskatoonField Crop EntomologistTyler.Wistagr.gc.caTylerWist1The return of the Hessian fly Mayetiola destructor (Diptera:Cecidomyiidae)HPIPM:Hessian Fly-BugwoodwikiFemale Hessian fly4mm Only live 2 daysThe return of the Hessian

2、fly Mayetiola destructor (Diptera:Cecidomyiidae)Source:Hessian Fly(Diptera:Cecidomyiidae)Biology andManagement in WheatRyan B.Schmid,Allen Knutson,Kristopher L.Giles,and Brian P.McCornackJournal of Integrated Pest Management,(2018)9(1):14;112doi:10.1093/jipm/pmy008Damaging stage are the larvae 4.8 m

3、m Oviposition larvae,pupaeFrank B.Peairs1,Gary L.Hein&Michael J.BrewerEggs,larvae,pupae.Source:Hessian Fly(Diptera:Cecidomyiidae)Biology andManagement in WheatRyan B.Schmid,Allen Knutson,Kristopher L.Giles,and Brian P.McCornackJournal of Integrated Pest Management,(2018)9(1):14;112doi:10.1093/jipm/p

4、my008“A single larva,feeding for just 3 days,is capable of stunting a young wheat plant or tiller.”Manitoba Ag.Hessian fly,Mayietola destructor(Cecidomyiidae)1st sighting in 2023,more sites at 5%infestation in 2024.Contact Tyler with sightingsTyler.Wistagr.gc.caPlease!2nd gen“flaxseed”puparia at joi

5、nt of spring wheatHessian fly lifecycle:info courtesy of Manitoba AgMayJuneJulyAugustSeptemberLarvae pupate,flies emerge and begin laying eggsEgg laying,hatching,larval feeding in spring wheatFlaxseed stage in stubbleFlaxseed stage in stubbleFlies emerge,lay eggs,larvae feed in winter wheatSpring ge

6、neration:emerges from winter wheat to attack spring wheatLikely can also overwinter on wild grasses“quackgrass,western wheatgrass,rye grasses Fall generation:from spring to winter wheatLodging of spring wheatControl of Hessian fly South of the border resistant wheat cultivars(R-genes)in the US optim