Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/774973
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dc.contributor.authorGUILLOUX, T.
dc.contributor.authorMONNERAT, R.
dc.contributor.authorCASTELO BRANCO, M.
dc.contributor.authorBORDAT, D.
dc.date.accessioned2024-10-14T18:53:46Z-
dc.date.available2024-10-14T18:53:46Z-
dc.date.created2003-12-09
dc.date.issued2003
dc.identifier.citationJournal of Applied Entomology, v. 127, p. 288-292, 2003.
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/774973-
dc.descriptionThe diamond back moth Plutella xylostella (L.) is the most serious pest of Brassicaceae in the world. It is resistant to many insecticides which has led to a search for alternative techniques of control, principally biocontrol based pest management. The impact of P. xylostella and its parasitoids was analysed in a 6-month study of cabbage crops in the Brasilia region of Brazil, from June to November 1998. The population of the pest and its guild of parasitoids were quantified on two experimental plots at the Embrapa-Hortalicas research station by weekly samplings. In the first cropping (June to early September), populations of P. xylostella followed a logisticgrowth curve leading to the destruction of the crops. In the second cropping, rains prevented the development of P. xylostella. Seven species of parasitoids were observed, Diadegma leontiniae (Brethes) and Apanteles piceotrichosus (Blanchard) being dominant. Cotesia plutellae (Kurdjumov) and Actia sp., previously more abundant, became very minor parasitoids. Significant differences were observed in specific parasitism rates between the plots. The combined parasitism rates were identical on both plots (around 23%) and were insufficient to regulate the populations of P. xylostella. Six species of hyperparasites were reared from Diadegma leontiniae and Apanteles piceotrichosus, showing a high diversity of natural enemies in this region of recent colonization by P. xylostella.
dc.language.isoeng
dc.rightsopenAccess
dc.subjectParasitóide
dc.subjectResistência inseticida
dc.titlePopulation dynamics of Plutella xylostella (Lep., Yponomeutidae) and its parasitoids in the region of Brasilia.
dc.typeArtigo de periódico
dc.subject.thesagroBrassica Oleracea Capitata
dc.subject.thesagroControle Biológico
dc.subject.thesagroDinâmica Populacional
dc.subject.thesagroFlutuação Populacional
dc.subject.thesagroInseto
dc.subject.thesagroPlutella Xylostella
dc.subject.thesagroPraga
dc.subject.thesagroRepolho
riaa.ainfo.id774973
riaa.ainfo.lastupdate2024-10-14
dc.contributor.institutionMARINA CASTELO BRANCO, CNPH.
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