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Life table analysis of Diaphorina citri (Hemiptera: Psyllidae) infesting sweet orange (Citrus sinensis) in São Paulo

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dc.contributor.authorPaiva, Paulo
dc.contributor.authorParra, José
dc.date.accessioned2019-02-05T17:28:22Z
dc.date.available2019-02-05T17:28:22Z
dc.date.issued2012
dc.description.abstractAn ecological life table for eggs and nymphs of Diaphorina citri Kuwayama (Hemiptera: Psyllidae) was constructed with data obtained from orange orchards (Citrus sinensis Osbeck) in 2 regions of the State of São Paulo, over 4 generations in the period from XI-2006 to V-2007, comprising spring, summer, and fall seasons. Young growing shoots with D. citri eggs present were identifed, and live individuals were counted until adult emergence. No predatory arthropods were observed in association with D. citri eggs and nymphs during the study. The mean parasitism of fourth- and ffth-instar nymphs by Tamarixia radiata Waterston (Hymenoptera: Eulophidae) was 2.3%. The durations of the egg–adult period were similar among the 4 generations, ranging from 18.0 to 24.7 d (at mean temperatures ranging from 21.6 to 26.0 °C) and followed the temperature requirement models obtained in the laboratory for D. citri. However, survival from the egg to the adult stage for the same period varied considerably from 1.7 to 21.4%; the highest mortalities were observed in the egg and small nymphal (frst- to thirdinstar) stages, which were considered to be key phases for population growth of the pest.pt_PT
dc.description.abstractUma tabela de vida ecológica foi construída para ovos e ninfas de Diaphorina citri Kuwayama (Hemiptera: Psyllidae) com dados obtidos em pomares de laranja (Citrus sinensis Osbeck) em 2 regiões do estado de São Paulo, com 4 gerações, no período de novembro de 2006 a maio de 2007, compreendendo as estações de primavera, verão e outono. Ramos jovens em crescimento com a presença de ovos de D. citri foram identificados e os indivíduos vivos foram contados até a emergência dos adultos. Nenhum predador foi observado associado a ovos e ninfas de D. citri durante o estudo. A taxa média de parasitismo de ninfas de quarto e quinto ínstares por Tamarixia radiata Waterson (Hymenoptera: Eulophidae) foi de 2.3%. A duração do período de ovo a adulto foi semelhante entre as quatro gerações, variando de 18.0 a 24.7 dias (com temperaturas médias de 21.6 a 26.0 °C) e seguiram os modelos de exigencias térmicas obtidas em laboratório para D. citri. Todavia, a sobrevivencia de ovo até o estágio adulto variou consideravelmente para o mesmo período, de 1.7 a 21.4%, sendo que as maiores mortalidades foram observadas nos estágios de ovos e ninfas pequenas (de primeiro a terceiro ínstares), as quais foram consideradas fases chaves para o crescimento populacional desta praga.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doihttps://doi.org/10.1653/024.095.0206pt_PT
dc.identifier.issn0015-4040
dc.identifier.urihttp://hdl.handle.net/10400.1/12322
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherFlorida Entomological Societypt_PT
dc.subjectAbiotic mortality factorpt_PT
dc.subjectCitrus psyllidpt_PT
dc.subjectEcologypt_PT
dc.subjectHLBpt_PT
dc.subjectTemperature requirement modelpt_PT
dc.titleLife table analysis of Diaphorina citri (Hemiptera: Psyllidae) infesting sweet orange (Citrus sinensis) in São Paulopt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage284pt_PT
oaire.citation.issue2pt_PT
oaire.citation.startPage278pt_PT
oaire.citation.titleFlorida Entomologistpt_PT
oaire.citation.volume95pt_PT
person.familyNamePaiva
person.givenNamePaulo
person.identifier.orcid0000-0002-9859-4251
person.identifier.ridU-3537-2018
person.identifier.scopus-author-id25026264100
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicatione0dd18f5-07a7-4858-8eaa-3353bc9f8c48
relation.isAuthorOfPublication.latestForDiscoverye0dd18f5-07a7-4858-8eaa-3353bc9f8c48

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