Residual action of insecticides to larvae of Chrysoperla externa (Hagen, 1861) (Neuroptera: Chrysopidae) under greenhouse conditions

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dc.creatorCosta,Denilson Bezerra
dc.creatorSouza,Brígida
dc.creatorCarvalho,Geraldo Andrade
dc.creatorCarvalho,César Freire
dc.date2003-08-01
dc.date.accessioned2015-04-30T13:32:47Z
dc.date.available2015-04-30T13:32:47Z
dc.date.issued2015-04-30
dc.descriptionABSTRACT - This work was designed to evaluate the residual action of the insecticides trichlorfon, triflumuron, endosulfan, fenpropathrin, chlorpirifos, tebufenozide and esfenvalerate, sprayed on cotton plants, to second-instar larvae of Chrysoperla externa (Hagen, 1861), under greenhouse conditions. The experimental design was completely randomized with ten replicates. Three larvae were released on each plant, in the 1st, 12th and 23rd day after pesticides spray. Tebufenozide and esfenvalerate were little persistent (class one), while trichlorfon, triflumuron and endosulfan were slightly persistent, decreasing the survival of C. externa larvae over 30%, up to 14 days after spray. Fenpropathrin and chlorpirifos caused mortality over 30%, up to 25 days after spray, being classified as fairly persistent.
dc.formattext/html
dc.identifierhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542003000400014
dc.identifier.urihttps://repositorio.ufla.br/handle/1/5744
dc.publisherEditora da Universidade Federal de Lavras
dc.sourceCiência e Agrotecnologia v.27 n.4 2003
dc.subjectSelectivity
dc.subjectpredator
dc.subjectpesticides
dc.subjectcotton
dc.titleResidual action of insecticides to larvae of Chrysoperla externa (Hagen, 1861) (Neuroptera: Chrysopidae) under greenhouse conditions
dc.typejournal article

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Ciência e Agrotecnologia