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Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/5744

Title: Residual action of insecticides to larvae of Chrysoperla externa (Hagen, 1861) (Neuroptera: Chrysopidae) under greenhouse conditions
???metadata.dc.creator???: Costa,Denilson Bezerra
Souza,Brígida
Carvalho,Geraldo Andrade
Carvalho,César Freire
Keywords: Selectivity
predator
pesticides
cotton
Publisher: Editora da Universidade Federal de Lavras
???metadata.dc.date???: 1-Aug-2003
Other Identifiers: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542003000400014
Description: ABSTRACT - 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.
???metadata.dc.language???: en
Appears in Collections:Ciência e Agrotecnologia

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