Residual action of insecticides to larvae of Chrysoperla externa (Hagen, 1861) (Neuroptera: Chrysopidae) under greenhouse conditions
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.
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Editora da UFLA
2003
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oai:scielo:S1413-705420030004000142011-02-25Residual action of insecticides to larvae of Chrysoperla externa (Hagen, 1861) (Neuroptera: Chrysopidae) under greenhouse conditionsCosta,Denilson BezerraSouza,BrígidaCarvalho,Geraldo AndradeCarvalho,César Freire Selectivity predator pesticides cotton 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.info:eu-repo/semantics/openAccessEditora da UFLACiência e Agrotecnologia v.27 n.4 20032003-08-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542003000400014en10.1590/S1413-70542003000400014 |
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Costa,Denilson Bezerra Souza,Brígida Carvalho,Geraldo Andrade Carvalho,César Freire |
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Costa,Denilson Bezerra Souza,Brígida Carvalho,Geraldo Andrade Carvalho,César Freire Residual action of insecticides to larvae of Chrysoperla externa (Hagen, 1861) (Neuroptera: Chrysopidae) under greenhouse conditions |
| author_facet |
Costa,Denilson Bezerra Souza,Brígida Carvalho,Geraldo Andrade Carvalho,César Freire |
| author_sort |
Costa,Denilson Bezerra |
| title |
Residual action of insecticides to larvae of Chrysoperla externa (Hagen, 1861) (Neuroptera: Chrysopidae) under greenhouse conditions |
| title_short |
Residual action of insecticides to larvae of Chrysoperla externa (Hagen, 1861) (Neuroptera: Chrysopidae) under greenhouse conditions |
| title_full |
Residual action of insecticides to larvae of Chrysoperla externa (Hagen, 1861) (Neuroptera: Chrysopidae) under greenhouse conditions |
| title_fullStr |
Residual action of insecticides to larvae of Chrysoperla externa (Hagen, 1861) (Neuroptera: Chrysopidae) under greenhouse conditions |
| title_full_unstemmed |
Residual action of insecticides to larvae of Chrysoperla externa (Hagen, 1861) (Neuroptera: Chrysopidae) under greenhouse conditions |
| title_sort |
residual action of insecticides to larvae of chrysoperla externa (hagen, 1861) (neuroptera: chrysopidae) under greenhouse conditions |
| 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. |
| publisher |
Editora da UFLA |
| publishDate |
2003 |
| url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542003000400014 |
| work_keys_str_mv |
AT costadenilsonbezerra residualactionofinsecticidestolarvaeofchrysoperlaexternahagen1861neuropterachrysopidaeundergreenhouseconditions AT souzabrigida residualactionofinsecticidestolarvaeofchrysoperlaexternahagen1861neuropterachrysopidaeundergreenhouseconditions AT carvalhogeraldoandrade residualactionofinsecticidestolarvaeofchrysoperlaexternahagen1861neuropterachrysopidaeundergreenhouseconditions AT carvalhocesarfreire residualactionofinsecticidestolarvaeofchrysoperlaexternahagen1861neuropterachrysopidaeundergreenhouseconditions |
| _version_ |
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