Registro Completo |
Biblioteca(s): |
Embrapa Meio Ambiente. |
Data corrente: |
25/03/1991 |
Data da última atualização: |
20/07/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
MCCUTCHEN, B. F.; PLAPP JUNIOR, F. W.; NEMEC, S. J.; CAMPANHOLA, C. |
Afiliação: |
B. F. MCCUTCHEN, TEXAS A&M UNIVERSITY, COLLEGE STATION; F.W. PLAPP JUNIOR, TEXAS A&M UNIVERSITY, COLLEGE STATION; S. J. NEMEC, TEXAS A&M UNIVERSITY, COLLEGE STATION; CLAYTON CAMPANHOLA, CNPMA - EMBRAPA. |
Título: |
Development of diagnostic monitoring techniques for larval pyrethroid resistance in Heliothis spp. (Lepidoptera: Noctuidae) in cotton. |
Ano de publicação: |
1989 |
Fonte/Imprenta: |
Journal of Economic Entomology, v. 82, n. 6, p. 1502-1507, dec. 1989. |
Idioma: |
Inglês |
Conteúdo: |
Techniques were developed to monitor pyrethroid resistance in larval stages of the tobacco budworm, Heliothis virescens (F.), and the bollworm, H. zea (Boddie). Neonate larvae as well as the other instars of a susceptible to tobacco budworm strain were tested with cypermethrin with a glass vial technique to estimate concentration-mortality lines. An approximate LC 80-90 was selected to discriminate for resistance in each larval stage. Tests with pyrethroid-resistent tobacco budworms at these concentrations showed minimal mortality. Tests with bollworm larvae result in 93-100% mortality for the different stages. A formula [100 - (MF/MS X 100)] allowed us to determine the percentage of insects resistant in the field and simultaneously to correct for partial survival of susceptible insects at the discriminating concentration used. The methods were then tested on field-collected insects at times when numbers of eggs, larvae, or both, justified concern. Accuracy of the method was confirmed with another technique for measuring insecticide resistance. These techniques were developed to supplement monitoring data for adult resistance, to provide timely and producers or consultants with a predictive biossay useful in detecting resistance before an insecticide application. |
Palavras-Chave: |
Control; Diagnosis; Heliothis spp; Insect; Insecticide; Pest; Pyrethroid; Resistance; Technique; Tobacco budworm. |
Thesagro: |
Heliothis Armigera; Heliothis Virescens; Heliothis Zea. |
Thesaurus Nal: |
cotton; Lepidoptera; monitoring; Noctuidae. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02301naa a2200361 a 4500 001 1009940 005 2018-07-20 008 1989 bl uuuu u00u1 u #d 100 1 $aMCCUTCHEN, B. F. 245 $aDevelopment of diagnostic monitoring techniques for larval pyrethroid resistance in Heliothis spp. (Lepidoptera$bNoctuidae) in cotton.$h[electronic resource] 260 $c1989 520 $aTechniques were developed to monitor pyrethroid resistance in larval stages of the tobacco budworm, Heliothis virescens (F.), and the bollworm, H. zea (Boddie). Neonate larvae as well as the other instars of a susceptible to tobacco budworm strain were tested with cypermethrin with a glass vial technique to estimate concentration-mortality lines. An approximate LC 80-90 was selected to discriminate for resistance in each larval stage. Tests with pyrethroid-resistent tobacco budworms at these concentrations showed minimal mortality. Tests with bollworm larvae result in 93-100% mortality for the different stages. A formula [100 - (MF/MS X 100)] allowed us to determine the percentage of insects resistant in the field and simultaneously to correct for partial survival of susceptible insects at the discriminating concentration used. The methods were then tested on field-collected insects at times when numbers of eggs, larvae, or both, justified concern. Accuracy of the method was confirmed with another technique for measuring insecticide resistance. These techniques were developed to supplement monitoring data for adult resistance, to provide timely and producers or consultants with a predictive biossay useful in detecting resistance before an insecticide application. 650 $acotton 650 $aLepidoptera 650 $amonitoring 650 $aNoctuidae 650 $aHeliothis Armigera 650 $aHeliothis Virescens 650 $aHeliothis Zea 653 $aControl 653 $aDiagnosis 653 $aHeliothis spp 653 $aInsect 653 $aInsecticide 653 $aPest 653 $aPyrethroid 653 $aResistance 653 $aTechnique 653 $aTobacco budworm 700 1 $aPLAPP JUNIOR, F. W. 700 1 $aNEMEC, S. J. 700 1 $aCAMPANHOLA, C. 773 $tJournal of Economic Entomology$gv. 82, n. 6, p. 1502-1507, dec. 1989.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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