Bt cotton and the predator Podisus nigrispinus (Dallas) (Heteroptera: Pentatomidae) in the management of Spodoptera frugiperda ( J.E. Smith) (Lepidoptera: Noctuidae) resistance to lambda-cyhalothrin.

This study sought to provide relevant information for developing effective programs to manage Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) resistance to insecticides by quantifying and describing the interactions between cotton Bt and Podisus nigrispinus (Dallas) (Heteroptera; Pentatomidae) in the management of lambda-cyhalothrin resistance in S. frugiperda fed Bt cotton leaves expressing Cry1Ac (Bollgard, Monsanto, St Louis, MO, USA). These effects were assayed by studying functional responses. Third instar S. frugiperda larvae were used for the following treatments: strains resistant (1) or susceptible (2) to lambda-cyhalothrin fed Bollgard cotton leaves and strains resistant (3) or susceptible (4) to lambdacyhalothrin fed non-Bt cotton leaves. The predatory behavior of P. nigrispinus females was best represented by a sigmoid curve. The type of P. nigrisinus functional response was not affected by the cotton cultivar or S. frugiperda strain used in the trials. P. nigrispinus females invested a greater amount of handling time (Th) in S. frugiperda larvae that were suseptible to insecticides and fed non-Bt cotton (Th = 1.72 h) compared to those from the insecticide-resistant strain fed with Bt cotton (Th = 1.23 h) or even compared to those that were lambda-cyhalothrin resistant and fed Bt (Th = 1.17 h) or non-Bt cotton (Th = 1.17 h). The results in the present study can be applied in the development of management programs targeting S. frugiperda resistance to pyrethroid lambda-cyhalothrin. The integration of Bt cotton concurrent with biological control by the Asopinae P. nigrispinus is important for successfully managing S. frugiperda resistance to lambda-cyhalothrin.

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Bibliographic Details
Main Authors: MALAQUIAS, J. B., OMOTO, C., RAMALHO, F. de S., GODOY, W. A. C., SILVEIRA, R. F.
Other Authors: JOSE BRUNO MALAQUIAS, CNPA; CELSO OMOTO, USP/ESALQ; FRANCISCO DE SOUZA RAMALHO, CNPA; WESLEY AUGUSTO CONDE GODOY, USP/ESALQ; R. F. SILVEIRA, USP/ESALQ.
Format: Artigo de periódico biblioteca
Language:English
eng
Published: 2016-03-15
Subjects:Spodoptera frugiperda, cotton.,
Online Access:http://www.alice.cnptia.embrapa.br/alice/handle/doc/1041062
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spelling dig-alice-doc-10410622017-08-16T03:17:41Z Bt cotton and the predator Podisus nigrispinus (Dallas) (Heteroptera: Pentatomidae) in the management of Spodoptera frugiperda ( J.E. Smith) (Lepidoptera: Noctuidae) resistance to lambda-cyhalothrin. MALAQUIAS, J. B. OMOTO, C. RAMALHO, F. de S. GODOY, W. A. C. SILVEIRA, R. F. JOSE BRUNO MALAQUIAS, CNPA; CELSO OMOTO, USP/ESALQ; FRANCISCO DE SOUZA RAMALHO, CNPA; WESLEY AUGUSTO CONDE GODOY, USP/ESALQ; R. F. SILVEIRA, USP/ESALQ. Spodoptera frugiperda cotton. This study sought to provide relevant information for developing effective programs to manage Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) resistance to insecticides by quantifying and describing the interactions between cotton Bt and Podisus nigrispinus (Dallas) (Heteroptera; Pentatomidae) in the management of lambda-cyhalothrin resistance in S. frugiperda fed Bt cotton leaves expressing Cry1Ac (Bollgard, Monsanto, St Louis, MO, USA). These effects were assayed by studying functional responses. Third instar S. frugiperda larvae were used for the following treatments: strains resistant (1) or susceptible (2) to lambda-cyhalothrin fed Bollgard cotton leaves and strains resistant (3) or susceptible (4) to lambdacyhalothrin fed non-Bt cotton leaves. The predatory behavior of P. nigrispinus females was best represented by a sigmoid curve. The type of P. nigrisinus functional response was not affected by the cotton cultivar or S. frugiperda strain used in the trials. P. nigrispinus females invested a greater amount of handling time (Th) in S. frugiperda larvae that were suseptible to insecticides and fed non-Bt cotton (Th = 1.72 h) compared to those from the insecticide-resistant strain fed with Bt cotton (Th = 1.23 h) or even compared to those that were lambda-cyhalothrin resistant and fed Bt (Th = 1.17 h) or non-Bt cotton (Th = 1.17 h). The results in the present study can be applied in the development of management programs targeting S. frugiperda resistance to pyrethroid lambda-cyhalothrin. The integration of Bt cotton concurrent with biological control by the Asopinae P. nigrispinus is important for successfully managing S. frugiperda resistance to lambda-cyhalothrin. 2016-03-16T08:07:44Z 2016-03-16T08:07:44Z 2016-03-15 2015 2016-03-16T08:07:44Z Artigo de periódico Journal of Pest Science, v. 88, n. 1, p. 57-63, 2015. http://www.alice.cnptia.embrapa.br/alice/handle/doc/1041062 en eng openAccess
institution EMBRAPA
collection DSpace
country Brasil
countrycode BR
component Bibliográfico
access En linea
databasecode dig-alice
tag biblioteca
region America del Sur
libraryname Sistema de bibliotecas de EMBRAPA
language English
eng
topic Spodoptera frugiperda
cotton.
Spodoptera frugiperda
cotton.
spellingShingle Spodoptera frugiperda
cotton.
Spodoptera frugiperda
cotton.
MALAQUIAS, J. B.
OMOTO, C.
RAMALHO, F. de S.
GODOY, W. A. C.
SILVEIRA, R. F.
Bt cotton and the predator Podisus nigrispinus (Dallas) (Heteroptera: Pentatomidae) in the management of Spodoptera frugiperda ( J.E. Smith) (Lepidoptera: Noctuidae) resistance to lambda-cyhalothrin.
description This study sought to provide relevant information for developing effective programs to manage Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) resistance to insecticides by quantifying and describing the interactions between cotton Bt and Podisus nigrispinus (Dallas) (Heteroptera; Pentatomidae) in the management of lambda-cyhalothrin resistance in S. frugiperda fed Bt cotton leaves expressing Cry1Ac (Bollgard, Monsanto, St Louis, MO, USA). These effects were assayed by studying functional responses. Third instar S. frugiperda larvae were used for the following treatments: strains resistant (1) or susceptible (2) to lambda-cyhalothrin fed Bollgard cotton leaves and strains resistant (3) or susceptible (4) to lambdacyhalothrin fed non-Bt cotton leaves. The predatory behavior of P. nigrispinus females was best represented by a sigmoid curve. The type of P. nigrisinus functional response was not affected by the cotton cultivar or S. frugiperda strain used in the trials. P. nigrispinus females invested a greater amount of handling time (Th) in S. frugiperda larvae that were suseptible to insecticides and fed non-Bt cotton (Th = 1.72 h) compared to those from the insecticide-resistant strain fed with Bt cotton (Th = 1.23 h) or even compared to those that were lambda-cyhalothrin resistant and fed Bt (Th = 1.17 h) or non-Bt cotton (Th = 1.17 h). The results in the present study can be applied in the development of management programs targeting S. frugiperda resistance to pyrethroid lambda-cyhalothrin. The integration of Bt cotton concurrent with biological control by the Asopinae P. nigrispinus is important for successfully managing S. frugiperda resistance to lambda-cyhalothrin.
author2 JOSE BRUNO MALAQUIAS, CNPA; CELSO OMOTO, USP/ESALQ; FRANCISCO DE SOUZA RAMALHO, CNPA; WESLEY AUGUSTO CONDE GODOY, USP/ESALQ; R. F. SILVEIRA, USP/ESALQ.
author_facet JOSE BRUNO MALAQUIAS, CNPA; CELSO OMOTO, USP/ESALQ; FRANCISCO DE SOUZA RAMALHO, CNPA; WESLEY AUGUSTO CONDE GODOY, USP/ESALQ; R. F. SILVEIRA, USP/ESALQ.
MALAQUIAS, J. B.
OMOTO, C.
RAMALHO, F. de S.
GODOY, W. A. C.
SILVEIRA, R. F.
format Artigo de periódico
topic_facet Spodoptera frugiperda
cotton.
author MALAQUIAS, J. B.
OMOTO, C.
RAMALHO, F. de S.
GODOY, W. A. C.
SILVEIRA, R. F.
author_sort MALAQUIAS, J. B.
title Bt cotton and the predator Podisus nigrispinus (Dallas) (Heteroptera: Pentatomidae) in the management of Spodoptera frugiperda ( J.E. Smith) (Lepidoptera: Noctuidae) resistance to lambda-cyhalothrin.
title_short Bt cotton and the predator Podisus nigrispinus (Dallas) (Heteroptera: Pentatomidae) in the management of Spodoptera frugiperda ( J.E. Smith) (Lepidoptera: Noctuidae) resistance to lambda-cyhalothrin.
title_full Bt cotton and the predator Podisus nigrispinus (Dallas) (Heteroptera: Pentatomidae) in the management of Spodoptera frugiperda ( J.E. Smith) (Lepidoptera: Noctuidae) resistance to lambda-cyhalothrin.
title_fullStr Bt cotton and the predator Podisus nigrispinus (Dallas) (Heteroptera: Pentatomidae) in the management of Spodoptera frugiperda ( J.E. Smith) (Lepidoptera: Noctuidae) resistance to lambda-cyhalothrin.
title_full_unstemmed Bt cotton and the predator Podisus nigrispinus (Dallas) (Heteroptera: Pentatomidae) in the management of Spodoptera frugiperda ( J.E. Smith) (Lepidoptera: Noctuidae) resistance to lambda-cyhalothrin.
title_sort bt cotton and the predator podisus nigrispinus (dallas) (heteroptera: pentatomidae) in the management of spodoptera frugiperda ( j.e. smith) (lepidoptera: noctuidae) resistance to lambda-cyhalothrin.
publishDate 2016-03-15
url http://www.alice.cnptia.embrapa.br/alice/handle/doc/1041062
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