Data/hora: 24/06/2024 23:06:09

Biblioteca(s): | Embrapa Algodão; Embrapa Recursos Genéticos e Biotecnologia; Embrapa Unidades Centrais.
Data corrente: | 05/08/2016
Data da última atualização: | 14/02/2017
Autoria: | MORAES, M. C. B.; BORGES, M.; VIANA, A. R.; LAUMANN, R. A.; MIRANDA, J. E.; MAGALHÃES, D. M.; BIRKETT, M. A.
Afiliação: | MARIA CAROLINA BLASSIOLI MORAES, Cenargen; MIGUEL BORGES, Cenargen; AMANDA RODRIGUES VIANA, CENARGEN; RAUL ALBERTO LAUMANN, Cenargen; JOSE EDNILSON MIRANDA, CNPA; DIEGO MARTINS MAGALHÃES, UNB; MICHAEL A. BIRKETT, Biological Chemistry and Crop Protection Department.
Título: | Identification and field evaluation of the sex pheromone of a brazilian population of Spodoptera cosmioides.
Ano de publicação: | 2016
Fonte/Imprenta: | Pesquisa Agropecuária Brasileira, Brasília v. 51, n. 5, p. 545-554, maio 2016.
DOI: | 10.1590/S0100-204X2016000500015
Idioma: | Inglês
Conteúdo: | The objective of this work was to identify the sex pheromone of Spodoptera cosmioides and to evaluate whether there is pheromone cross?attraction in Spodoptera sp. (Lepidoptera: Noctuidae). Spodoptera cosmioides gland extracts were analyzed by GC?FID and GC?MS. Wind tunnel and electrophysiology experiments were conducted to evaluate the role of gland compounds. In the field, different pheromone traps were tested: S. frugiperda commercial lure; (9Z)?9?tetradecenyl acetate (Z9?14:OAc) and (9Z,12E)?9,12?tetradecadienyl acetate (Z9,E12?14:OAc) trap; two females of S. cosmioides trap; and hexane control trap. Four acetates were identified in the S. cosmioides female gland extracts as Z9?14:OAc, Z9,E12?14:OAc, (11Z)?11?hexadecenyl acetate (Z11?16:OAc) and hexadecyl acetate (16:OAc), but only the first two acetates induced electrophysiological responses from S. cosmioides male antennae. In wind tunnel experiments, S. cosmioides and S. frugiperda males responded more strongly to conspecific blends; however, there was some cross?attraction, as 47% males of S. frugiperda and 25% males of S. cosmioides responded to heterospecific blends. In field experiments, S. frugiperda and S. cosmioides showed the same response pattern as observed in the wind tunnel bioassays. In summary, the sex pheromone components of S. cosmioides are Z9?14:OAc and Z9,E12?14OAc; they are important for conferring species specificity, and there is pheromone-mediated cross attraction between S. frugiperda and S. cosmioides.
Palavras-Chave: | (9Z 12E)-9; 12-tetradecadienila; 12-tetradecadienyl acetate; Acetato de(9Z 12E); Acetato de(9Z)-9-tetradecenila; Armadilha feromonal; Atração cruzada; Cross-attraction; Eletrofisiologia; Monitoramento de praga.
Thesaurus Nal: | Electrophysiology; Pest monitoring; Pheromone traps.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/146113/1/Identification-and-field-evaluation.pdf
Registro original: | Embrapa Recursos Genéticos e Biotecnologia (CENARGEN)

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