Data/hora: 18/06/2024 13:39:36

Biblioteca(s): | Embrapa Milho e Sorgo.
Data corrente: | 05/07/2019
Data da última atualização: | 24/01/2020
Autoria: | COSTA, V. H. D. da; SOARES, M. A.; DIMATE, F. A. R.; SÁ, V. G. M. de; ZANUNCIO, J. C.; VALICENTE, F. H.
Afiliação: | Victor Hugo Duarte da Costa, Universidade Federal dos Vales do Jequitinhonha e Mucuri; Marcus Alvarenga Soares, Universidade Federal dos Vales do Jequitinhonha e Mucuri; Francisco Andrés Rodriguez Dimate, Universidade Federal de Viçosa; Veríssimo Gibran Mendes de Sá, Universidade Federal de Viçosa; José Cola Zanuncio, Universidade Federal de Viçosa; FERNANDO HERCOS VALICENTE, CNPMS.
Título: | Genetic identification and biological characterization of Baculovirus isolated from Helicoverpa armigera (Lepidoptera: Noctuidae) in Brazil.
Ano de publicação: | 2019
Fonte/Imprenta: | Florida Entomologist, v. 102, n. 1, p. 59-64, 2019.
DOI: | 10.1653/024.102.0109
Idioma: | Inglês
Conteúdo: | Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) larvae are polyphagous, aggressive, and have been found in many of Brazil?s agricultural areas. Biological control with baculoviruses is part of an integrated pest management (IPM) strategy to manage this insect. Three isolates of nucleopolyhedrovirus (NPV) were collected from Brazilian populations of H. armigera, and compared genetically and biologically to Gemstar® (an imported nucleopolyhedrovirus), and to Nucleopolyedrovirus spodoptera (SPNPV) that was passed serially through H. armigera. Genetic sequencing of lef-8 and lef-9 genes revealed that the Brazilian isolates were closely related to nucleopolyhedrovirus species from Australia, South Africa, China, and India. The isolates caused high mortality rates in third instar H. armigera larvae. The mean lethal dose (LD50) and lethal time (LT50) differed between isolates, but was highest for HearNPV-BR2. This is the first report of HearNPV in Brazil, and the insecticidal properties of the BR2 isolate support its potential use in the production of biopesticides to manage H. armigera in Brazil.
Palavras-Chave: | Adaptação de bacuvírus; Nucleopoliedrovírus; Transmissão vertical.
Thesagro: | Controle Biológico.
Categoria do assunto: | H Saúde e Patologia
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/199213/1/Genetic-identification.pdf
Registro original: | Embrapa Milho e Sorgo (CNPMS)
Exemplares: | CNPMS - (28872-1) - UPC - AP - DD -  -  -  - DIS