Data/hora: 15/06/2024 14:12:59

Biblioteca(s): | Embrapa Milho e Sorgo.
Tipo da produção científica: | Artigo em Periódico Indexado
Circulação/Nível: | B - 2
Data corrente: | 18/12/2018
Data da última atualização: | 19/03/2019
Autoria: | SILVA, I H. S. da; COSTA, V. H. D. da; CURY, J. de C.; VALICENTE, F. H.; POLANCZYK, R. A.
Afiliação: | IGOR HENRIQUE SENA DA SILVA, Universidade Estadual Paulista "Júlio de Mesquita Filho"; VICTOR HUGO DUARTE DA COSTA, Universidade Federal de Lavras; JULIANO DE CARVALHO CURY, Universidade Federal de São João Del Rei; FERNANDO HERCOS VALICENTE, CNPMS; RICARDO ANTONIO POLANCZYK, Universidade Estadual Paulista "Júlio de Mesquita Filho".
Título: | The infectivity of SfMNPV on fall armyworm is influenced by the host plant.
Ano de publicação: | 2018
Fonte/Imprenta: | Revista Brasileira de Milho e Sorgo, Sete Lagoas, v. 17, n. 3, p. 369-379, 2018.
Idioma: | Inglês
Conteúdo: | This work evaluated the infectivity and production of occlusion bodies (OBs) of the SfMNPV-6NR on fall armyworm (FAW), Spodoptera frugiperda, when fed on different host plants. The experiment was performed in laboratory, in a completely randomized design using two concentrations of SfMNPV-6NR (2×106 and 2×107 OBs/mL) and six different host plants (soybean, corn, cotton, bean, sorghum and millet). The larval mortality, larval weight (LW), pupal weight (PW) of S. frugiperda and the production of OBs by virus were evaluated. S. frugiperda larvae were less susceptible to baculovirus when fed on cotton leaves (38 ± 4.17 and 70 ± 6.44% mortality) in the two concentrations tested (2×106 and 2×107 OBs/mL, respectively). The LW was affected by the virus concentration depending on the plant species consumed and the virus concentrations. The PW was affected by the plant species used to feed larvae. There was no effect of the host plant on the OBs virus production. The results demonstrate adverse effects of the host plant on the infectivity of the SfMNPV-6NR in S. frugiperda, especially a deleterious effect of the cotton plant in the virus infection capacity.
Palavras-Chave: | Interação tritrófica; Lagarta-do-cartucho; Vírus entomopatogênico.
Thesagro: | Algodão; Planta Hospedeira; Praga de Planta.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/188725/1/Infectivity-SfMNPV.pdf
Registro original: | Embrapa Milho e Sorgo (CNPMS)
Exemplares: | CNPMS - (28614-1) - UPC - AP - DD -  -  -  - DIS