Data/hora: 13/06/2024 10:49:28

Biblioteca(s): | Embrapa Unidades Centrais.
Data corrente: | 05/11/2007
Data da última atualização: | 31/07/2018
Autoria: | LEITE, G. L. D.; PICANÇO, M.; JHAM, G. N.; MOREIRA, M. D.
Afiliação: | Germano Leão Demolin Leite, Universidade Federal de Viçosa - UFV/Núcleo de Ciências Agrárias/Departamento de Agropecuária; Marcelo Picanço, Universidade Federal de Viçosa - UFV/Departamento de Biologia Animal; Gulab Newandram Jham, Universidade Federal de Viçosa - UFV/Departamento de Química; Márcio Dionízio Moreira, Universidade Federal de Viçosa - UFV/Departamento de Biologia Animal.
Título: | Whitefly, aphids and thrips attack on cabbage.
Ano de publicação: | 2006
Fonte/Imprenta: | Pesquisa Agropecuária Brasileira, Brasília, DF, v. 41, n. 10, p. 1469-1475, out. 2006
Idioma: | Inglês
Notas: | Título em português: Ataque de mosca-branca, pulgões e tripes em repolho.
Conteúdo: | The objective of this work was to investigate the relationships between predators and parasitoids, leaf chemical composition, levels of leaf nitrogen and potassium, total rainfall, relative humidity, daylight and median temperature on the intensity of whitefly, aphid, and thrips attack on cabbage. Whitefly, aphids and thrips population tended to proliferate in the final stage of plant or reached a peak population about 40 days after plantation. The whitefly and thrips tended to increase with an increase in the median temperature. A dependence of Cheiracanthium inclusum and Adialytus spp. populations on whitefly and aphids populations, respectively, was observed. No significant effect was detected between K and nonacosane leaf content and aphid population. However, an increase in leaf N content was followed by a decrease of this insect population. No significant relation was observed between leaf N, K and nonacosane and whitefly and thrips populations. Highest nonacosane levels were observed in plants 40 days after transplant, and relative humidity correlated negatively with nonacosane. Natural enemies, especially the parasitoid Adialytus spp. and the spiders can be useful controlling agents of the whitefly and aphids in cabbage. Median temperature can increase whitefly and thrips populations.
Palavras-Chave: | nonacosane; nonacosano.
Thesagro: | Bemisia Tabaci; Brassica Oleracea; Brevicoryne Brassicae; Temperatura.
Thesaurus Nal: | temperature; Thrips tabaci.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/107034/1/Whitefly.pdf
Registro original: | Embrapa Unidades Centrais (AI-SEDE)
Exemplares: | AI-SEDE - (40729-1) - UPE - AP - PP - 630.72081 - P474 -  - DIS