Data/hora: 08/06/2024 23:56:48

Biblioteca(s): | Embrapa Unidades Centrais.
Data corrente: | 25/08/2005
Data da última atualização: | 20/08/2018
Autoria: | ARRUDA, I. C.; VENTURA, M. U.; SCARMINIO, I. S.
Afiliação: | Iara Cintra Arruda, Universidade Estadual de Londrina - UEL/Centro de Ciências Agrárias - CCA/Departamento de Agronomia; Maurício Ursi Ventura, Universidade Estadual de Londrina - UEL/Centro de Ciências Agrárias - CCA/Departamento de Agronomia; Ieda Spacino Scarminio, Universidade Estadual de Londrina - UEL/ntro de Ciências Agrárias - CCA/Departamento de Química.
Título: | Feeding and arrestment responses of Diabrotica speciosa to cucurbitacin-content formulations.
Ano de publicação: | 2005
Fonte/Imprenta: | Pesquisa Agropecuária Brasileira, Brasília, DF, v. 40, n. 7, p. 639-643, jul. 2005
Idioma: | Inglês
Notas: | Título em português: Respostas alimentares e arrestantes de Diabrotica speciosa a formulações contendo cucurbitacina.
Conteúdo: | The objective of this work was to evaluate arrestant and stimulant feeding effects on Diabrotica speciosa (Ger.), using cucurbitacin-content starch-based formulations prepared with varying starch sources, and adding potassium lignate. In a glass slide assay, the wash off resistance of formulations was compared. Potassium lignate did not improve wash off resistance. Lagenaria vulgaris L. powder, in which cucurbitacin B concentration was determined as 0.28%, was added to the most adhesive formulation. The resultant material was used in a two-choice assay in which leaves of common bean, Phaseolus vulgaris L., treated with concentrations of 2.5%, 5%, 10%, 15% and 20% were offered to insects together with untreated control leaves. Greater number of insects and leaves consumed were found on leaves treated with cucurbitacin-content formulation (2.5%, 5% - greatest response -, 10% and 15% concentrations) than on untreated control leaves. The concentration, in which responses were higher, was sprayed in a bean field at 1,000, 1,900 and 3,000 g ha-1. Greater number of beetles was found in plots treated with the highest dosage, 3 and 6 days after spraying. Ten days after spraying, no significant differences were found among dosages, probably due to washoff of the bait.
Palavras-Chave: | bait; larva alfinete; rootworm; semiochemical; semioquímico.
Thesagro: | Isca.
Thesaurus Nal: | Coleoptera; Insecta.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/107734/1/Feeding.pdf
Registro original: | Embrapa Unidades Centrais (AI-SEDE)
Exemplares: | AI-SEDE - (32378-1) - UPE - AP - PP - 630.72081 - P474 -  - DIS