Data/hora: 01/06/2024 00:37:01

Provedor de dados: | 42
País: | Brazil
Título: | Insecticidal activity of 2-tridecanone against the cowpea weevil Callosobruchus maculatus (Coleoptera: Bruchidae)
Autores: | Braga,Yussef F.B.; Grangeiro,Thalles B.; Freire,Eder A.; Lopes,Helano L.; Bezerra,José N. S.; Andrade-Neto,Manoel; Lima,Mary Anne S.
Data: | 2007-03-01
Ano: | 2007
Palavras-chave: | Callosobruchus maculatus; Cowpea; 2-tridecanone; Pilocarpus microphyllus.
Resumo: | The effect of 2-tridecanone vapor on the cowpea weevil (Callosobruchus maculatus) development was determined. Seeds of cowpea were infested with adults and exposed to different doses of 2-tridecanone isolated from Pilocarpus microphyllus Stapf ex Holm, a plant species native from northeastern Brazil. The pure monoterpene was evaluated both undiluted as well as in the dilutions 1:10, 1:100 and 1:1,000 (v/v). The following parameters of the cowpea weevil life cycle were analyzed in response to decreasing doses of 2-tridecanone: number of eggs laid, percentage of egg hatching on seeds, percentage of adult emergence, adult weight at emergence, mean developmental time and number of adults emerged. Vapor of 2-tridecanone caused a significant (P &lt; 0.05) reduction in the number of eggs laid, in the percentage of eggs hatched and in the number of emerged adults in infested seeds. The fumigant insecticidal effect of 2-tridecanone was mainly due to its ovicidal activity.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652007000100005
Editor: | Academia Brasileira de Ciências
Relação: | 10.1590/S0001-37652007000100005
Formato: | text/html
Fonte: | Anais da Academia Brasileira de Ciências  v.79 n.1 2007
Fonte: | info:eu-repo/semantics/openAccess