Insecticidal activity of 2-tridecanone against the cowpea weevil Callosobruchus maculatus (Coleoptera: Bruchidae)

Anais da Academia Brasileira de Ciências

Yussef F.b. Braga²  Thalles B. Grangeiro²  Eder A. Freire²  Helano L. Lopes¹  José N. S. Bezerra¹  Manoel Andrade-neto¹  Mary Anne S. Lima¹ 

[1] ,Universidade Federal do Ceará Departamento de Biologia Laboratório de Genética MolecularFortaleza CE ,Brasil

关键词: Callosobruchus maculatus;    cowpea;    2-tridecanone;    Pilocarpus microphyllus;    Callosobruchus maculatus;    feijão-de-corda;    2-tridecanona;    Pilocarpus microphyllus;   

DOI  :  10.1590/S0001-37652007000100005

来源: SciELO

【 摘 要 】

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 < 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.

【 授权许可】

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