Article
Toxicity of several d-endotoxins of Bacillus thuringiensis against Helicoverpa armigera (Lepidoptera: Noctuidae) from Spain
Author/s | González Zamora, José Enrique
Avilla Hernández, Carlos Vargas Osuna, E. González Cabrera, J. Ferré, J. |
Department | Universidad de Sevilla. Departamento de Ciencias Agroforestales |
Publication Date | 2005 |
Deposit Date | 2015-10-02 |
Published in |
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Abstract | Toxicity and larval growth inhibition of eleven insecticidal proteins of Bacillus thuringiensis were evaluated against neonate larvae of Helicoverpa armigera, a major pest of important crops in Spain and other countries, ... Toxicity and larval growth inhibition of eleven insecticidal proteins of Bacillus thuringiensis were evaluated against neonate larvae of Helicoverpa armigera, a major pest of important crops in Spain and other countries, by a whole-diet contamination method. The most active toxins were Cry1Ac4 and Cry2Aa1, with LC50 values of 3.5 and 6.3 μg/ml, respectively. At the concentrations tested, Cry1Ac4, Cry2Aa1, Cry9Ca, Cry1Fa1, Cry1Ab3, Cry2Ab2, Cry1Da, and Cry1Ja1, produced a significant growth inhibition, whereas Cry1Aa3, Cry1Ca2, and Cry1Ea had no effect. |
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Bt toxins Helicoverpa_Article_ ... | 447.9Kb | [PDF] | View/ | art Zamora |