2006
DOI: 10.1590/s0102-05362006000200026
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Avaliação de produtos à base de Bacillus thuringiensis no controle da traça-das-crucíferas

Abstract: Avaliou-se em dois experimentos a suscetibilidade da traça-das-crucíferas a inseticidas à base de Bacillus thuringiensis em repolho cv. Itiban. O delineamento do primeiro experimento (de julho a setembro/03), em área de plantio comercial em Brazlândia (DF), foi de blocos casualizados, com seis tratamentos e dez repetições; os bioinseticidas utilizados foram B. thuringiensis kurstaki (S1450CO), B. thuringiensis aizawai comercial (Bta) e três produtos formulados com as estirpes S1450BB, S811BB, S845BB de B. thur… Show more

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Cited by 7 publications
(4 citation statements)
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“…Insect resistance to microbial‐based insecticides is of particular concern in Brazil because it may impair the control of pests not only in conventional crops but also on organic farms, where these insecticides represent an important tool for pest management. Although efficacy studies of Bt ‐based products towards P. xylostella have been carried out in Brazil, this is the first time that such a susceptibility survey has been done with Brazilian populations of P. xylostella with regard to the evolution of resistance to Bt ‐based products and behavioural responses.…”
Section: Discussionmentioning
confidence: 99%
“…Insect resistance to microbial‐based insecticides is of particular concern in Brazil because it may impair the control of pests not only in conventional crops but also on organic farms, where these insecticides represent an important tool for pest management. Although efficacy studies of Bt ‐based products towards P. xylostella have been carried out in Brazil, this is the first time that such a susceptibility survey has been done with Brazilian populations of P. xylostella with regard to the evolution of resistance to Bt ‐based products and behavioural responses.…”
Section: Discussionmentioning
confidence: 99%
“…The occurrence of P. xylostella populations of resistant to certain active ingredients, like synthetic and biological insecticides, has caused a considerable increase in research directed at developing tactics for Integrated Pest Control based on economic, social, and ecological parameters [21,[45][46][47].…”
Section: Entomopathogens: Bacteriamentioning
confidence: 99%
“…Além disso, a letalidade da bactéria não atinge parasitoides de P. xylostella, tornando-a indicada para o uso em programas de manejo integrado deste inseto (MONNERAT et al, 2000). No entanto, diferentes estirpes de B. thuringiensis não agem com o mesmo potencial de controle, necessitando realizar avaliações de diferentes cepas (MEDEIROS et al, 2006).…”
Section: Introductionunclassified