SELECTIVITY OF INSECTICIDES TO PREDATORS OF PESTS COTTON PLANT SELETIVIDADE DE INSETICIDAS AOS PREDADORES DAS PRAGAS DO ALGODOEIRO

<!-- @page { margin: 2cm } --> <p class="western" align="justify">The selectivity of insecticides for the complex of predators of the pests of cotton plant was evaluated in field experiment, in Goiânia- Goiás (Brazil), during the crop 1998/99. The exp...

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Bibliographic Details
Main Authors: Julio Cezar Silveira Nunes, Antônio Lopes da Silva, Valquíria da Rocha Santos Veloso, Stanley Vaz Santos, Selby Pereira dos Santos
Format: Article
Language:English
Published: Universidade Federal de Goiás 2007-09-01
Series:Pesquisa Agropecuária Tropical
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Online Access:http://www.revistas.ufg.br/index.php/pat/article/view/2886
Description
Summary:<!-- @page { margin: 2cm } --> <p class="western" align="justify">The selectivity of insecticides for the complex of predators of the pests of cotton plant was evaluated in field experiment, in Goiânia- Goiás (Brazil), during the crop 1998/99. The experimental design was the randomized blocks with seven treatments and four repetitions (check, clorfluazuron, Bacillus thuringiensis, alanycarb, endosulfan and acephate in two amounts). The samplings were accomplished in beforeapplication, two days, seven and fourteen days after the treatment. For the obtained results (Henderson & Tilton), the products, in the decreasing order of selectivity, were: alanycarb, clorfluazuron, B. thuringiensis, endosulfan e acephate.</p> <p class="western" align="justify">KEY-WORDS: <em>Insecta</em>; insecticides; cotton plant; predators.</p> <!-- @page { margin: 2cm } --> <p class="western" align="justify">A seletividade de inseticidas para o complexo das pragas do algodoeiro foi avaliada em experimento de campo, em Goiânia (GO), durante a safra 1998/99. O delineamento experimental foi em blocos ao acaso com sete tratamentos testemunha, clorfluazuron, <em>B. thuringiensis</em>, alanycarb, endosulfan e acephate em duas dosagens), em quatro repetições. As amostragens foram realizadas em pré-aplicação; aos dois, sete e quatorze dias após as pulverizações. Pelos resultados obtidos (fórmula de Herderson & Tilton), os produtos, na ordem decrescente de seletividade, foram: alanycarb, clorfluazuron, <em>B. thuringiensis</em>, endosulfan e acephate.</p> <p class="western" align="justify">PALAVRAS-CHAVE: <em>Insecta</em>; inseticidas; algodão; predadores.</p>
ISSN:1983-4063