avaliação de extratos vegetais no controle de mosca-branca, bemisia tabaci biótipo b em abóbora evaluation of plant extracts in the control of whitefly bemisia tabaci biotype b in squash

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ID: 257432
2013
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Abstract
A abóbora (Cucurbita moschata Duch.) é uma cultura de importância para a agricultura familiar da região Nordeste do Brasil. No entanto, a ocorrência do prateamento das folhas da aboboreira ocasionado pela mosca-branca, Bemisia tabaci biótipo B limita sua produção, causando prejuízos aos agricultores. O objetivo deste trabalho foi avaliar a eficiência de extratos vegetais sobre o nível populacional de ninfas de mosca-branca em abóbora cv. Jacarezinho. O experimento foi instalado em campo experimental, em blocos casualizados, constituído de seis tratamentos e três repetições. As aplicações dos extratos vegetais foram feitas com intervalo de sete dias, fazendo-se uso de substâncias extraídas das seguintes plantas: canudo (Ipomoea carnea subsp. fistulosa), mamona (Ricinus communis L.), tinguí (Mascagnia rigida Griseb), cardo-santo (Argemone mexicana L.), e o óleo comercial Natuneem®. Todos os extratos vegetais obtiveram eficiência no controle de ninfas B. tabaci, sendo o R. communis (75,49%), M. rigida (73,99%), I. carnea (72,24%), óleo de nim (70,4%) e A. mexicana (69,16%).
The squash (Cucurbita moschata Duch.) is an important crop for family farmers in the northeast of Brazil. However, the occurrence of leaf silvering caused by the whitefly, Bemisia tabaci biotype B, limits production, causing losses to farmers. The aim of this study was to evaluate the efficiency of plant extracts on the population levels of whitefly nymphs on the squash cv. Jacarezinho. The experiment was conducted at an experimental field, in a randomized block design consisting of six treatments and three replications. Applications of plant extracts were made at an interval of seven days, making use of substances extracted from the following plants: Ipomoea carnea subsp. Fistulosa, castor bean (Ricinus communis L.), Tingui (Mascagnia rigida Griseb), cardo-santo (Argemone mexicana L.), and the commercial oil product Natuneem ®. All of the plant extracts were efficient in the control of the B. Tabaci nymphs, with R. communis (75.49%), M. rigida (73.99%), I. carnea (72.24%), neem oil (70.4%) and A. mexicana (69.16%).
Reference Key
lima2013revistaavaliao Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Bruno Marcus Freire Vieira Lima;José Osmã Teles Moreira;Carlos Alberto Aragão
Journal international journal of computer games technology
Year 2013
DOI
DOI not found
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902013000300026
Keywords
pumpkin

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