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| Pistori, Melissa Grindi Bragato; Universidade Católica Dom Bosco; Roel, Antonia Railda; Universidade Católica Dom Bosco; Valério, José Raul; Centro Nacional de Pesquisa de Gado de Corte - EMBRAPA; Oliveira, Marlene Conceição Monteiro; Empresa Brasileira de Pesquisa Agropecuária / Agência de Desenvolvimento Agrário e Extensão Rural; Grisoto, Eliane; Escola Superior de Agricultura Luiz de Queiroz/USP; Matias, Rosemary; Universidade Anhanguera – Uniderp. |
| The study of plant-derived substances for the control of insect pests is desirable in the attempt to discover less toxic insecticides that are safe for the environment. Indeed, extracts from the cashew of the savannah, Anacardium humile, have shown insecticidal activities against certain insects. The sugarcane root spittlebug Mahanarva fimbriolata is considered an important pest of sugarcane, causing severe damage and significant yield reductions. The aim of this study was to evaluate the effect of the aqueous extract of A. humile (0.05, 0.4 and 1.0%) on M. fimbriolata. The application of the aqueous extract of Anacardium humile resulted in 53.1% nymphal mortality at a concentration of 1.0%, which was significantly higher than that observed in the negative... |
| Tipo: Pesquisa em Laboratório |
Palavras-chave: 5.01.02.00-1 insecta; Insecticidal plants; Plant active ingredients; Sugarcane pests 5.01.02.01-0. |
| Ano: 2013 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/16597 |
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| Roel,Antonia Railda; Dourado,Doroty M.; Matias,Rosemary; Porto,Karla R. A.; Bednaski,Aline V.; Costa,Reginaldo B. da. |
| The fall armyworm, Spodoptera frugiperda, is one of the major field pests for maize production. It is mainly controlled by means of synthetic, and more recently by resistant cultivar of maize expressing Bt toxins. The neem tree, Azadirachta indica, is a plant that can potentially control insects with the advantage of being food and environmental safe. The aim of this study was to assess the effect of neem oil on the development and survival of S. frugiperda caterpillars by assessing histological alterations caused on their midgut. Newly hatched caterpillars were submitted to three neem oil concentrations: 0.006; 0.05; 0.4%, which were added to their artificial diet. Ten 3rd instar caterpillars, taken from each treatment, were submitted to histological... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fall armyworm; Histological analysis; Insecticidal plants; Neem. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262010000300024 |
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