Neem
Mostrando 25-36 de 122 artigos, teses e dissertações.
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25. Effect of PONNEEM# on Spodoptera litura (Fab.) and its compatibility with Trichogramma chilonis Ishii
Antifeedant and growth regulating activities of PONNEEM, an oil formulation containing neem and pungam (karanj) oils were evaluated along with individual neem and karanj oils and Nimbicidine, a commercial neem-based pesticide against fourth instar larvae of Spodoptera litura (Fab.). Among all the treatments, PONNEEM recorded the maximum antifeedant activity
Brazilian Archives of Biology and Technology. Publicado em: 2012-04
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26. Toxicidade de compostos sintéticos e naturais sobre Tetranychus urticae e o predador Phytoseiulus macropilis
O objetivo deste trabalho foi avaliar a toxicidade de compostos sintéticos e naturais sobre Tetranychus urticae e o predador Phytoseiulus macropilis. A mortalidade e a taxa de crescimento de T. urticae e seu predador foram avaliadas após a aplicação de: abamectina, clofentezina, fenpropatrina, fenpiroximato, propargito, enxofre e espiromesifeno, nas conc
Pesquisa Agropecuária Brasileira. Publicado em: 2012-04
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27. Anti-inflammatory polysaccharides of Azadirachta indica seed tegument
Azadirachta indica A. Juss., Meliaceae, or Indian neem is a plant used to treat inûammatory disorders. Total polysaccharide (TPL) and FI (fractioned by ion exchange chromatography) from the seed tegument of A. indica were evaluated in models of acute inflammation (paw edema/peritonitis) using Wistar rats. Paw edema (measured by hydroplethysmometry) was indu
Revista Brasileira de Farmacognosia. Publicado em: 08/03/2012
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28. Efeito de óleos essenciais como alternativa no controle de Colletotrichum gloeosporioides, em pimenta
Fungos do gênero Colletotrichum causam doenças conhecidas como antracnose. Métodos alternativos que sejam eficientes e menos agressivos vêm sendo amplamente testados. Dentre estes, surge o interesse pela utilização de óleos essenciais extraídos de vegetais. O presente trabalho teve como objetivo avaliar o efeito de óleos essenciais de eucalipto, cop
Summa Phytopathologica. Publicado em: 2012-03
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29. Comparative evaluation of Bacillus licheniformis 5A5 and Aloe variegata milk-clotting enzymes
The properties of a milk clotting enzyme (MCE) produced by bacteria (Bacillus licheniformis 5A5) were investigated and compared to those of rennet extracted from a plant (Aloe variegata). Production of MCE by B. licheniformis 5A5 was better in static than in shaken cultures. Maximum activity (98.3 and 160.3 U/ml) of clotting was obtained at 75ºC and 80ºC w
Brazilian Journal of Chemical Engineering. Publicado em: 2012-03
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30. Side-effects of pesticides used in the organic system of production on Apis mellifera Linnaeus, 1758
This study aimed to evaluate the effects of pesticides, used in the organic system, on Apis mellifera under laboratory conditions. Four multiple (0.25x, 0.5x, 1x and 2x) concentrations as recommended by they manufacturers of the following products: Rotenat CE®, Pironat®, Biopirol 7M®, Organic neem®, Natuneem® and lime sulfur were tested by topical appli
Brazilian Archives of Biology and Technology. Publicado em: 2012-02
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31. O extrato de neem (Azadirachta indica) causa alterações no desenvolvimento ninfal, no aparelho reprodutor e sistema digestivo do predador Supputius cincticeps (Heteroptera: Pentatomidae)? / Does the neem (Azadirachta indica) extract cause nymphal development, the reproductive system and digestive tract of the predator Supputius cincticeps (Heteroptera: Pentatomidae)?
The subfamily Asopinae presents important species of predators, as Supputius cincticeps (Stal) (Hemiptera: Pentatomidae). These stinkbug present potential for the biological control of Lepidoptera defoliators in eucalyptus plantations in Brazil.Botanical insecticides, mainly neem (Azadirachta indica), are alternative for the control of herbivore insects of a
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/02/2011
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32. Antifungal activity of different neem leaf extracts and the nimonol against some important human pathogens
This study was conducted to evaluate the effect of aqueous, ethanolic and ethyl acetate extracts from neem leaves on growth of some human pathogens (Aspergillus flavus, Aspergillus fumigatus, Aspergillus niger, Aspergillus terreus, Candida albicans and Microsporum gypseum) in vitro. Different concentrations (5, 10, 15 and 20%) prepared from these extracts in
Brazilian Journal of Microbiology. Publicado em: 2011-09
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33. Eficiência e efeitos subletais de nim sobre Bonagota salubricola (Meyrick) (Lepidoptera: Tortricidae)
O objetivo deste trabalho foi avaliar a eficiência e os efeitos subletais de um inseticida à base de nim (10 g.L-1 de azadiractina A) sobre a lagarta-enroladeira Bonagota salubricola em laboratório. Nos bioensaios, foi utilizado o produto à base de azadiractina NeemAzal-T/S® nas concentrações de 0,06%; 0,09%; 0,12%; 0,16%; 0,18% e 0,20% do produto com
Revista Brasileira de Fruticultura. Publicado em: 15/07/2011
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34. The neem [Azadirachta indica a: juss (meliaceae)] oil reduction in the in vitro production of zearalenone by Fusarium graminearum
Zearalenone, a mycotoxin produced by fungi of the genus Fusarium, including F. graminearum, triggers reproduction disorders in certain animals and hyperestrogen syndromes in humans. Current research investigates three concentrations of neem oil extract (0.1, 0.25 and 0.5%) in reducing the production of zearalenone. Neem oil extract decreased zearalenone amou
Brazilian Journal of Microbiology. Publicado em: 2011-06
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35. Occurrence of Scaptocoris castanea Perty (Hemiptera: Cydnidae) damaging Azadirachta indica (Meliaceae) seedlings in Brazil
Neem (Azadirachta indica) seedlings were found infested by the brown burrower bug, Scaptocoris castanea Perty, in December 2009, in the county of Tupaciguara, Minas Gerais state. Symptoms observed varied from leaf yellowing and stem drying, reduction in root size and number to plant death. This is the first report of S. castanea attacking neem plants.
Neotropical Entomology. Publicado em: 2011-04
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36. Influência do substrato na germinação de sementes de neem (Azadirachta indica A. Juss. - Meliaceae).
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REUNIÃO NORDESTINA DE BOTÂNICA. Publicado em: 2011