|
|
|
| Registros recuperados: 25 | |
|
| |
|
| |
|
|
| Chiffelle,Italo; Huerta,Amanda; Azúa,Fernando; Puga,Karla; Araya,Jaime E. |
| Xanthogaleruca luteola Müller (Coleoptera: Chrysomelidae), a defoliator of Ulmus species currently present in several regions of central Chile, causes severe damage to trees, mainly in park areas, street tree-lines and gardens. The antifeeding and insecticidal activities of extracts from immature fruit of Melia azedarach L. (Meliaceae) were determined on adults of X. luteola in laboratory bioassays. Several concentrations of the extracts obtained with water and ethanol were used and their effectiveness and LC50 were determined. The antifeeding action of the water extracts caused 100% deterrence over concentrations of 3.6% w/v. Both extracts were effective insecticides against adults, causing 86% mortality (2.4% w/v), with a better performance of the... |
| Tipo: Journal article |
Palavras-chave: Botanical insecticides; Ethanol extract; Water extract. |
| Ano: 2011 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392011000200006 |
| |
|
| |
|
|
| Silva,Gonzalo; Rodríguez,J. Concepción; Blanco,Carlos A; Lagunes,Angel. |
| The insecticidal properties of water-extract of Peumus boldus Molina and its effect on the development cycle and feeding habits of Spodoptera frugiperda J.E. Smith and Helicoverpa zea Boddie were evaluated under laboratory conditions in concentrations of 0.25, 0.5, 1.0, 2.0, 4.0, and 8.0% (w/w). Spodoptera frugiperda was the most susceptible with 75% mortality at 7 d at 8% P. boldus concentration, while H. zea had only 30% mortality. LC50 was 2.31 mL kg-1 for S. frugiperda and 16.05 mL kg¹ for H. zea. When the extract concentration increased in the diet, larval size and weight, percentage of pupation and number of adults decreased, and the time required to reach those states was greater. Neonate larvae fed primarily on the diet with the lower extract... |
| Tipo: Journal article |
Palavras-chave: Fall armyworm; Corn earworm; Botanical insecticides; Nutritional indexes. |
| Ano: 2013 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392013000200008 |
| |
|
|
| Filgueiras,Camila Cramer; Farias,Paulo Roberto Silva; Cardoso,Maria das Graças; Vendramim,José Djair; Ramos,Edson Marcos Leal Soares; Cantão,Fernando Rodrigo de Oliveira. |
| Studies with botanical insecticides have become more popular as an alternative to Integrated Pest Management. The purpose of this study was to evaluate the effect of leaf and fruit aqueous extracts, from the species Clibadium sylvestre, and leaves and root of Derris amazonica species at concentrations of 0, 1, 2, 4 and 8%, in the control of the aphid Myzus persicae (Hemiptera: Aphididae). Four experiments were conducted; two tests with choice preference and two tests with no choice preference, giving nine treatments and five repetitions. Phytochemical screening was carried out from the leaves and fruit of the species C. sylvestre and leaves and root of D. amazonica. Evaluations of mortality, number of nymphs, and deterrence index of the insects were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Organic agriculture; Botanical insecticides; Cunaniol; Rotenone. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542011000600004 |
| |
|
|
| GONÇALVES,Gabriel Luiz Padoan; LIRA,Simone Possedente de; GlSSI,Danilo Soares; VENDRAMIM,José Djair. |
| ABSTRACT The botanical family Solanaceae has many species producing compounds with insecticidal properties, e.g. nicotine and capsaicin, which are used for pest management in agriculture. This fact provides perspectives to identify insecticidal compounds in Brazilian native species of Solanaceae. In this study, we performed a screening with 25 ethanolic extracts from 17 Solanaceae species in order to evaluate their bioactivity against the Mexican bean weevil, Zabrotes subfasciatus (Coleoptera: Chrysomelidae: Bruchinae). The bioactivity of Solanaceae ethanolic extracts (2,500 mg kg-1) was tested with residual contact bioassays. Adults of Z. subfasciatus were exposed to treated bean grains, and adult mortality, oviposition, F1 progeny and damages on grains... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Botanical insecticides; Mexican bean weevil; Phaseolus vulgaris. |
| Ano: 2021 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2021000100062 |
| |
|
|
| Ortiz U,Ana; Silva A,Gonzalo; Urbina P,Angélica; Zapata S.M,Nelson; Rodríguez M,J. Concepción; Lagunes T,Angel. |
| The maize weevil (Sitophilus zeamais Motschulsky) is one of the most widespread pests and causes heavy losses of stored grain throughout the world. Control of this insect is primarily dependent upon continued applications of organophosphorus and pyrethroid insecticides and fumigants as phosphine but the increasing problems with current insecticides drive the need for research and to develop new control methods. The insecticidal effect of leaf powder of tepa, Laureliopsis philippiana (Looser) Shodde, was evaluated against maize weevil under laboratory conditions. The parameters evaluated were adult mortality and emergence, grain weight loss and germination, and residual, repellent and fumigant effect. The highest levels of insect mortality were registered... |
| Tipo: Journal article |
Palavras-chave: Stored grains; Botanical insecticides; Maize weevil. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000100011 |
| |
|
|
| Mehdi Hashemi,Seyed; Ali Safavi,Seyed. |
| Plant secondary metabolites play an important role in plant-insect interactions and therefore such compounds may have insecticidal or biological activity against insects. Fumigant toxicity of essential oils of leaves and fruits from oriental arborvitae (Platycladus orientalis (L.) Franco) (Cupressaceae) was investigated against adults of cowpea weevil (Callosobruchus maculatus Fab.), rice weevil (Sitophilus oryzae L.), and red flour beetle (Tribolium castaneum Herbst). Fresh leaves and fruits were subjected to hydrodistillation using a Clevenger-type apparatus and the chemical composition of the volatile oils was studied by gas chromatography-mass spectrometry (GC-MS). Twenty-six compounds (92.9%) and 23 constituents (97.8%) were identified in the leaf and... |
| Tipo: Journal article |
Palavras-chave: Botanical insecticides; Fumigation; Stored-product insects. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000200004 |
| |
|
|
| FAZOLIN, M.; COSTA, C. R. da; CAVALCANTE, A. S. da S.; ESTRELA, J. L. V.; ALBUQUERQUE, E. S. de; DAMACENO, J. E. de O.. |
| Este trabalho apresenta um conjunto de informações técnico-científicas sobre a adaptação do uso tradicional do cipó-vick comparado à fosfina no controle do gorgulho-do-milho em paióis nas condições ambientais da Amazônia Ocidental. Pela eficácia na mortalidade de insetos e abundância de ocorrência na região, o cipó-vick apresenta grande potencial na fumigação de grãos de milho armazenados em paióis, principalmente os das pequenas unidades produtivas em comunidades extrativistas e projetos de assentamento da Amazônia, com vistas ao controle do gorgulho, sua principal praga. |
| Tipo: Folhetos |
Palavras-chave: Kangàrà kanê; Cipó vick; Tanaecium nocturnum; Benzaldeído; Ácido cianídrico; Mandelonitrila; Maize weevil; Gorgojo del maíz; Sithophillus zeamais; Granos almacenados; Control químico; Cianuro de hidrógeno; Maiz; Plagas de plantas; Produto florestal não madeireiro (PFNM); Zea mais; Insecticidas botánicos; Benzaldehído; Aceites essenciales; Productos forestales no madereros; Praga de planta; Praga de produto armazenado; Inseto; Milho; Gorgulho dos cereais; Controle químico; Fosfina; Controle biológico; Óleo essencial; Ácido prússico; Inseticida de Origem Vegetal; Plant pests; Corn; Stored grain; Chemical control; Phosphine; Botanical insecticides; Benzaldehyde; Hydrogen cyanide; Nontimber forest products. |
| Ano: 2009 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/661865 |
| |
|
| |
|
| |
|
| |
|
| |
|
|
| FAZOLIN, M.; MAISFORTE, N. da S.; LIMA, M. E. C. de; MONTEIRO, A. F. M.; RIMERIO, F. P.. |
| Este trabalho aborda o estado da arte da utilização prática do óleo de P. aduncum, assim como, revela os resultados de pesquisa com vistas ao encaminhamento do desenvolvimento de formulações adequadas para mitigar o problema da fitotoxicidade, o que limita a aplicação desses produtos na forma simplificada in natura. Este trabalho aborda o estado da arte sobre essa temática, assim como, revela os resultados de pesquisa com vistas ao encaminhamento do desenvolvimento de formulações adequadas para mitigar esse problema. Esta publicação está de acordo com o Objetivo de Desenvolvimento Sustentável 2 (Fome Zero e Agricultura Sustentável). Os Objetivos de Desenvolvimento Sustentável (ODS) são uma coleção de 17 metas globais estabelecidas pela Assembleia Geral das... |
| Tipo: Folhetos |
Palavras-chave: Selo ODS 2; Adjuvante; Aceites essenciales; Fitotoxicidad; Insecticidas botánicos; Adyuvantes de plaguicidas; Emulsionantes; Pimenta de Macaco; Óleo Essencial; Fitotoxicidade; Inseticida de Origem Vegetal; Emulsificante; Piper aduncum; Essential oils; Phytotoxicity; Botanical insecticides; Pesticide adjuvants; Emulsifiers. |
| Ano: 2022 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1148611 |
| |
|
| |
|
|
| Betancur R,Jessica; Silva A,Gonzalo; Rodríguez M,J. Concepción; Fischer G,Susana; Zapata S.M,Nelson. |
| In stored grains, the main agents diminishing production are insects, which can produce losses between 20% and 80% before harvest or under storage. The insecticidal properties of the essential oil of fresh leaves of Peumus boldus Molina against maize weevil (Sitophilus zeamais Motschulsky) adults were determined under laboratory conditions. The highest mortality (100%) was achieved at 4% concentration by contact with a treated glass surface. The same concentration in impregnated corn (Zea mays L.) grain, resulted in 98.7% mortality. Mortality by fumigant action at 6 h was 100% with 35 µL oil in 0.15 L (air volume). Concentrations 1, 2 and 4% of essential oil produced 0% F1 adult emergence. At 10 d of residual effect, the 4% concentration reached 63.7%... |
| Tipo: Journal article |
Palavras-chave: Maize weevil; Boldus; Stored grains; Botanical insecticides. |
| Ano: 2010 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392010000300007 |
| |
|
|
| Cruz-Estrada,Angel; Gamboa-Angulo,Marcela; Borges-Argáez,Rocío; Ruiz-Sánchez,Esaú. |
| Background: The whitefly (Bemisia tabaci Genn.) is a widely distributed and highly harmful plant pest species. The management of B. tabaci has been typically carried out by chemical pesticides. In the last decade however, there has been an increasing interest in natural products, particularly those of plant origin, to control this pest species. In the present work, aqueous and ethanolic extracts of native plants from the flora of the Yucatán peninsula (Acalypha gaumeri, Annona squamosa, Carlowrightia myriantha, Petiveria alliaceae and Trichilia arborea) and the introduced plant Azadirachta indica were collected and evaluated for insecticidal activity against eggs and nymphs Bemisia tabaci. Results: Most of the aqueous and ethanolic extracts showed high... |
| Tipo: Journal article |
Palavras-chave: Annona squamosa; Bemisia tabaci; Botanical insecticides; Plant extracts; Petiveria alliaceae. |
| Ano: 2013 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582013000100006 |
| |
|
| |
| Registros recuperados: 25 | |
|
|
|
