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| Registros recuperados: 51 | |
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| Buitrago, Jorge Eliecer; Ramos Sandoval, Olga Lucia; Amaya Hurtado, Dario. |
| The Lambda Cyhalothrin is an insecticide of broad spectrum used in agriculture, to reduce the loss in crops, due to the attack of some pests. This compound has the presence of the radicals chlorine, fluorine and cyano, which can cause serious effects on human health when are ingested. Because of this, exist the need of develop non - destructive methods, capable of determining the concentration of the pesticide in farming, for eradicate the presence of this substance on the fruit used as food. To achieve this, commercial Lambda Cyhalothrin and distilled water were used, to obtain the recommended dilutions for the treatment of various pests in agriculture. The samples were analyzed through colorimetry, obtaining the characteristic color spaces for the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Color space; Neural fitting; Wavelength; Insecticide. |
| Ano: 2017 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4092 |
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| PAIVA,DERISVALDO R.; LIMA,DÊNIS P. DE; AVVARI,NAGA P.; ARRUDA,EDUARDO J. DE; CABRINI,ISAIAS; MARQUES,MARIA RITA; SANTOS,EDSON A. DOS; BIAGGIO,FRANCISCO C.; SANGI,DIEGO P.; BEATRIZ,ADILSON. |
| ABSTRACT Cardanol is a constituent of Cashew Nut Shell Liquid that presents larvicidal activity against Aedes aegypti. The isolation of cardanol is somewhat troublesome, however, in this work we describe an efficient and inexpensive method to obtain it as a pure material. The compound was used as starting material to make chemical transformation leading to saturated cardanol, epoxides and, halohydrins. These derivatives were tested for toxicity against Aedes aegypti larvae. The results showed that iodohydrins are very promising compounds for making commercial products to combat the vector mosquito larvae presenting a LC50 of 0.0023 ppm after 72 h of exposure. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aedes aegypti; Insecticide; Larvicide; Phenolic lipids; CNSL. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000200373 |
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| Humeres,Eduardo; Da Cruz,Ivana B.M.; Oliveira,Alice K. de. |
| Effect of age, sex and time exposure of Anastrepha fraterculus (Wied.) to toxicity of fenthion was evaluated. The age of the flies was important to the appearance of the first intoxication symptoms; males and females of reproductive ages (30 and 60 days-old, respectively) were less susceptible to insecticide than flies in the remainder ages (four and 120 days-old). The effect of body weight on insect intoxication was not detected. LT 50 biossay with fenthion (varying from 3-7 minutes) showed a lower susceptibility of males than females at all ages. Adults of both sexes and 30 days-old submitted to continuous and discontinuous exposure to fenthion did not show toxic cumulative effect of the insecticide. The statistical analysis suggests a possible general... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Insecta; Fruit-fly; Insecticide; Toxicity. |
| Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0301-80591999000200011 |
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| Silva,Luciana Barboza; Silva,Walciane; Macedo,Maria Ligia Rodrigues; Peres,Marize Terezinha Lopes Pereira. |
| Hundreds of plant species have been studied in order to find out the active ingredient responsible for their insecticidal activity against the pests of economic importance. To verify the insecticidal activity in the husk of stem of Croton urucurana Baillon 1864 (Euphorbiaceae) against Anagasta kuehniella Zeller 1879 (Lepidoptera: Pyralidae), the methanolic (EMeOH) extract, dichloromethane fraction (FDM), ethyl acetate fraction (FAE) and crude resin, incorporated into an artificial diet were evaluated. EMeOH (0.5, 1.0 and 2.0%) and crude resin (2.0%) interfered with neither the weight nor the survival of fourth instar larvae and other analyzed parameters. FDM (2.0%) fraction caused mortality of 65%, and the artificial diet containing 2.0, 1.0 and 0.5% FAE... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Euphorbiaceae; Insecticide; 'sangra d'água'; Meal moth; Toxicity. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000300018 |
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| Castillo Domínguez, Ernesto. |
| En el estado de Tabasco, localizado en el trópico de México, se tienen plantadas alrededor de 7,000 ha de cedro (Cedrela odorata L), como una respuesta a los procesos de deforestación de la región y como una forma de suplir las necesidades de materia prima de la industria de la madera. La presente investigación tuvo como objetivo evaluar el crecimiento del cedro en etapa juvenil bajo riego, fertilización y aplicación de insecticida y su relación con la incidencia de Hypsipyla grandella Zeller. El estudio se desarrolló de abril a de septiembre de 2008 en una plantación de cedro de 10 meses de edad plantada en marco real de 3x3 m, con una densidad de 1100 plantas/ha, localizada en el municipio de Cárdenas, Tabasco (18°01´N, 93°03´ W). Las variables... |
| Tipo: Tesis |
Palavras-chave: Cedrela odorata; Irrigación; Fertilización; Insecticida; Crecimiento; Maestría; Producción Agroalimentaria en el Trópico; Irrigation; Fertilization; Insecticide; Growth. |
| Ano: 2008 |
URL: http://hdl.handle.net/10521/1569 |
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| Morales de la Cruz, Cipriana. |
| Con el propósito de identificar las plagas asociadas al mango así como también evaluar los insecticidas como son aceite mineral, azufre, spinosad e imidacloprid contra ellas, se realizó un estudio en la región de Costa Grande, Guerrero, México. La aplicación de estos productos se realizó con base de umbrales de acción. Se empleó un diseño experimental de bloques al azar con cinco tratamientos incluyendo el testigo, con cuatro repeticiones. Se registraron temperatura y humedad para correlacionarlas con las poblaciones. Las especies predominantes fueron Frankliniella invasor y Aulacaspis tubercularis, no hubo correlación significativa entre las poblaciones de ambas plagas y la temperatura, pero hubo correlación negativa con la humedad. Los tratamientos no... |
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Palavras-chave: Frankliniella invasor; Aulacaspis tubercularis; Correlación; Muestreo; Insecticidas; Correlation; Sampling; Insecticide; Entomología y Acarología; Maestría. |
| Ano: 2012 |
URL: http://hdl.handle.net/10521/1736 |
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Recomendação de inseticidas para utilização no programa de manejo de pragas da soja, safra 1984/85, na Região Central do Brasil (PR, SP, MS, MT, GO, DF, MG, BA, e RO).
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Infoteca-e | |
| CORSO, I. C.; GAZZONI, D. L.; GOMES, S. A.; CURADO NETO, L. O. F.; SILVA, A. L. da. |
| Tipo: Folhetos |
Palavras-chave: Recomendacao de inseticida; Brasil; Soybean; Recommendation; Insecticide; Soja; Brazil. |
| Ano: 1984 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/445308 |
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| Registros recuperados: 51 | |
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