Consulta: subjectFacets:"Pesticide"
Registros recuperados: 43
Data/hora: 03/06/2024 05:23:35

Concentración de Diclorodifeniltricloroetano (DDT) en poblaciones silvestres de Cocodrilos (Crocodylus acutus y C. Moreletti) en la zona Costera de México
Provedor de dados: 32
Autores: Loa Loza, Eleazar.
Para determinar la concentración de DDT y sus metabolitos en ejemplares de cocodrilos (Crocodylus acutus y C. moreletii), durante el período de junio a diciembre de 2004 se tomaron 80 muestras de sangre en 37 localidades de 13 estados de la zona costera de México. En algunos de estos sitios, ha sido aplicado el DDT para el control del vector del paludismo. Las muestras fueron procesadas en el laboratorio mediante cromatografía de gases con detector de captura de electrones. Se realizó un análisis de regresión lineal simple entre la longitud y el peso de los cocodrilos. Para comparar las concentraciones de DDT en sangre en función de la longitud y peso de los cocodrilos en las provincias biogeográficas, se realizó el análisis de varianza utilizando un...
Tipo: Tesis
Palavras-chave: Reptiles; Crocodylus acutus; C. moreletii; DDT; Pesticidas; Contaminación; Maestría; Ganadería; Reptiles; Pesticide; Pollution.
Ano: 2007
URL: http://hdl.handle.net/10521/1565

Susceptibility to DNA damage in workers occupationally exposed to pesticides, to tannery chemicals and to coal dust during mining
Provedor de dados: 74
Autores: Kvitko,Katia; Bandinelli,Eliane; Henriques,João A.P.; Heuser,Vanina D.; Rohr,Paula; Silva,Fernanda R. da; Schneider,Naye Balzan; Fernandes,Simone; Ancines,Camile; Silva,Juliana da.
Our mutagenesis group has been studying with important economic drivers of our state, such as agriculture, the footwear and leather industry and open-cast coal mining. Working conditions in these sectors have potentially harmful to humans. The aim of these studies is to determine the health risk of workers by biomonitoring subjects exposed to genotoxic agents. The main results of our studies with vineyard farmers we observed a high rate of MN and DNA damage in individuals exposed to pesticides (p &lt; 0.001). In addition, some effects of genetic polymorphisms in the modulation of MN results were observed in this group. Tobacco farmers were also evaluated at different crop times. The results showed a significant increase in the Damage index and frequency in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Occupational exposure; Comet assay; Micronucleus test; Pesticide; Coal dust.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000600022

Impacto das práticas agrícolas e os problemas fitopatológicos: pesquisas e recomendações de proteção integrada.
Provedor de dados: 14
Autores: VALARINI, P. J.; ROBBS, C. F.; TOKESHI, H.
Fitopatógenos primários; Práticas agrícolas que favorecem a incidência de patógenos de solo; Recomendações de proteção integrada nas culturas irrigadas.
Tipo: Folhetos
Palavras-chave: Agricultura irrigada; Murcha de escleródio; Rhizoctoniose; Pesticide; Prática cultural; Irrigação; Doença de planta; Controle integrado; Controle químico; Agrotóxico; Impacto ambiental; Mofo branco; Crestamento; Plant cultural practices; Irrigation; Plant diseases and disorders; Chemical control; Integrated pest management; Good agricultural practices.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/964406

ACHA: Avaliação da Contaminação hídrica por agrotóxico.
Provedor de dados: 14
Autores: SCORZA JUNIOR, R. P.; NÉVOLA, F. A.; AYELO, V. S.
Modelos matemáticos e simuladores têm sido desenvolvidos para prever a lixiviação de agrotóxicos em solos, permitindo grande economia de tempo e recursos financeiros, além de permitir análises de risco com maior representatividade e confiabilidade. O Brasil ainda não faz uso dessas ferramentas no processo de avaliação de risco e classificação ambiental dos agrotóxicos. Estas ferramentas não são utilizadas pelas autoridades nacionais por não estarem adaptadas às condições brasileiras. O presente trabalho teve como objetivo desenvolver uma ferramenta computacional para simulação da lixiviação de agrotóxicos em cenários agrícolas brasileiros. A ferramenta computacional recebeu o nome de ACHA, que se refere ao acrônimo de Avaliação da Contaminação Hídrica por...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Modelagem matemática; Pesticide; Mathematical modeling.; Agrotóxico; Lixiviação.; Leaching.
Ano: 2010
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/880316

Artrópodos associados ao tomateiro industrial em Petrolina, PE e a racionalização do uso de defensivos agrícolas.
Provedor de dados: 14
Autores: MORAES, G. J. de; RAMALHO, F. de S.; OLIVEIRA, C. A. V. de; FREIRE, L. C.
As principais pragas do tomateiro industrial na regiao de Petrolina, PE, sao o microacaro (Aculops Lycopersici (Massee), o acaro vermelho (Tetranychus evansi Baker &amp; Pritchard) e as brocas dos frutos (PSeudoplusia oo (Cramer) e Heliothis zea (Bod). Os niveis populacionais mais baixos do microacaro foram atingidos quando o transplantio foi realizado de outubro a abril, enquanto que os niveis mais baixos de populacao de acaro vermelho foram atingidos em geral nos transplantios realizados no perimetro semestre de cada ano. Uma apreciavel reducao nos gastos relativos ao controle de pragas nesta cultura foi conseguida quando a aplicacao de defensivos baseou-se nos limiares de dano economico de duas plantas severamente atacadas pelo microacaro ou acaro...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Tomate industrial; Artrópodo; Defensivo agrícola; Brasil; Pesticide; Tomato.; Tomate; Ácaro; Lycopersicon Esculentum.; Mites.
Ano: 1986
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/132630

Manejo das pragas iniciais de milho mediante o tratamento de sementes com inseticidas sistêmicos.
Provedor de dados: 14
Autores: CRUZ, I.; VIANA, P. A.; WAQUIL, J. M.
Pragas subterraneas; Pragas de superficie; Manejo integrado; Tratamento de sementes; Efeito de inseticidas sobre a germinacao; Uso de grafite em plantadeiras; Equipamentos para tratamento.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Maize; Pest; Management; Seed; Pesticide; Tratment.; Controle Químico; Inseticida; Manejo; Milho; Praga; Semente; Tratamento; Zea Mays.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/482101

Bioensaios de toxicidade genética com plantas superiores Tradescantia (MCN e SHM), milho e soja.
Provedor de dados: 14
Autores: RODRIGUES, G. S.
A avaliação da toxicidade genética presente em certas situações ambientais e de compostos selecionados é uma área de crescente interesse em ecotoxicologia. Neste trabalho, são descritos quatro bioensaios vegetais de interesse para avaliação de genotoxicidade in situ em ambientes agrícolas. O ensaio do micronúcleo em célula mãe do pólen de Tradescantia (Trad-MCN) é um teste de clastogênese extremamente sensível, de exposição curta (desde apenas 6 horas) e avaliação simples. O ensaio do pelo estaminal (Trad-SHM) B um teste de mutação pontual, no qual se observa alteração de cor nas células do estame. A avaliação é simples, mas laboriosa. O bioensaio do pólen ceroso em milho tem como principal vantagem a sua potência estatística, já que, literalmente,...
Tipo: Folhetos
Palavras-chave: Toxicidade; Ecotoxicologia; Bioensaio; Monitoramento ambiental; Pesticide; Soybean; Agrotóxico; Milho; Soja; Mutação; Toxidez; Genética; Environmental impact; Mutagenesis; Tradescantia; Corn; Bioassays.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/964416

Potencial de contaminacao do Pantanal por pesticidas utilizados na Bacia do Alto Taquari, MS.
Provedor de dados: 14
Autores: VIEIRA, L. M.; GALDINO, S.; PADOVANI, C. R.
Os pesticidas compreendem um largo espectro de produtos quimicos usados na agropecuaria para controlar pragas, doencas de plantas e animais e combater ervas invasoras de culturas e pastagens. A eficacia comprovada desses produtos, aliada a crescente demanda setorial, viabilizou rapidamente a producao industrial, com o objetivo de incrementar a produtividade dos sistemas agropecuarios direcionados para a producao de alimentos. Os efeitos imediatos de toxicidade humana e ambiental foram durante muitos anos negligenciados ou considerados de menor relevancia. A expansao da agropecuaria na Bacia do Alto Paraguai (BAT), cuja superficie e de aproximadamente 29 mil km2, intensificada a partir da decada de 1970, passou a constituir uma serie ameaca para os...
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Rio Taquari; Pesticide; Contamination; Taquari river.; Contaminação; Impacto Ambiental; Meio Ambiente; Pesticida.; Pantanal; Environment; Environmental impact.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/793002

Utilizacão de pesticidas na agropecuária dos municípios da Bacia do Alto Taquari de 1988 a 1996 e risco de contaminação do Pantanal, MS, Brasil.
Provedor de dados: 14
Autores: VIEIRA, L. M.; GALDINO, S.; PADOVANI, C. R.
A partir da década de 1970, a remoção da vegetação nativa, principalmente dos cerrados, da Bacia do Alto Taquari (BAT), localizada em Mato Grosso do Sul e parte de Mato Grosso, se intensificou, para a implantação da agropecuária. Essa ocupação foi desordenada e não seguiu as técnicas mínimas de manejo e conservação de solo. As terras mais fracas foram transformadas em pastagens cultivadas. Os latossolos, localizados nos Chapadões e com topografia apropriada a mecanização agrícola, foram ocupados, principalmente, pelas culturas de soja, milho, arroz, trigo e feijão. A utilização de pesticidas passou a preocupar a sociedade pelo risco de afetar diretamente a saúde do homem pelo consumo de alimentos contaminados e, indiretamente, pelas cadeias alimentares. A...
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Agropecuária; Bacia do Alto Taquari; Risco ambiental; Mato Grosso do Sul; Brasil; Pesticide; Agricultural; Environmental risk; Contamination.; Contaminação; Pesticida.; Brazil; Pantanal.
Ano: 2001
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/806086

Effects of an environmentally relevant concentration of diuron on oyster genitors during gametogenesis: responses of early molecular and cellular markers and physiological impacts
Provedor de dados: 5
Autores: Akcha, Farida; Barranger, Audrey; Bachere, Evelyne; Berthelin, C. Heude; Piquemal, D.; Alonso, P.; Sallan, R. Rondon; Dimastrogiovanni, G.; Porte, C.; Menard, Dominique; Szczybelski, A.; Benabdelmouna, Abdellah; Auffret, M.; Rouxel, Julien; Burgeot, Thierry.
Genitors of the Pacific oyster Crassostrea gigas were submitted during gametogenesis to a short pulse exposure to the herbicide diuron at a realistic environmental concentration. Histological analysis showed no effect of diuron on gametogenesis course, sex ratio and reproductive effort. A non-significant increase in testosterone and progesterone levels was observed in genitors exposed to the herbicide. At cell level, diuron exposure was shown to modulate the phagocytic activity of circulating hemocytes. The results of a transcriptional analysis showed that diuron affected the expression of genes belonging to functions known to play a major role during oyster gametogenesis such as gene transcription regulation, DNA replication and repair, DNA methylation...
Tipo: Text
Palavras-chave: Oyster; Pesticide; Reproduction; Histology; Gene expression; RT-qPCR; Steroid; Immunity.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00309/41983/83232.pdf

OBSLAG - Volet Pesticides. Bilan 2017-2019 du suivi des lagunes méditerranéennes. Rapport final
Provedor de dados: 5
Autores: Munaron, Dominique; Derolez, Valerie; Foucault, Elodie; Cimiterra, Nicolas; Tapie, Nathalie; Budzinski, Hélène; Giraud, Anaïs.
L'objectif du projet OBSLAG Pesticides est de dresser un état des lieux de la problématique des pesticides dans les lagunes Méditerranéennes au regard du risque (individuel et/ou conjoint) qu'ils occasionnent pour ces écosystèmes. L'exposition des lagunes aux pesticides a été caractérisée sur la base d'un suivi de 12 points (10 MET), échantillonnés au cours de 6 campagnes entre sept. 2017 et juil. 2019. 72 matières actives et métabolites d'intérêt pour les lagunes ont été recherchés à l'aide d'échantillonneurs intégratifs passifs (POCIS) et d'échantillons d'eau ponctuels. En parallèle de l'acquisition des données de terrain, un travail de synthèse bibliographique des données écotoxicologiques les plus récentes concernant les pesticides a été réalisé de...
Tipo: Text
Palavras-chave: Pesticide; Phytosanitaire; Biocide; Evaluation du Risque; Lagunes; Méditerranée; Echantillonneurs passifs; POCIS.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00656/76769/77930.pdf

The insecticide permethrin induces transgenerational behavioral changes linked to transcriptomic and epigenetic alterations in zebrafish (Danio rerio)
Provedor de dados: 5
Autores: Blanc, Mélanie; Antczak, Philipp; Cousin, Xavier; Grunau, Christoph; Scherbak, Nikolai; Rüegg, Joëlle; Keiter, Steffen H.
The pyrethroid insecticide permethrin is widely used for agricultural and domestic purposes. Previous data indicated that it acts as a developmental neurotoxicant and can induce transgenerational effects in non-target organisms. However, associated underlying mechanisms remain unclear. The aim of this study was to investigate permethrin-related transgenerational effects in the zebrafish model, and to identify possible molecular mechanisms underlying inheritance. Zebrafish (F0) were exposed to permethrin during early-life (2 h post-fertilization up to 28 days). The F1 and F2 offspring generations were obtained by pairing exposed F0 males and females, and were bred unexposed. Locomotor and anxiety behavior were investigated, together with transcriptomic and...
Tipo: Text
Palavras-chave: Transgenerational epigenetic inheritance; Developmental neurotoxicity; Glutamatergic signaling; DNA methylation; Pesticide.
Ano: 2021
URL: https://archimer.ifremer.fr/doc/00685/79661/82425.pdf

In-situ microcosms, a tool for assessment of pesticide impacts on oyster spat (Crassostrea gigas)
Provedor de dados: 5
Autores: Stachowski Haberkorn, S; Quiniou, Francoise; Nedelec, M; Robert, Rene; Limon, G; De La Broise, D.
Effects of the herbicide Basamais (bentazon) and the fungicide Opus (epoxiconazole) on oyster spat (Crassostrea gigas) were assessed using in-situ microcosms in a field experiment lasting 13 days. Six-week-old hatchery spat (mean size 1.1 mm), previously collected on PVC plates, was immersed in glass bottles filled with 200 mu m filtered seawater. Bottles were maintained underwater at 6 m depth and their water content changed every other day. Growth, measured as shell area index increase, was 126 +/- 4% in the control bottles. While no growth differences were observed between control and individual pesticide treatments at 10 mu g l(-1), oysters treated with a mix of 10 mu g l(-1) Opus and 10 mu g l(-1) Basamais showed a 50% growth reduction compared with...
Tipo: Text
Palavras-chave: Epoxiconazole; Bentazon; Pesticide; Toxicity; Oyster; Microcosm.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-4134.pdf

An in situ intercomparison exercise on passive samplers for monitoring metals, polycyclic aromatic hydrocarbons and pesticides in surface waters
Provedor de dados: 5
Autores: Miege, C.; Mazzella, N.; Schiavone, S.; Dabrin, A.; Berho, C.; Ghestem, J. -p.; Gonzalez, C.; Gonzalez, Jean-louis; Lalere, B.; Lardy-fontan, S.; Lepot, B.; Munaron, Dominique; Tixier, Celine; Togola, A.; Coquery, M.
Tipo: Text
Palavras-chave: Intercomparison exercise; Marine Strategy Framework Directive (MSFD); Metal; Passive sampling; Pesticide; Polar organic chemical integrative sampler (POCIS); Polycyclic aromatic hydrocarbon (PAH); Priority chemical; Surface water; Water Framework Directive (WFD).
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00077/18853/16597.pdf

Pêche et riziculture au Surinam. Impact de la riziculture sur les ressources halieutiques
Provedor de dados: 5
Autores: Dintheer, Christian; Abbes, Rene; Fritsch, Jean-marie.
La pêche et la riziculture font partie des secteurs économiques les plus importants du Surinam. Depuis près de 30 ans, la riziculture par poldérisation des zones basses et marécageuses a permis de mettre en valeur toute la bande littorale de l’ouest du pays ; cette culture s’accroit encore aujourd’hui de façon significative. Le secteur halieutique quant à lui regroupe d’une part une pêche industrielle exploitant les crevettes du plateau continental et d’autre part une pêche artisanale traditionnelle qui recherche essentiellement les poissons sur les petits fonds côtiers et dans les marais saumâtres.
Tipo: Text
Palavras-chave: Riziculture; Pêche industrielle; Pêche artisanale; Crevette; Environnement; Pesticide; Guyanes.
Ano: 1985
URL: http://archimer.ifremer.fr/doc/00071/18272/15839.pdf

Renal Corpuscles Were Protected From Dichlorvos: Induced Morphological Alterations in Rats by Antioxidant Vitamins
Provedor de dados: 77
Autores: Owoeye,Olatunde; Edem,Fabian V; Akinyoola,Bukola S; Arinola,Ganiyu O.
Dichlorvos (DDVP), an organophosphorus pesticide is a volatile compound which enters the human body through oral, dermal and inhalational routes and is excreted via the kidney. This study assessed the effects of DDVP on the histology of the kidney. Twenty five male rats (75.05 ± 5.55 g) were divided into 5 groups of 5 rats per group as follows: Unexposed group, exposure to DDVP alone for 5 weeks, and 3 other groups exposed to DDVP for 5 weeks in addition to supplement with Vitamin E, vitamin C, and red palm oil (RPO). Rats were exposed to DDVP in poorly ventilated cardboard cages for 4 hours daily. On completion of exposure, rats were euthanized and tissue processed by routine paraffin wax method and stained with H&amp;E. Morphological alterations...
Tipo: Journal article
Palavras-chave: Organophosphate; Pesticide; Glomerulus; Renal corpuscle; Vitamin- supplementation.
Ano: 2014
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000200017

BIOLOGICAL ACTIVITIES AND NOVEL APPLICATIONS OF CHALCONES
Provedor de dados: 87
Autores: DÍAZ-TIELAS,C.; GRAÑA,E.; REIGOSA,M.J.; SÁNCHEZ-MOREIRAS,A.M.
ABSTRACT This review provides information on the biological activities of chalcones (whether natural or synthetic derivatives) on different organisms, as well as an overview of the functions and possible new applications of these plant secondary metabolites on crop protection, as eco-friendly pesticides and weed control agents. Naturally occurring chalcones have been used in traditional medicine for many years; however, recent scientific advances have shown that these molecules have a broad range of biological activities in a variety of organisms. A review on the major sources of chalcones and the main molecular events involved in the modes of action of these natural products is achieved. Chalcones are molecules with a broad spectrum of biological...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mode of action; Secondary metabolites; Crop protection; Pesticide; Fungicide; Antiviral; Phytotoxicity.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582016000300607

MACROPHYTE BIOASSAY APPLICATIONS FOR MONITORING PESTICIDES IN THE AQUATIC ENVIRONMENT
Provedor de dados: 87
Autores: VECHIA,J.F. DELLA; CRUZ,C.; SILVA,A.F.; CERVEIRAJR.,W.R.; GARLICH,N.
ABSTRACT The objective of this study was to evaluate the feasibility of the use of macrophytes Lemna minor and Azolla caroliniana as biomarkers of exposure (acute toxicity) for atrazine, bentazon + imazamox and clomazone, insecticide alpha cypermethrin + teflubenzuron and fungicides pyraclostrobin and mixture pyraclostrobin + epoxiconazole, as well as the risk for environmental intoxication. For this purpose, four plants of L. minor and five of A. caroliniana were selected in a 50 mL Hoagland medium. For both plants, the following concentrations were used: 0.10; 1.07; 3.44; 11.16; 36.40 and 118.0 mg L-1 of each test product and a control with three replicates. The results of this study demonstrated higher sensitivity of L. minor to the tested pesticides,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bioindication; Aquatic plants; Acute toxicity; Environmental monitoring; Pesticide.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582016000300597

Food-safety Standards and Farmers Health: Evidence from Kenyan’s Export Vegetable Growers
Provedor de dados: 31
Autores: Asfaw,   Solomon; Mithofer,   Dagmar; Waibel,   Hermann.
Limited empirical evidence exists either to confirm or refute the hypotheses that food-safety standards confer a positive external effect on farmers adopting it. This article makes use of health indicators obtained from a random cross-section sample of 439 small-scale export farmers in Kenya to evaluate the impact of EU retailer food-safety standards on producers’ health. Results show average cost of pesticide-related health risks at about 165 KSh and 324 KSh per cropping season for GlobalGAP adopters and non-adopters export producers, respectively. These costs equal 86.4% of the mean household chemical expenditure per cropping season for non-adopters and 39.6% of those adopters. Using instrumental variable econometric techniques we demonstrate that...
Tipo: Conference Paper or Presentation
Palavras-chave: Vegetables; GlobalGAP standards; Adoption; Pesticide; Farmer’s health; Kenya; Agribusiness; Agricultural and Food Policy; Food Consumption/Nutrition/Food Safety; International Development; Q13; Q17.
Ano: 2009
URL: http://purl.umn.edu/49928

Phasing Out Registered Pesticide Uses as an Alternative to Total Bans: A Case Study of Methyl Bromide
Provedor de dados: 31
Autores: Ferguson,   Walter L.; Yee,   Jet.
The short-term effect of pesticide bans generally is less efficient production, with higher consumer prices. The higher commodity prices provide windfall profits to producers of affected crops who did not need the banned pesticide, while those producers who were previous users of the banned pesticide may gain or lose, depending on price elasticities of demand and supply. Increased imports may dampen consumer prices and reduce previous gains made by some producers. A crop-by-crop phase-out, based on economic effects in place of an immediate ban on all affected crops, could reduce the adverse effects on consumers, producers, and the balance of trade, while still achieving many of the human health and environmental benefits of an immediate total ban of all...
Tipo: Journal Article
Palavras-chave: Ban; Methyl bromide; Pesticide; Phase-out strategy; Soil fumigation; Agribusiness; Agricultural and Food Policy; Crop Production/Industries.
Ano: 1997
URL: http://purl.umn.edu/90406

AN ANALYSIS OF THE IMPACT OF A BAN OF METHYL BROMIDE ON THE U.S. WINTER FRESH VEGETABLE MARKET
Provedor de dados: 31
Autores: Deepak,   M.S.; Spreen,   Thomas H.; VanSickle,   John J.
This study evaluates the economic impact of a ban on methyl bromide on the U.S. winter fresh vegetable market for six major crops: tomatoes, green peppers, cucumbers, squash, eggplant, and watermelons. Florida is the primary domestic supplier of these products. Mexico and Texas are the competing suppliers of the five vegetable crops and peppers, respectively. Leontief technologies represent both monocrop and double-crop production systems; linear inverse demand functions represent four demand regions in the U.S. and Canada. By increasing production costs and reducing yields, a ban on methyl bromide decreases Florida's FOB revenues by 54% and increases those of Mexico by 65%. Price increases to U.S. fresh vegetable consumers range from near zero to over...
Tipo: Journal Article
Palavras-chave: Fresh vegetables; Methyl bromide; Pesticide; Quadratic programming; Spatial equilibrium; Crop Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/15113

The impact of crop protection on agricultural production
Provedor de dados: 31
Autores: Popp,   Jozsef; Hantos,   Krisztina.
Chemical pesticides will continue to play a role in pest management for the future. In many situations, the benefits of pesticide use are high relative to the risks or there are no practical alternatives. The number and diversity of biological sources will increase, and products that originate in chemistry laboratories will be designed for particular target sites. Innovations in pesticide delivery systems in plants promise to reduce adverse environmental impacts even further. The correct use of pesticides can deliver significant socioeconomic and environmental benefits in the form of safe, healthy, affordable food; and enable sustainable farm management by improving the efficiency with which we use natural resources such as soil, water and overall land...
Tipo: Journal Article
Palavras-chave: Crop protection; Pesticide; Biopesticide; Crop losses; Cost and benefit; Agriculture; Crop Production/Industries; Food Consumption/Nutrition/Food Safety; Research and Development/Tech Change/Emerging Technologies.
Ano: 2011
URL: http://purl.umn.edu/102401

Comparative Analysis of the Safe Training Performance about Farmers Use Pesticide -Sichuan Province of China as an example
Provedor de dados: 31
Autores: Wenting,   Song; Xinhong,   Fu; Deping,   Xiong; Yan,   Wang; Lian,   Huang.
The Ministry of Agriculture of People’s Republic of China put in practice in non-hazardous food production and high-toxicity pesticides elimination, which aim at human, food and environmental safety. To investigate 491 farmers in Sichuan Province, the paper analyzes comparatively training content, fixed-point samples, different areas and training influence. The training content focuses on pesticide purchase, label reading, personal protection, container disposal, sprayer maintenance and sprayer cleaning. The results of SPSS statistical software show that there is a significant difference in 30 fixed-point samples between before and after training, and each index has obvious performance. And the results of component score and comprehensive scores of...
Tipo: Conference Paper or Presentation
Palavras-chave: Training performance; Farmers; Pesticide; Agricultural and Food Policy; Community/Rural/Urban Development; Environmental Economics and Policy; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Institutional and Behavioral Economics; Q16.
Ano: 2009
URL: http://purl.umn.edu/49973

UNWANTED AGRICULTURAL PESTICIDES: STATE DISPOSAL SYSTEMS
Provedor de dados: 31
Autores: Centner,   Terence J.
Millions of pounds of unwanted pesticides have accumulated in barns throughout our country.  The potential environmental and health risks posed by this situation has garnered public attention and governmental action.  The federal government has revised its Universal Waste Rule so that it is easier to dispose of unwanted pesticides rather than simply banned pesticides.  Nearly every state has initiated efforts to collect and dispose of accumulated pesticides in a safe manner.  While the possession of unwanted pesticides generally is not illegal, producers need to follow requisite legal requirements and dispose of pesticides properly to avoid legal infractions.  To assist producers, the implementation of a permanent apparatus is advised for the disposal of...
Tipo: Working or Discussion Paper
Palavras-chave: Hazardous waste; Pesticide; Pesticide collection program; Universal waste rule; Environmental Economics and Policy.
Ano: 1997
URL: http://purl.umn.edu/16667

Spatial Externalities of Pest Control Decisions in the California Citrus Industry
Provedor de dados: 31
Autores: Grogan,   Kelly A.; Goodhue,   Rachael E.
Predaceous and parasitic insects provide control of important citrus pests. However, many pesticides are toxic to these beneficials. Using California citrus grower survey data, this article tests whether landscape-level use of pesticides affects the presence of and reliance on Aphytis melinus, an important beneficial insect. Results show that landscape-level pesticide use decreases the presence of A. melinus and increases reliance on insecticides. Pesticide use on non-citrus crops has a significant negative effect on the presence of Aphytis melinus, suggesting a cross-crop spatial externality. Our findings illustrate that regulations designed to address cross-crop effects on beneficial insects can increase social welfare.
Tipo: Article
Palavras-chave: Aphytis melinus; Beneficial insects; California red scale; Citrus; Integrated pest management; Pesticide; Spatial externalities; Agricultural and Food Policy; Crop Production/Industries; Production Economics.
Ano: 2012
URL: http://purl.umn.edu/122310

INCOME GROWTH AND PESTICIDE CONSUMPTION IN THE FUTURE: APPLYING THE ENVIRONMENTAL KUZNETS CURVE HYPOTHESIS
Provedor de dados: 31
Autores: Arahata,   Katsumi.
Applying the Environmental Kuznets Curve hypothesis, the economic structure of pesticide consumption in the world was examined and its future consumption was predicted. It was found that the hypothesis is applicable and the income level significantly affects the pesticide consumption. Additionally, sustained population per land is also influential. In spite of the applicability of the hypothesis, it was also demonstrated that the great increase of pesticide consumption in developing countries would be predicted. Furthermore, among pesticide categories, the increase of insecticide consumption would be predicted even in developed countries.
Tipo: Conference Paper or Presentation
Palavras-chave: Environmental Kuznets Curve; Income growth; Pesticide; Sustained population of land; Environmental Economics and Policy; Land Economics/Use.
Ano: 2003
URL: http://purl.umn.edu/22055

Impact of Pesticide Residue Concerns on Fresh Produce Consumption in the UK
Provedor de dados: 31
Autores: Silva,   Andres; Garcia Martinez,   Marian; Bailey,   Alastair.
Poster
Tipo: Conference Paper or Presentation
Palavras-chave: Pesticide; AIDS; Two-stage demand system; Food Consumption/Nutrition/Food Safety; Q11.
Ano: 2010
URL: http://purl.umn.edu/61264

Issues, impacts, and prospects of the first transgenic crops tolerant to a herbicide. The case of glyphosate-tolerant soybean in the USA
Provedor de dados: 31
Autores: Bonny,   Sylvie.
IAAE 2009 International Conference
Tipo: Conference Paper or Presentation
Palavras-chave: Genetically modified crop; GMO; Biotechnology; Agro-economic impact; Environmental impact; Sustainability; Soybean; Pesticide; Weed; Prospects; Herbicide; Glyphosate; Agricultural and Food Policy; Crop Production/Industries; Environmental Economics and Policy; Production Economics; Research and Development/Tech Change/Emerging Technologies; Q55; O3; O13; O51.
Ano: 2009
URL: http://purl.umn.edu/51449

AGGREGATION ISSUES IN PEST CONTROL ECONOMICS: A BIOECONOMIC APPROACH
Provedor de dados: 31
Autores: Young,   Douglas L.; Smith,   Elwin G.; Kwon,   Tae-Jin.
Previous research has defined “aggregate pesticide expenditures” as the control variable; however, virtually all managerial recommendations and environmental restrictions target specific pesticides, rates, and crops. A bioeconomic approach considering particular pesticides on specific pests and crops is recommended for managerial-policy applications and testing for increasing returns. Exponential weed control and seven popular yield damage functional forms were estimated for a bioeconomic weed control model for winter wheat in Washington. Concavity with respect to herbicide rate was observed for most popular damage functions at normal weed densities and manufacturers’ label rates, but convexity existed outside these ranges and should be checked.
Tipo: Conference Paper or Presentation
Palavras-chave: Bioeconomic; Data aggregation; Herbicide; Increasing returns; Pest control; Pesticide; Weed; Crop Production/Industries.
Ano: 2000
URL: http://purl.umn.edu/36448

Impacts of Product Differentiation on the Crop Input Supply Industry
Provedor de dados: 31
Autores: Krause,   Mark A.
Tipo: Journal Article
Palavras-chave: Agribusiness; Input Supply Industry; Seed; Pesticide; Farm Machinery; Structural Change; Porter’s Five Forces; Agribusiness; Crop Production/Industries; Q13; L10; L20; L80.
Ano: 2011
URL: http://purl.umn.edu/104209

Modeling Agricultural Innovation in a Rapidly Developing Country:  The Case of Chinese Pesticide Industry
Provedor de dados: 31
Autores: Shi,   Guanming; Pray,   Carl E.
Technology and innovation play an increasingly important role in the economic development of both developed and developing countries. We investigate how policy and market factors influence firms’ (or other potential innovators’) decisions on innovation or imitation by developing a conceptual model and then empirically testing it using pesticide innovation data from a rapidly developing country, China. We find that the government encouraged local innovation by opening regions to more international trade, more investment in public research and education, strengthening intellectual property right (IPR) enforcement, and limiting the role of foreign inventors. However, the role of the extension of patent life in the early 1990s has little impact. Theory and...
Tipo: Conference Paper or Presentation
Palavras-chave: Innovation; Pesticide; China; Patent; Agribusiness; Agricultural and Food Policy; Crop Production/Industries; International Development; Research and Development/Tech Change/Emerging Technologies; O31; O34; O38.
Ano: 2011
URL: http://purl.umn.edu/103744

Effects of pig slurry application on soil physical and chemical properties and glyphosate mobility
Provedor de dados: 90
Autores: Oliveira,Daniela Aparecida de; Pinheiro,Adilson; Veiga,Milton da.
Pig slurry applied to soil at different rates may affect soil properties and the mobility of chemical compounds within the soil. The purpose of this study was to evaluate the effects of rates of pig slurry application in agricultural areas on soil physical and chemical properties and on the mobility of glyphosate through the soil profile. The study was carried out in the 12th year of an experiment with pig slurry applied at rates of 0 (control), 50, 100 and 200 m³ ha-1 yr-1 on a Latossolo Vermelho distrófico (Hapludox) soil. In the control, the quantities of P and K removed by harvested grains were replaced in the next crop cycle. Soil physical properties (bulk density, porosity, texture, and saturated hydraulic conductivity) and chemical properties...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Soil fertilization; Physical and chemical properties; Pollutant transport; Pesticide.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000500007

Milk quality parameters associated with the occurrence of veterinary drug residues in bulk tank milk
Provedor de dados: 63
Autores: Picinin,Lidia Cristina Almeida; Toaldo,Isabela Maia; Hoff,Rodrigo Barcellos; Souza,Fernando Nogueira; Leite,Mônica Oliveira; Fonseca,Leorges Moraes; Diniz,Soraia Araújo; Silva,Marcos Xavier; Haddad,João Paulo Amaral; Cerqueira,Mônica Maria Oliveira Pinho; Bordignon-Luiz,Marilde Terezinha.
ABSTRACT Veterinary drug residues in bulk tank milk are important to all sectors of the dairy chain because they are one of the major factors which determine the safety of the final product. This study attempted to identify milk quality parameters that are associated with the occurrence of veterinary drug residues using multivariate principal component analysis (PCA). A total of 132 raw milk samples were collected from 45 dairy farms in the state of Minas Gerais - Brazil and analyzed for 42 analytes, including pyrethroids, macrocyclic lactones and antibacterials, using liquid chromatography coupled with mass spectrometry in tandem mode and gas chromatography with electron capture detection. Out of the 132 milk samples, 40 samples tested positive for at...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pesticide; Anthelmintic; Antibacterial; Macrocyclic lactone; Food safety.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162017000300195

Acetylcholinesterase enzyme activity in carp brain and muscle after acute exposure to diafuran
Provedor de dados: 63
Autores: Golombieski,Jaqueline Ineu; Marchesan,Enio; Camargo,Edinalvo Rabaioli; Salbego,Joseânia; Baumart,Joele Schmitt; Loro,Vania Lucia; Machado,Sérgio Luiz de Oliveira; Zanella,Renato; Baldisserotto,Bernardo.
Sublethal adverse effects may result from exposure of aquatic organisms to insecticides at environmentally relevant concentrations. Fingerlings of the common carp (Cyprinus carpio, Linnaeus, 1758), grass carp (Ctenopharyngodon idella, Valenciennes, 1844), and bighead carp (Aristichthys nobilis, Richardson, 1845) were exposed to diafuran, an insecticide widely used during rice cultivation in Southern Brazil. The aim of this study was to verify the relationship between the lethal concentration (LC50) of diafuran and the acetylcholinesterase (AChE) activity in brain and muscle tissues of these species as a possible early biomarker of exposure to this insecticide. LC50 was determined for fish exposed to diafuran concentrations during 96 h (short term): common...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cyprinus carpio; Ctenopharyngodon idella; Aristichthys nobilis; Pesticide; Lethal concentration.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000400003

การชะลอการเสื่อมคุณภาพของเมล็ดพันธุ์โดยการจัดการแมลงศัตรูในโรงเก็บ
Provedor de dados: 106
Autores: Pornpun Yanaso; Apichart Lawanprasert; Porntip Thawong.
Storage pests are one of the main causes of the seed quality deterioration. Thus, the aim of this research was to study the efficacy of phosphine fumigant in combination with plant pesticide powder to protect the rice seed from storage pests. The experiment was conducted at Pranakorn Si Ayutthaya Rice Research Center with 3 periods. The 1st period was during February to June, 2012. Sampling was kept with four replications to obtained amount and type of storage pests. The results showed that in 250 grams seed weight there were 4 storage pests in Lesser grain borer, Angoumois grain moth, Red flour beetle and Rice weevil with average amount were 66.8, 4.4, 1.2 and 0.5 respectively. The 2nd period was during August, 2012 to February, 2013 study on Suphan Buri...
Tipo: PhysicalObject
Palavras-chave: Rice; Seed; Storage pest; Phosphine fumigant; Pesticide; ข้าว; เมล็ดพันธุ์; แมลงศัตรูในโรงเก็บ; สารรมฟอสฟีน; สารกำจัดศัตรูพืช.
Ano: 2014
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5647

FACTORS INFLUENCING THE RESPONSES OF Tetranychus urticae Koch (ACARINA: TETRANYCHIDAE) TO THURINGIENSIN
Provedor de dados: 113
Autores: Vargas,Robinson; Chapman,Bruce; Penman,David R.
The effects of temperature, host plant, active ingredient mobility, surfactant, residue age and larval age on the response of Tetranychus urticae Koch to thuringiensin were evaluated in laboratory bioassays. T. urticae larvae were significantly more susceptible to thuringiensin at 13°C than at 28°C. A significantly different response of T. urticae larvae to thuringiensin residues was found on peach and apple leaves. Older T. urticae larvae were significantly more susceptible than younger larvae when exposed to thuringiensin residues. No systemic or translaminar effects of thuringiensin were detected; the leaf surface (upper or lower) and the addition of Silwet L-77 surfactant did not affect the efficacy of thuringiensin. The use of thuringiensin in spider...
Tipo: Journal article
Palavras-chave: Beta -exotoxin; Miticide; Bioassay; Pesticide; Residue age; Surfactant; Translocation.
Ano: 2002
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0365-28072002000100001

Cytogenotoxicity of rice crop water after application of the tricyclazole fungicide
Provedor de dados: 42
Autores: WANDSCHEER,ALANA C.D.; MARCHESAN,ENIO; TEDESCO,SOLANGE B.; FRESCURA,VIVIANE DAL-SOUTO; SOARES,CAMILLE F.; LONDERO,GUILHERME P.; TELÓ,GUSTAVO M.; HANSEL,DÂMARIS S.S.
ABSTRACT Tricyclazole is currently one of the fungicides recommended for the treatment of diseases in irrigated rice. However, there is relatively little information on its cytotoxic and genotoxic potential. The objective of this study was to evaluate the cytotoxicity and genotoxicity of rice crop water after apllication of the tricyclazole fungicide through the Allium cepa L. test. The rice crop water samplings were collected before and 1, 15 and 30 days after application of the fungicide in rice plant shoots. The Allium cepa roots were placed in contact with the rice crop water to check for possible chromosomal abnormalities and mitotic index of the bioindicators meristematic cells. The data obtained by the Allium cepa test indicates that the application...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bioindicator; Chromosomal abnormalities; Mitotic index; Pesticide; Irrigated rice.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000301251

Climate conditions associated with the occurrence of pyrethroid residues in bulk milk tank
Provedor de dados: 45
Autores: Picinin,L.C.A.; Toaldo,I.M.; Hoff,R.B.; Souza,F.N.; Leite,M.O.; Fonseca,L.M.; Diniz,S.A.; Silva,M.X.; Haddad,J.P.A.; Cerqueira,M.M.O.P.; Luiz,M.T.B.
ABSTRACT The present study attempted to identify climate conditions that are associated with the occurrence of pyrethroid residues using a multivariate principal component analysis (PCA). A total of 132 raw milk samples were collected from dairy farms in Minas Gerais State - Brazil and analyzed for seven analytes using gas chromatography with electron capture detection. Of the 132 milk samples, pyrethroid residues were identified in 14 (10.6%) milk samples, of which 12 (9.1%) and two (1.5%) milk samples had the identification of cypermethrin and deltamethrin, respectively. From those samples, nine (6.8%) milk samples were regarded as non-compliant for cypermethrin with this analyte concentration above the maximum residue limits set by Brazilian...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Veterinary drug; Pesticide; Raw milk; Seasonality; Dairy cow.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352016000601721

Testosterone production and spermatogenic damage induced by organophosphorate pesticides
Provedor de dados: 47
Autores: Contreras,H.R.; Paredes,V.; Urquieta,B.; Del Valle,L.; Bustos-Obregón,E.
ParathionÒ is an organophosphorate pesticide amply used in agriculture. Many alterations induced by organophosphorate pesticides have been described, such as: cytogenetic alterations in germinal cells, oligozoospermia and teratozoospermia in the mouse. The effect of ParathionÒ, both pure (PP) and commercial (PC), on mouse interstitial cell testosterone production was evaluated in vivo and in vitro. Male mice were intraperitoneally injected with a single dose of 1/3 LD50 of ParathionÒ, both PP and PC. The animals were sacrificed at 1, 8 and 40 days post injection to evaluate the impact of disrupting testosterone production on spermatogonia, spermatocytes and elongated spermatids. The plasma testosterone was assayed by standard radioimmunoanalysis. The same...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Steroidogenesis; Spermatogenesis; Pesticide; ParathionÒ.
Ano: 2006
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452006000300002

Dimethoate degradation in plants and during processing of yerba maté leaves
Provedor de dados: 52
Autores: Schmalko,Miguel E.; Ramallo,Laura A.; Ferreira,Darío; Berlingheri,Rubén D.
The objective of this research was to study degradation kinetics of dimethoate in plants of Ilex paraguariensis Saint Hilaire (or yerba maté) and during its processing. To determine dimethoate concentration, a capillary gas chromatography technique with a mass selective detector was used. Half-life times in plants ranked between 9.8 and 11.8 days. During processing, with a blanching and two drying steps, dimethoate concentration decayed to a 22.7% of its initial value (in dry basis); while during seasoning step (at 45°C), half-life time was 17.3 days. With these values, preharvest safety interval was determined.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dimethoate; Pesticide; Degradation; Processing; Ilex paraguariensis; Yerba maté.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132002000600003

Fumigant Toxicity of Crushed Bulbs of Two Allium Species to Callosobruchus maculatus (Fabricius) (Coleoptera: Bruchidae)
Provedor de dados: 117
Autores: Ofuya,T.I; Olotuah,O.F; Ogunsola,O.J.
Fumigant toxicity of crushed fresh bulbs of Allium sativum L. and A. cepa L. to the Callosobruchus maculatus (Fabricius), a major pest of stored cowpea (Vigna unguiculata (L.) Walp.) seeds was assessed under laboratory conditions in Akure, Nigeria. In the tests, 20 g of infested cowpea seeds were suspended in a piece of muslin cloth, over an amount of crushed bulb in a container with a tightly fitted lid. Adult emergence was completely prevented from freshly laid eggs of C. maculatus on cowpea seeds that was fumigated with 6.0 g or more of crushed bulbs of A. sativum. Such fumigated seeds were not holed at all. Other amounts of A. sativum tested (1.0, 2.0, 3.0, 4.0 and 5.0 g) significantly reduced C. maculatus adult emergence from fumigated eggs and seed...
Tipo: Journal article
Palavras-chave: Infestation; Seed holing; Pesticide; Volatiles; Essential oils.
Ano: 2010
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392010000300019

MACRO simulator (version 5.0) for predicting atrazine herbicide behavior in brazilian latosols
Provedor de dados: 64
Autores: Vasconcelos,Fernanda Carla Wasner; Carvalho,Samara Andrade; Silva,Sérgio Henrique Godinho; Silva,Elen Alvarenga; Guerreiro,Mário César; Curi,Nilton.
The knowledge of pesticides behavior is fundamental for understanding the environmental impact caused by these products. However, related field experiments are time consuming and expensive. The MACRO® simulator allows to predicting the leaching of pesticides through the soil profile and the possible environmental contamination. The objective of this work was to study the percolate behavior and the atrazine leaching in two contrasting Latosols using the MACRO® simulator. The MACRO® simulator was adequate to predict atrazine behavior under the studied conditions and it can be used for the risk evaluation of atrazine contamination in surface and underground waters.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pesticide; Leaching; Environmental impact.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542013000300003

Lime and phosphate effects on atrazine sorption, leaching and runoff in soil
Provedor de dados: 64
Autores: Lima,José Maria de; Aquino,Regimeire Freitas; Magalhães,Ciro Augusto de Souza; Gonçalves,Raissa Homem; Nóbrega,Júlio Cesar Azevedo; Mello,Carlos Rogério.
ABSTRACT Atrazine still is a widely used herbicide in tropical soils to control annual broad-leaved weeds and annual grasses mainly in maize and sorghum plantations. Sorption and desorption in such soils are important processes that affect transport, ending with soil and water contamination, not only in these soils, but in other soils around the world. Lime and phosphate are important amendments in tropical soils to mitigate low fertility. These treatments can affect interaction among soil particles and between soil and atrazine. The objectives here were to evaluate the effect of lime, phosphate, and lime + phosphate treatments on sorption and transport of atrazine in a Typic Hapludult, using soil-erosion-plots at field conditions in a 3%-slope landscape...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Contamination; Pesticide; Argisol; Soil erosion plots.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100204