SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

Vanhoutte Brunier, Alice.

Atrazine is the most widely used herbicide on cultured areas. This pesticide is degraded during its transport in rivers and streams, to the coastal area. Marennes Oléron is the main french oyster farming area, receiving the fresh water from the Charente river and ail the drainage coming from the coastal cultivated marshlands. Agriculture is thus claimed to be responsible for shellfish mortality in the aquaculture area. To simulate the changing fate of atrazine in the environment, a modelling strategy has been selected. a) First, using a two-way hydrodynamic model developped by IFREMER, the atrazine dilution trail in the Marennes Oléron area was simulated.Combined with larvae bioassays of Crassostrea gigas (Japanese oyster), the results show atrazine rates...

Tipo: Text

Palavras-chave: Produits phytosanitaires; Atrazine; Cycle biogéochimique; Modélisation; Dynamique sédimentaire; Vasières intertidales; Pesticides; Atrazine; Biogeochemical cycle; Models; Sediment transport; Intertidal muflats.

Ano: 2001

URL: http://archimer.ifremer.fr/doc/00412/52312/53082.pdf

Devenir de l'atrazine dans le bassin de Marennes-Oléron (France) - Approche par la modélisation hydrodynamique, hydrosédimentaire et biogéochlmique

Vanhoutte Brunier, Alice.

Atrazine is the most widely used herbicide on cultured areas. This pesticide is degraded during its transport in rivers and streams, to the coastal area. Marennes Oleron is the main french oyster farming area, receiving the fresh water from the Charente river and all the drainage coming from the coastal cultivated marshlands. Agriculture is thus claimed to be responsible for shellfish mortality in the aquaculture area. To simulate the changing fate of atrazine in the environment, a modelling strategy has been selected, a) First, using a two-way hydrodynamic model developped by IFREMER, the atrazine dilution trail in the Marennes Oleron area was simulated.Combined with larvae bioassays of Crassostrea gigas (Japanese oyster), the results show atrazine rates...

Tipo: Text

Palavras-chave: Produits phytosanitaires; Atrazine; Cycle biogéochimique; Modélisation; Dynamique sédimentaire; Vasières intertidales.; Pesticides; Atrazine; Biogeochemical cycle; Models; Sediment transport; Intertidal muflats..

Ano: 2001

URL: http://archimer.ifremer.fr/doc/00306/41764/40977.pdf

Direct effect of p,p'- DDT on mice liver

BJPS

Arroyo-Salgado,Bárbara; Olivero-Verbel,Jesús; Guerrero-Castilla,Angélica.

ABSTRACT Contact with the pesticide dichlorodiphenyltrichloroethane (p,p′-DDT) can be the cause of various harmful effects in humans, wildlife, and the environment. This pesticide is known to be persistent, lipophilic, resistant to degradation, and bioaccumulive in the environment and to be slowly released into bloodstream. Growing evidence shows that exposure to DDT is linked to type 2 diabetes mellitus. Individuals exposed to elevated levels of DDT and its metabolite have an increased prevalence of diabetes and insulin resistance. To evaluate these possible relationships, experiments were performed on eight-week-old female mice, divided into three groups (n = 10 per group): Group 1 received a vehicle-control intraperitoneal (i.p.) injection of sesame...

Dissipação de permetrina em pepino utilizando princípios de boas práticas agrícolas e de laboratório.

Palavras-chave: Pesticides; Persistent organic pollutant; Dichlorodiphenyltrichloroethane/exposure; Type 2 diabetes mellitus/exposure to dichlorodiphenyltrichloroethane/experimental study; Insulin/resistance/exposure to dichlorodiphenyltrichloroethane; Gene expression.

Ano: 2016

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502016000200287

Infoteca-e

BARIZON, R. R. M.; FERRACINI, V. L.; QUEIROZ, S. C. do N. de; SOUZA, M. D. de; SPADOTTO, C. A.; SOUZA, D. R. C. de.

Resumo - Este trabalho teve como objetivo realizar testes de campo e de laboratório, utilizando os princípios das boas práticas de laboratório (BPL) e boas práticas agrícolas (BPA). Esses princípios foram criados para harmonizar procedimentos e garantir a aceitação dos resultados em diferentes países e regiões da Organização para Cooperação e Desenvolvimento Econômico (OCDE), além de serem obrigatórios para registro de agrotóxicos. Para adequar à instalação de teste desses princípios foi realizado um estudo de campo com aplicação de permetrina no cultivo de pepino, que é considerado uma cultura com suporte fitossanitário insuficiente (ou minor crops). Este pesticida foi selecionado por duas razões: (a) vem sendo detectado nos programas de monitoramento, e...

Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)

Palavras-chave: Boas práticas de laboratório; Boas práticas agrícolas; Permetrina; GC-MS/MS; Espectrometria de massas; Agrotóxico; Espectrometria; Análise Química; Pepino; Cucumis; Pesticides; Good laboratory practices; Good agricultural practices; Mass spectrometry.

Ano: 2019

URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1111785

Distribution of chlorinated pesticides in surface water and fish of El Temsah and Bitter Lakes, Suez Canal

OceanDocs

Said, T.O.; Hamed, M.A..

The potential effect of chlorinated pesticides pollutants carried by El Temsah and Bitter Lakes of the Suez Canal was investigated during four seasons of 2003. The results indicate the presence of total DDTs, total cyclodienes and total Hexachlorocyclohexane (HCHs) in surface water with ranges; 2.76-13.88 ng/l, 3.99-16.39 ng/l, and 0.39-1.25 ng/l, respectively. Total DDTs concentrations were ranged from 161-3100 ng/g (wet weight) with an average of 1087 ng/g (wet weight), while total HCHs concentrations were ranged from 30-1145 ng/g (wet weight) with an average of 316 ng/g (wet weight) recorded in three fish species; Lutjanus sp., R. haffara and S. rivulatus of the investigated area. Concentrations of chlorinated pesticides recorded in both of water and...

Tipo: Journal Contribution

Palavras-chave: Pesticides; Surface water; El Temsah; Bitter lakes; Suez Canal Accumulation Fish meal Wastes Water masses Fish meal Wastes http://aims.fao.org/aos/agrovoc/c_2925 http://aims.fao.org/aos/agrovoc/c_8307.

Ano: 2005

URL: http://hdl.handle.net/1834/1060

Diversification strategies in the pesticide industry: from seeds to biopesticides

Ciência Rural

Pelaez,Victor; Mizukawa,Gabriel.

ABSTRACT: The pesticide industry has undergone a diversification process led by six leading companies (Monsanto, Syngenta, Bayer, Dow, DuPont, BASF) that control roughly 68% of the world market. This growth, initiated in the second half of the 1990s, occurred through deals and acquisitions of companies from the seed and biopesticide markets. This paper analyzes these diversification strategies, which have involved a capital mobilization process based on the exploitation of economies of scope and management of complementary assets. This aims to minimize the risks of investment in consolidated markets as well as in new ones.

Do Farmers Internalise External Impacts of Pesticides in Production?

Palavras-chave: Pesticides; Seeds; Biopesticides; Diversification; Growth.

Ano: 2017

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000200152

Skevas, Theodoros; Stefanou, Spiro E.; Oude Lansink, Alfons G.J.M..

In modern agriculture, pesticides feature so prominently in growers’ arsenal to reduce crop damage caused by various pests and diseases. But their indiscriminate use can harm human health and the environment and, eventually, impact agricultural productivity negatively. In an era of an increasing public awareness on the external effects of pesticides, the EU is trying to update its pesticide policy by establishing tax and levy schemes. An important question is whether the external impacts of pesticides are also affecting the farmers’ production environment. A damage abatement specification is used consisting of a potential output function and a damage abatement function. The damage abatement function considers both high and low toxicity pesticides, and...

Tipo: Conference Paper or Presentation

Palavras-chave: Pesticides; Externalities; Biodiversity; The Netherlands; Agricultural and Food Policy; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Food Security and Poverty; Land Economics/Use; Productivity Analysis.

Ano: 2010

URL: http://purl.umn.edu/109403

Does It Matter Who Scouts?

Lichtenberg, Erik; Berlind, Ayesha Velderman.

Scouting is the most widely used integrated pest management technique adopted by U.S. growers. This study applies an implicit demand formulation of the Lichtenberg-Zilberman damage abatement model to data from a survey of Maryland field crop growers to examine differences in pesticide demand between growers using scouts trained and supervised by extension and those using chemical dealer employees or scouting themselves. The results give partial support to those skeptical of the quality of scouting by farmers themselves and by consultants working for chemical dealers. Soybean growers using extension-trained scouts had significantly lower pesticide demand than those using chemical dealer employees or scouting themselves. However, no significant differences...

Tipo: Journal Article

Palavras-chave: Crop loss; Damage abatement; Extension; Integrated pest management; Pesticide demand; Pesticides; Scouting; Crop Production/Industries.

Ano: 2005

URL: http://purl.umn.edu/31214

Droplets spectrum of air-assisted boom sprayers under different environmental and operational conditions

AGRIAMBI

Sasaki,Robson S.; Teixeira,Mauri M.; Fernandes,Haroldo C.; Zolnier,Sérgio; Maciel,Christiam F. S.; Alvarenga,Cleyton B. de.

ABSTRACT During pesticide spraying, the psychrometric conditions of the air may cause evaporation of the droplets along their trajectory from the nozzle to the target. Thus, this study aimed to evaluate the effect of air psychrometric conditions and operating pressure on the droplet spectrum of air-assisted boom sprayers. The test was performed using a prototype equipped with an axial fan, a flow homogenizer, temperature and relative air humidity sensors, a spray nozzle and a gas-heating system to warm up the airflow. With the assembled system and the aid of a particle analyser, the JSF 11002 spray nozzle was evaluated with respect to droplet spectrum in four air psychrometric conditions (7, 14, 21 and 28 hPa) and at four operating pressures (200, 300, 400...

Ecotoxicological studies on the pejerrey (Odontesthes bonariensis, Pisces Atherinopsidae)

Palavras-chave: Evaporation; Spraying; Pesticides.

Ano: 2016

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000100092

Biocell

Carriquiriborde,Pedro; Ronco,Alicia.

URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452006000100012

Palavras-chave: Odontesthes bonariensis; Ecotoxicology; Environmental pollution; Heavy metals; Pesticides.

Ano: 2006

Efeito residual de inseticidas sintéticos sobre Trichogramma pretiosum Riley (Hym., Trichogrammatidae) em diferentes gerações - DOI: 10.4025/actasciagron.v30i2.1723

Agronomy

Moscardini, Valéria Fonseca; UFLA; Moura, Alexandre Pinho de; UFRRJ; Carvalho, Geraldo Andrade; UFLA; Lasmar, Olinto; UFLA.

O presente trabalho teve por objetivo avaliar a ação residual dos produtos etofemprox, fenitrotiom, metidatiom e triclorfom sobre adultos de Trichogramma pretiosum, bem como sobre as gerações F1 e F2 desse parasitóide, em condições de laboratório. Ovos do hospedeiro alternativo Anagasta kuehniella (Zeller) (Lep., Pyralidae) foram aderidos em cartelas de cartolina azul, inviabilizados sob lâmpada germicida e tratados por imersão nas soluções inseticidas e em água destilada (testemunha) por cinco segundos. Os ovos foram expostos ao parasitismo uma, 24 e 48 horas após o tratamento, por um período de 24 horas, e posteriormente mantidos em câmara climatizada a 24±1ºC, UR de 70±10% e 12 horas de fotofase até a emergência dos parasitóides....

Palavras-chave: 5.01.02.00-1 Fitossanidade controle biológico; Inimigo natural; Parasitóide; Pesticidas; Seletividade 5.01.02.00-1 Fitossanidade biological control; Natural enemy; Parasitoid; Pesticides; Selectivity.

Ano: 2008

URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/1723

Effect of in vivo pesticide exposure and injection of bacteria on immune gene expression in the Pacific oyster, Crassostrea gigas

Gagnaire, Beatrice; Renault, Tristan; Thomas Guyon, Hélène; Burgeot, Thierry.

Bay of Marennes-Oleron is an important French area of reproduction for sea bass, Dicentrarchus labrax. This area is often subjected to many pollutions due to anthropic activities, including pesticides and polycyclic aromatic hydrocarbons (PAH) which cause adverse effects in aquatic organisms. The harmful effects of such contaminants on fish immune system leading to a decreased resistance against pathogens begin to be described, but remain poorly known. In this context, influence of micropolluants, like PAH, on the defense mechanisms developed by sea bass was tested. Fish were exposed five days to a soluble fraction of PAH with environmental concentration (760 ng/L). At the end of the contamination, fish were transferred to non contaminated sea water and...

Tipo: Text

Palavras-chave: Phagocytosis; Vibrio; Pesticides; Pollutant; Crasssotrea gigas; Oysters.

Ano: 2005

URL: http://archimer.ifremer.fr/doc/2005/acte-3317.pdf

Effect of Irrigation Levels on Dissolved Organic Carbon Soil Distribution and the Depth Mobility of Chlorpyrifos

Chilean J. Agric. Res.

Junod,Julio; Zagal,Erick; Sandoval,Marco; Barra,Ricardo; Vidal,Gladys; Villarroel,Mario.

Water flows provided by irrigation systems may be associated with dissolved organic carbon (DOC) content in the soil solution and may modify the mobility of pesticides, such as chlorpyrifos (CHP). These compounds were analyzed under field conditions, evaluating their distribution in the soil profile under excessive irrigation in a Humic Haploxerand soil. The trial was carried out in soil columns located under the canopy of apple trees (Malus domestica Borkh.) in an orchard located in the Bío-Bío Region, Chile. The insecticide CHP was applied 120 g hL-1, and later the natural run off was collected from the foliage to the columns. Surface irrigation was used as a control, the equivalent to 4 L h-1 weekly, plus two treatments over the columns of 6 and 8 L h-1...

Tipo: Journal article

Palavras-chave: Pesticides; Organic matter; Volcanic soil.

Ano: 2009

URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392009000300017

Effect of working pressure at different spray nozzles on drift quantification in wind tunnel

REA

Gandolfo,Marco A.; Carvalho,Fernando K.; Chechetto,Rodolfo G.; Gandolfo,Ulisses D.; Moraes,Eder D. de.

Each year, there is an increase in pesticide consumption and in its importance of use in the large-scale agricultural production, being fundamental the knowledge of application technology to the activity success. The objective of the present study was to evaluate the influence of working pressure on the drift generated by different spray nozzles, assessed in wind tunnel. The treatments were composed of two spray nozzles AXI 110015 and AXI 11002 with pressure levels of 276 and 414 kPa. The spray solution was composed by water and NaCl at 10%. The applications were conducted at wind speed of 2.0 m s-1, being the drift collected at 5.0; 10.0 and 15.0 m away from the spray boom and at heights of 0.2; 0.4; 0.6; 0.8 e 1.0 m from the tunnel floor. To both spray...

Effets d'un mélange de pesticides sur les hémocytes d'huître creuse, Crassostrea gigas.

Palavras-chave: Application technology; Pesticides; Environmental contamination.

Ano: 2014

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000100008

Eficiência comparativa de inseticidas no controle das pragas do arroz armazenado no Estado do Acre.

Gagnaire, Beatrice; Geret, Florence; Haure, Joel; Martin, Jean-louis; Burgeot, Thierry; Thomas-guyon, Hélène; Renault, Tristan.

Shellfish industry is often realised in estuarine areas, subjected to pollutions due to agricultural activities. The harmful effects of pesticides on animals inhabiting these estuarine zones are poorly documented. Bivalve molluscs represent an interesting model because they are sedentary and they filter water intensively. Effects of pesticides on haemocytes functions were tested in Pacific oyster, Crassostrea gigas and analysed by flow cytometry. A combination of pesticide at environmental concentrations was tested in vivo. Animals used corresponded to two genetically selected populations produced in hatchery.

Tipo: Text

Palavras-chave: Haemocytes; Flow cytometry; Pesticides; Crassostrea gigas.

Ano: 2003

URL: http://archimer.ifremer.fr/doc/2003/acte-924.pdf

Infoteca-e

FAZOLIN, M..

No Brasil, as perdas de grãos durante o armazenamento têm atingido níveis médios de 20%. No Acre, devido as precárias condições de armazenamento e os fatores climáticos favoráveis ao desenvolvimento das pragas, os níveis de perdas são superiores a 30%. Os insetos têm sido os agentes responsáveis por essas perdas, causando prejuízos quantitativos determinados pela perda de peso e prejuízos qualitativos causados pela depreciação do produto devido a presença de ovos, larvas, pupas, adultos e alterações na composição química do produto, além de facilitar o desenvolvimento de micro-organismos. Nas condições locais, 35% do arroz armazenado é atacado pelo gorgulho (Sitophilus zeamais) e 65% pela traça (Sitotroga cereealella). No controle dessas pragas alguns...

Tipo: Comunicado Técnico (INFOTECA-E)

Palavras-chave: Maize weevil; Angoumois grain moth; Embrapa Acre; Rio Branco (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Oriza sativa; Plagas de plantas; Control químico; Malatión; Plaguicidas.; Arroz; Praga de planta; Gorgulho dos cereais; Sitophilus zeamais; Traça dos cereais; Sitotroga cerealella; Controle químico; Inseticida; Campo Experimental.; Rice; Plant pests; Chemical control; Pesticides; Malathion..

Ano: 1986

URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/492345

Environmentally Adjusted Agricultural Productivity in the Great Plains

Rezek, Jon P.; Perrin, Richard K..

This study adjusts 1960-1996 agricultural productivity gains in a panel of Great Plains states to account for the discharge of pesticide and nitrogen effluents into the environment. The agricultural-environmental technology is approximated with translog distance functions that allow us to contrast traditional versus environmentally adjusted productivity gains. Findings indicate technical change has been increasingly biased toward environmentally friendly production. While the environmental adjustment reduced overall productivity gains during the sample period, in recent years adjusted productivity outpaced the traditional measure, reflecting the pro-environment bias in technical change.

Tipo: Journal Article

Palavras-chave: Agricultural productivity; Distance function; Environmental externalities; Nitrogen; Pesticides; Technical change bias; Environmental Economics and Policy; Productivity Analysis.

Ano: 2004

URL: http://purl.umn.edu/31112

Esterase profile in a pyrethroid-resistant Brazilian strain of the cattle tick Boophilus microplus (Acari, Ixodidae)

Genet. Mol. Biol.

Baffi,Milla Alves; Pereira,Cícero Donizete; Souza,Guilherme Rocha Lino de; Bonetti,Ana Maria; Ceron,Carlos Roberto; Gourlart,Luiz Ricardo.

The cattle tick Boophilus microplus causes great damage in livestock and is considered one of the most important tropical ectoparasites. The traditional method of control is based on the intensive use of pesticides, however the indiscriminate use of these compounds over the years has led to the selection of resistant ticks. Hydrolases, particularly esterases (EST), have been reported to be associated with acaricide resistance in B. microplus. We compared the esterase profile of susceptible and cypermethrin-resistant strains of adult B. microplus and a pyrethroid susceptible reference strain (the Mozzo strain) using polyacrylamide gel electrophoresis and specific staining. The electrophoretic profiles of protein extracts revealed the presence of four...

Tipo: Info:eu-repo/semantics/other

Palavras-chave: Boophilus microplus; Pesticides; Resistance; Esterases.

Ano: 2005

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572005000500016

ESTIMATING INSECTICIDE APPLICATION FREQUENCIES: A COMPARISON OF GEOMETRIC AND OTHER COUNT DATA MODELS