Agrochemicals
Mostrando 1-12 de 73 artigos, teses e dissertações.
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1. NORBORNADIENO: SÍNTESE E APLICAÇÕES
Bicyclo[2.2.1]hepta-2,5-diene or norbornadiene (NBD) is a bicyclic hydrocarbon molecule used in many fields of chemistry since its first synthesis in 1950. NBD is the precursor of Aldrin, an agrochemical that was commonly used as an insecticide until the end of the XX century. Norbornadiene is capable of interconverting into its isomer, quadricyclane (QC), b
Química Nova. Publicado em: 2022
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2. Extracts of the Native Brazilian Tree Garcinia gardneriana Inhibit Urediniospore Germination of Coffee Leaf Rust Fungus
The fungal Hemileia vastatrix is the causal agent of coffee leaf rust, one of the worst and devastating disease in coffee cultures worldwide. As a result of our research on natural products for the development of novel agrochemicals, we found that the hexane extract from leaves of the Brazilian medicinal plant Garcinia gardneriana, at 500 μg mL-1, inhibited
Journal of the Brazilian Chemical Society. Publicado em: 2022
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3. Synthesis and Evaluation of the Fungal Activity of New Pyrazole-Carboxamides against Colletotrichum gloeosporioides
The pyrazole core has been recognized by their biological properties and included in the synthesis of modern agrochemicals. Part of these studies consists of making structural modifications to pesticides for commercial purposes to increase efficacy. In this article, we present the synthesis of four new pyrazol-4-carboxamide 8a-8d derivatives (PCD), through a
J. Braz. Chem. Soc.. Publicado em: 2020-09
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4. SYNTHESIS AND PHYTOTOXIC PROFILE OF A NEW TETRAOXANE DESIGNED FROM A COMMERCIAL AUXIN
Modern agriculture relies on the massive use of agrochemicals, including herbicides. Despite their effectiveness, a continuous use of herbicides sharing the same target has resulted in the selection of weed biotypes resistant to such chemicals. To cope with this problem, the development of new herbicides is an urgent requirement. In this work we applied the
Quím. Nova. Publicado em: 20/07/2020
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5. System electro-neutralizer of agrochemicals contained in food and water samples through electrons trap
Abstract This study presents a system to electro-neutralize agrochemicals in food and water samples based on the properties of a controlled electron trap, the related apparatus is protected under patent application (WO/2018/090110; INPI: BR 10 2016 0268486) / (PCT / BR 2017/050115). The efficacy of the system was verified as to the type, quantity, surface te
Food Sci. Technol. Publicado em: 2020-06
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6. Estimativa de contaminação de águas subterrâneas e superficiais por agrotóxicos em área sucroalcooleira, Santa Rita/PB, Brasil
Resumo O aumento da produtividade agrícola, em especial da produção canavieira, geralmente está associado ao uso de agrotóxicos. O risco de contaminação desses compostos nos recursos hídricos é uma preocupação para a saúde pública e ambiental. Nesse contexto, o estudo objetivou estimar o potencial de contaminação das águas subterrâneas e sup
Ciênc. saúde coletiva. Publicado em: 25/11/2019
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7. The Importance of Otoneurological Evaluation in Brazilian Workers Exposed to Pesticides: A Preliminary Study
Abstract Introduction Agrochemicals, also known as pesticides, are widely used in agriculture and in public health. They are organic and inorganic chemical substances with a high level of toxicity not only for the environment, but also for human health. Objective To verify findings on labyrinthine assessment in endemic disease control agents, and to reco
Int. Arch. Otorhinolaryngol.. Publicado em: 25/11/2019
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8. Exposição ocupacional a agrotóxicos, riscos e práticas de segurança na agricultura familiar em município do estado do Espírito Santo, Brasil
Resumo Objetivo: caracterizar a exposição ocupacional, percepção do risco, práticas de segurança e fatores associados ao uso de equipamento de proteção individual (EPI) durante a manipulação de agrotóxicos. Métodos: estudo transversal com amostra representativa de agricultores de Santa Maria de Jetibá, Espírito Santo. Procedeu-se à caracte
Rev. bras. saúde ocup.. Publicado em: 25/11/2019
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9. System electro-neutralizer of agrochemicals contained in food and water samples through electrons trap
Abstract This study presents a system to electro-neutralize agrochemicals in food and water samples based on the properties of a controlled electron trap, the related apparatus is protected under patent application (WO/2018/090110; INPI: BR 10 2016 0268486) / (PCT / BR 2017/050115). The efficacy of the system was verified as to the type, quantity, surface te
Food Sci. Technol. Publicado em: 11/11/2019
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10. Selection of conilon coffee clones tolerant to pests and diseases in Minas Gerais
Abstract In the northern Minas region, the dry-warm climate predisposes coffee plants to the occurrence of leaf miners, mites, cercosporiosis, and leaf scald. Aiming for the development of a cultivar adapted to these conditions, Coffea canephora Pierre ex A. Froehner clones were selected through genetic parameters under an irrigated system, without agrochemi
Crop Breed. Appl. Biotechnol.. Publicado em: 31/10/2019
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11. Óleos essenciais no controle de Botrytis cinerea: influência na qualidade pós-colheita de uvas ‘Rubi’
Resumo Para que ocorra o controle de doenças na pós-colheita de uvas, são utilizados agroquímicos que, apesar de eficientes, podem causar problemas à saúde humana. Neste sentido, o presente trabalho tem o objetivo de verificar o potencial dos compostos voláteis presentes no óleo essencial de pitanga (OEP), guaçatonga (OEG) e melaleuca (OEM) no contr
Braz. J. Food Technol.. Publicado em: 17/10/2019
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12. Biodiversity Conservation in Agricultural Landscapes: the Importance of the Matrix
ABSTRACT Agricultural matrices can lead to landscape homogenization, culminating in losses of biodiversity and ecosystem services. Agricultural management is determinant for developing conservation strategies. In this review, we discuss the influence of the agricultural matrix on biodiversity at different scales. Intensive agriculture under agrochemicals and
Floresta Ambient.. Publicado em: 14/10/2019