Diagnóstico Do Uso De Agrotóxicos Por Tomaticultores Do Municipio De São José De Ubá, Rj

Silva, Jaomara Nascimento da; Araujo, Tainá Costa; Ponciano, Niraldo José; Souza, Cláudio Luiz Melo de

doi:10.21206/rbas.v10i1.8579

Cited by 4 publications

(4 citation statements)

References 12 publications

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“…Para uma mesma cultura são autorizadas dezenas de ingredientes ativos com a mesma finalidade, ampliando significativamente a diversidade de agrotóxicos introduzidos no meio ambiente. Silva et al (2020) avaliaram o uso de agrotóxicos no município de São José de Ubá (RJ), um dos maiores produtores de tomate do estado, constatando que cerca de 24 produtos (75% inseticidas e 25% fungicidas), especialmente organofosforados, são utilizados de forma indiscriminada pelos agricultores. Entretanto, não foram encontrados nos bancos de dados analisados neste estudo dados referentes ao monitoramento das águas quanto à presença de agrotóxicos no município em questão.…”

Section: Mapeamento Do Uso De Agrotóxicos Por Tipo De Culturaunclassified

“…Por fim, ressalta-se que não somente as amostras com concentrações de agrotóxicos acima do VMP merecem atenção, mas também as que foram detectados agrotóxicos e, principalmente, onde o monitoramento de águas para consumo humano vem sendo constantemente negligenciado. Segundo Silva et al (2020), os órgãos ambientais brasileiros têm pouco controle em relação ao baixo índice de monitoramento de muitas substâncias na água destinada ao consumo humano, assim como da presença de agrotóxicos na água. Assim este trabalho pode contribuir para alertar a população do estado do Rio de Janeiro sobre a qualidade da água consumida no estado, podendo pressionar o poder público a cobrar mais das concessionárias de prestação de serviço.…”

Section: Número De Amostras De áGua Para Consumo Humano Analisadas Pa...unclassified

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Monitoramento de agrotóxicos em água para consumo humano no estado do Rio de Janeiro (2015-2019)

Bastos¹,

Camargo²,

Netto³

et al. 2022

REGA

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Section: Mapeamento Do Uso De Agrotóxicos Por Tipo De Culturaunclassified

Section: Número De Amostras De áGua Para Consumo Humano Analisadas Pa...unclassified

Monitoramento de agrotóxicos em água para consumo humano no estado do Rio de Janeiro (2015-2019)

Bastos¹,

Camargo²,

Netto³

et al. 2022

REGA

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“…The consequences of the indiscriminate use of external inputs in agriculture impact economy, environment, and health with devastating effects, especially in the least-developed countries. For example, in the north region of Rio de Janeiro state, Brazil, characterized by family owned tomato farms,, the indiscriminate use of 24 different products (75% insecticides and 25% fungicides) has been found [3]. Farmers and their families including uninvolved children presented several symptoms of acute intoxication, mental disorders, such as depression and anxiety, and respiratory difficulties [4].…”

Section: Introductionmentioning

confidence: 99%

Organic matter in the pest and plant disease control: a meta-analysis

Silva

2022

Chem. Biol. Technol. Agric.

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Background Pesticides have become a central public health problem and a source of environmental contamination. The use of organic matter is an important strategy to reduce synthetic agrochemicals, improve soil conditions, and increase nutrient uptake by plants. Organic matter can also induce plant resistance against biotic stress in some circumstances. However, the results reported for different types of organic matter applications are often very different form each other, thus making difficult their interpretation and hindering and discouraging their use as valuable alternative. Identifying the main factors involved in the efficacy of these sustainable methodologies and the associated research gaps is important to increase the efficiency of organic matter and reduce the use of pesticides. Materials and methods We performed a comprehensive meta-analysis of the current recent scientific literature on the use of organic matter as control method for pest and disease, using data reduction techniques, such as principal component analysis. We found 695 articles listing the keywords in the databases between 2010 and 2021 and selected 42 that met inclusion criteria. Results In general, all organic matter reported showed a high inhibition of pests and diseases. Control effectiveness was close to 75% for fungal diseases and 67% for the pest control. The source of organic matter most frequently reported was the vermicompost. However, humic substances showed the greatest effectiveness of 74% when compared to both fungal and bacterial disease control. The concentration of humic substances ranged from 1 to 500 mg L−1, with the highest concentrations used in case of soil application. Conclusions The study demonstrated the potential role of organic matter as a resistance elicitor in plants, thus allowing a partial/total reduction of pesticides in crops. Despite the efficiency reported in the works, the mechanisms of induction of pest and disease control remains poorly studied. Graphical Abstract

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“…São José de Ubá is located in the northwest of the Rio de Janeiro state (Brazil), a region with one of the largest tomato producers in the Rio de Janeiro state. The diagnoses for pesticides use by tomato farmers showed that a mixture of different products is indiscriminately used without requirement, not respecting pre harvest interval (PHI) or waiting period, lacking technical assistance during all cultivation cycle and without using personal protective equipment [12,13]. There are no products to control bacterial diseases, and farmers with fear of losing their production use many products prohibited or unlicensed in an attempt to preserve the harvest.…”

Section: Introductionmentioning

confidence: 99%

Attenuations of bacterial spot disease Xanthomonas euvesicatoria on tomato plants treated with biostimulants

Silva

Olivares

Sudré³

et al. 2021

Chem. Biol. Technol. Agric.

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Background The bacterial-spot disease caused by different Xanthomonas species is one of the major tomato diseases that reduce crop production and quality. Pesticides indiscriminate usage has resulted in an increase in resistant bacterial strains as well as contamination of farmers, consumers and the environment. Plant growth-promoting bacteria and humic acids can act as elicitors of plant defence mechanism causing extensive transcriptional and metabolic reprogramming which, in turn, produce a range of plant chemical defences. The purpose of this study was to study how humic acids and plant growth-promoting bacteria, when applied to the substrate, affected the severity of bacterial spot symptoms in tomato leaves. Materials and methods One-month-old Micro-Tom tomato (Solanum lycopersicum L.) were transferred to 3 L pots filled with a sterile mixture of sand and vermiculite (2:1, v:v) and treated or not (control) with 250 mL of 4.5 mmol C. L−1 of humic acids, Herbaspirillum seropedicae (108 CFU. mL−1) and the combination of humic acids plus H. seropedicae. One day after substrate treatment, the leaves were inoculated (or not) with X. euvesicatoria (Xe). The area below the disease progression curve based on severity scores and the number of symptomatic leaflets was used to assess phytopathogen virulence. The concentration of oxalic, citric and succinic acids in leaf extracts were determined using HPLC analysis. Results Sole or combined H. seropedicae (BAC) and humic acids (HA) application promoted shoot and root growth related to control when plants were challenged with Xe pathogen. For plants inoculated with Xe, more significant plant-growth promotion results were obtained for HA + BAC treatment. The first visible symptoms were observed 16 days after inoculation with 2 × 104 CFU. g−1 of Xe cells in leaves of control plants. HA and BAC applied alone or combined reduced disease severity. Only plants treated with HA were able to reduce disease incidence (number of the leaflets with symptoms). Organic acids, such as oxalic, citric and succinic acids, rose in Xe-inoculated leaves. The reduced amount of organic acids in diseased leaves treated with HA + BAC may be linked to a decrease in disease progression. Conclusion Humic acids and H. seropedicae increased growth by modulating the content of organic acids in leaf tissue, attenuating the symptoms of the bacterial spot disease. Graphic abstract

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Diagnóstico Do Uso De Agrotóxicos Por Tomaticultores Do Municipio De São José De Ubá, Rj

Cited by 4 publications

References 12 publications

Monitoramento de agrotóxicos em água para consumo humano no estado do Rio de Janeiro (2015-2019)

Monitoramento de agrotóxicos em água para consumo humano no estado do Rio de Janeiro (2015-2019)

Organic matter in the pest and plant disease control: a meta-analysis

Attenuations of bacterial spot disease Xanthomonas euvesicatoria on tomato plants treated with biostimulants

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