Agricultural and Biological Sciences, Plant Science, Agronomy and Crop Science, Food Science
9
Scopus Publications
69
Scholar Citations
5
Scholar h-index
4
Scholar i10-index
Scopus Publications
Effect of Application Techniques on Spray Quality Optimization in Sweet Pepper Cultivation in Protected Environments Gustavo Dario, Luciano Del Bem Junior, Flávio Nunes da Silva, Matheus Mereb Negrisoli, Evandro Pereira Prado, Fagner Angelo da Silva e Oliveira, Maria Márcia Pereira Sartori, José Francisco Velásquez Sierra, Carlos Gilberto Raetano Agriengineering, 2025 Air assistance and electrical charge transfer to droplets can optimize pesticide applications and reduce losses in sweet pepper cultivation. The objective of this study was to evaluate the effects of spray rate and pneumatic spraying with and without an electrostatic charge on spray deposition, spray coverage, and ground losses in sweet pepper crops. Four application techniques were employed: standard farmer hydraulics (SFH), reduced volume hydraulics (RVH), pneumatic with air and electrostatic assistance (PAEA), and pneumatic with air assistance (PAA). The effects of the application techniques on spray deposition varied as a function of plant height, canopy depth, and leaf surface. The SFH resulted in the greatest amounts of spray deposition on the adaxial leaf surface. In contrast, PAEA resulted in the greatest amounts of deposition on the abaxial leaves. The PAEA treatment improved spray coverage on abaxial leaves of the external canopy but did not improve spray coverage on the internal canopy. Compared to the SFH treatment, the 50% reduction in the spray rate of the RVH treatment decreased deposition and spray coverage. The pneumatic treatments, regardless of electrostatic charges, resulted in lower spray loss to the ground.
Application techniques of pesticides in greenhouse tomato crops Gustavo Dario, Laís Maria B Precipito, João Victor de Oliveira, Leonardo Vinicius da S Lucilhia, Rone B de Oliveira Horticultura Brasileira, 2020 RESUMO Devido à carência de informações sobre tecnologia de aplicação na horticultura, objetivou-se com essa pesquisa avaliar o efeito de três técnicas de aplicação em diferentes partes do dossel do tomateiro cultivado em ambiente protegido. As técnicas avaliadas foram 1= Lança manual com duas pontas de jato cone vazio, JA-2 (700 kPa), taxa de aplicação de 618 L ha-1; 2= Barra vertical com seis pontas de jato cone vazio, ATR 0.5 (700 kPa), taxa de aplicação de 493 L ha-1; 3= Barra vertical com seis pontas de jato plano simples, AXI 11002 (400 kPa), taxa de aplicação de 1442 L ha-1. Como indicadores de qualidade da aplicação, foram mensurados o depósito relativo (quantitativo) e a cobertura (qualitativa) das folhas do tomateiro nas posições de coleta interna e externa das plantas, nos estratos superior, médio e inferior do dossel do tomateiro. Nos estratos inferior e médio do dossel, o depósito relativo foi respectivamente 21% e 34% menor na parte interna das plantas em relação à externa, porém no estrato superior não houve diferença. Em média a cobertura foi 2,5 vezes menor na superfície abaxial em relação a adaxial. A técnica de aplicação Lança manual (618 L ha-1), utilizada na lavoura comercial, proporcionou melhor qualidade da aplicação. No entanto, há necessidade de otimização das técnicas de aplicação no intuito de proporcionar melhor distribuição da pulverização, principalmente nas regiões críticas, como a parte interna das plantas nos estratos inferior e médio do dossel e a superfície abaxial das folhas.
Impact of storage on the physiological quality of soybean seeds after treatment with fungicides and insecticides Luciano Del Bem Junior, Jonas Leandro Ferrari, Gustavo Dario, Carlos Gilberto Raetano Journal of Seed Science, 2020 Chemical seed treatment is a practice that assists in control of pests and pathogens and allows crops to achieve their maximum yield potential. However, the storage period of seeds treated with insecticides and fungicides can affect seed physiological potential. The aim of this study was to evaluate the physiological quality of soybean seeds treated with different fungicides and insecticides after four different storage periods. The experimental design was completely randomized and the treatments were distributed in a 10 × 4 factorial arrangement in which the soybean seeds of the cultivar BMX Potência RR were treated with the following phytosanitary products: fipronil + pyraclostrobin + thiophanate-methyl, thiophanate-methyl, carbendazim, carboxin + thiram, imidacloprid + thiodicarb, chlorantraniliprole, thiamethoxam, cyantraniliprole, fipronil, and a control (seeds without chemical treatment), in four replications. The seeds were evaluated at 0, 30, 60, and 90 days after the chemical treatment. The following tests were performed: germination, first count of germination, accelerated aging, seedling emergence in sand, seedling emergence speed, and seedling dry matter. The treatment with the carboxin + thiram fungicide mixture provided for adequate physiological quality of the seeds throughout storage. The insecticide thiamethoxam has a negative effect on the physiological quality of soybean seeds that are stored after treatment with it.
Physiological potential and initial development of soybean plants as a function of seed treatment Luciano Del Bem Junior, Jonas Leandro Ferrari, Gustavo Dario, Yago de Barros Triboni, Carlos Gilberto Raetano Pesquisa Agropecuaria Tropical, 2019 Seed treatment is a process that helps to control insects and soil-borne pathogens, besides allowing a given crop to reach its maximum production potential and protect its seedlings. This study aimed to evaluate the physiological performance of seeds and the initial development of soybean, as a function of seed treatment. The study was based on a completely randomized design, with five treatments [imidacloprid + thiodicarb (75 + 225 g a.i. 100 kg-1 of seeds); chlorantraniliprole (62.5 g a.i. 100 kg-1 of seeds); cyantraniliprole (72 g a.i. 100 kg-1 of seeds), fipronil + thiophanate-methyl + pyraclostrobin (5 + 45 + 50 g a.i. 100 kg-1 of seeds); and control (seeds without treatment)]. Initially, the physiological quality of the seeds was evaluated by determining the first germination count, final germination and accelerated aging, with four replications. After that, the effect of the seed treatment on the soybean plant development was evaluated by analyzing the leaf area, number of leaves, shoot height, root and shoot dry mass and fresh mass of root nodules, with ten replications. The seed treatment with fipronil + pyraclostrobin + thiophanate-methyl allows an increased germination when the seeds are subjected to the accelerated aging test, besides an increment in the shoot height and leaf area of the plants.
Evaporation and wettability of fungicide spray, with or without adjuvant, on leaves of vegetables Laís MB Precipito, Gustavo Dario, João V Oliveira, Rone B Oliveira Horticultura Brasileira, 2018 On tomato, cucumber and bell pepper cultivation, commonly large quantities of plant-protection products are applied, to control pests and diseases, as a way to guarantee better productivity and final product quality. The knowledge of spreading and evaporation time of spray droplets is fundamental to understand the interaction between fungicides and target surface for proper distribution of this fungicide. This study was installed to determine the wetting area and droplet evaporation of sprays containing the fungicide Cabrio Top, with or without adjuvant Nimbus®, deposited on leaves and artificial surfaces (glass slide). A system was used which analyzes images composed of a droplet generator, a stereoscope camera for capturing images and a climatic chamber for controlling temperature and relative air humidity. Droplets of 600 µm in diameter containing spray solution were deposited on leaf surfaces and on glass slide and sequential images were used to quantify the wetting area and the evaporation time. The spray solution and the target surface are determinant for wetness and droplet evaporation after deposition. Evaporation time and surface tension were inversely proportional to the wetting areas. Addition of adjuvant Nimbus® (0.5%, v/v) reduced the surface tension and provided an increase in the wetting surface area, except on tomato leaves which had shown low wetting capacity in both fungicide solutions applied.
Spraying quality of crop protection products using two droplet spectra in three periods of the day Carlos E. P. L. Graziano, Karina A. Alves, Marco A. Gandolfo, Gustavo Dario, Rone B. Oliveira Engenharia Agricola, 2017 Spraying of crop protection products can be affected by weather conditions and spray nozzles, altering deposition patterns and coverage of the target surface. The objective of this research was to analyze the quality of sprayings performed in three periods of the day (9:00 am, 2:00 pm, and 6:00 pm), using two different droplet sizes (fine and coarse) in soybeans. Coverage and deposition were evaluated in the upper, middle, and lower portion of soybean canopy. Spraying the products at 2:00 pm increased leaf coverage in the medium portion but also increased losses to the soil. Spray nozzles with fine droplet sizes provided greater coverage and deposition in the medium and upper portion of the crop for the sprayings performed in the morning. If compared to coarse droplets, fine droplets increased leaf coverage and had no interference with the losses to the soil.
Influence of the glyphosate formulations on wettability and evaporation time of droplets on different targets R. B. OLIVEIRA, G. DARIO, K. A. ALVES, M. A. GANDOLFO Planta Daninha, 2015 Efficiency of weed control can be increased if the herbicide formulation provides higher target coverage and evaporation time that enable an adequate distribution of herbicide on the target plant, allowing the absorption to continue even after the droplets evaporation. The aim of this research was to assess the influence of glyphosate formulations on the wetted area and evaporation time of droplets on different targets. Tests were conducted with droplets sizing from 500 μm containing three formulations of glyphosate (isopropylamine salt, ammonium salt and potassium salt) deposited on three surfaces, two leaves (Bidens pilosa and Cenchrus echinatus) and glass slides. Sequential images analyses were used to quantify the evaporation time and the wetted area. An experimental system was utilized that was composed of a droplet generator, a stereo microscope with a camera to capture images, as well as an environmental chamber controlled for temperature and relative humidity. The kind of glyphosate formulations and target surfaces are crucial in the wetted area and evaporation time. The isopropylamine salt decreased the wetted area and evaporation time when compared with ammonium salt and potassium salt for all the surfaces deposited on. Bidens pilosa allows an increased wetted area for all the glyphosate formulations when compared to Cenchrus echinatus and glass slides.
RECENT SCHOLAR PUBLICATIONS
Effect of Application Techniques on Spray Quality Optimization in Sweet Pepper Cultivation in Protected Environments G Dario, L Del Bem Junior, FN da Silva, MM Negrisoli, EP Prado, ... AgriEngineering 7 (5), 157 , 2025 2025 Citations: 1
Choice of Application Techniques on Sweet Pepper Crop in a Protected Environment Aiming to Optimize the Spray Quality G Dario, LDB Junior, FN Da Silva, MM Negrisoli, EP Prado, ... Preprints , 2025 2025
Controle de Conyza sp. durante o período da entressafra CBP Osipi, EM dos Santos Silva, JB Osipe, MAF Caires Filho, ... Simpósio Nacional de Produção Agropecuária Sustentável , 2024 2024
Controle da Trapoeraba após a colheita do milho CBP Osipi, EM dos Santos Silva, JB Osipe, MAF Caires Filho, ... Simpósio Nacional de Produção Agropecuária Sustentável , 2024 2024
Efeito da mistura triclopir com inibidores de ACCase, no controle de Digitaria insularis EM dos Santos Silva, CBP Osipi, JB Osipe, VHM de Souza, ... Simpósio Nacional de Produção Agropecuária Sustentável , 2024 2024
Herbicidas auxínicos isolados e associados à inibidores de Protox na eliminação de soqueiras de algodão EM dos Santos Silva, CBP Osipi, JB Osipe, MAF Caires Filho, ... Simpósio Nacional de Produção Agropecuária Sustentável , 2024 2024
Impact of fungicide application volume on ASIAN rust control and soybean crop yield DM de Souza, CG Raetano, MM Negrisoli, LM Bernardes, LDB Junior, ... European Journal of Plant Pathology 163 (4), 853-864 , 2022 2022 Citations: 3
Redução da taxa de aplicação, assistência de ar e eletrostática no tratamento fitossanitário da cultura do pimentão em ambiente protegido G Dario Universidade Estadual Paulista (Unesp) , 2022 2022
Application techniques of pesticides in greenhouse tomato crops G Dario, LMB Precipito, JV Oliveira, LVS Lucilhia, RB de Oliveira Horticultura Brasileira 38, 146-152 , 2020 2020 Citations: 4
Impact of storage on the physiological quality of soybean seeds after treatment with fungicides and insecticides LD Bem Junior, JL Ferrari, G Dario, CG Raetano Journal of Seed Science 42, e202042037 , 2020 2020 Citations: 10
Técnicas de aplicação de produtos fitossanitários no tomateiro em ambiente protegido G Dario, LMB Precipito, JV Oliveira, LVS Lucilhia, RB de Oliveira Horticultura Brasileira 38, 146-152 , 2020 2020
Impacto do armazenamento sobre a qualidade fisiológica de sementes de soja após tratamento com fungicidas e inseticidas LD Bem Junior, JL Ferrari, G Dario, CG Raetano Journal of Seed Science 42, e202042037 , 2020 2020 Citations: 2
Physiological potential and initial development of soybean plants as a function of seed treatment LD Bem, JL Ferrari, G Dario, YB Triboni, CG Raetano Pesquisa Agropecuária Tropical 49, e55076 , 2019 2019 Citations: 12
Potencial fisiológico e desenvolvimento inicial de plantas de soja em função do tratamento de sementes LDB Junior, JL Ferrari, G Dario, Y de Barros Triboni, CG Raetano Pesquisa Agropecuária Tropical 49, e55076-e55076 , 2019 2019 Citations: 1
Evaporação e molhamento de fungicida em superfícies foliares da cultura do tomate, pimentão e pepino LMB Precipito, RB Oliveira, G Dario, JV de Oliveira Horticultura Brasileira 36 (3) , 2018 2018
Evaporation and wettability of fungicide spray, with or without adjuvant, on leaves of vegetables L Precipito, G Dario, JV Oliveira, RB Oliveira Horticultura Brasileira 36, 320-324 , 2018 2018 Citations: 7
Evaporação e capacidade de molhamento de caldas fungicida com o sem adjuvantes em folhas de hortaliças L Precipito, G Dario, JV Oliveira, RB Oliveira Horticultura Brasileira 36, 320-324 , 2018 2018
Spraying quality of crop protection products using two droplet spectra in three periods of the day CEPL Graziano, KA Alves, MA Gandolfo, G Dario, RB Oliveira Engenharia Agrícola 37, 1183-1189 , 2017 2017 Citations: 11
Influência de Formulações de Glyphosate sobre Molhamento e Tempo de Evaporação de Gotas em Diferentes Alvos RB OLIVEIRA, G DARIO, KA ALVES, MA GANDOLFO Planta Daninha 33, 599-606 , 2015 2015
MOST CITED SCHOLAR PUBLICATIONS
Influence of the glyphosate formulations on wettability and evaporation time of droplets on different targets RB OLIVEIRA, G Dario, KA Alves, MA Gandolfo Planta daninha 33 (3), 599-606 , 2015 2015 Citations: 15
Physiological potential and initial development of soybean plants as a function of seed treatment LD Bem, JL Ferrari, G Dario, YB Triboni, CG Raetano Pesquisa Agropecuária Tropical 49, e55076 , 2019 2019 Citations: 12
Spraying quality of crop protection products using two droplet spectra in three periods of the day CEPL Graziano, KA Alves, MA Gandolfo, G Dario, RB Oliveira Engenharia Agrícola 37, 1183-1189 , 2017 2017 Citations: 11
Impact of storage on the physiological quality of soybean seeds after treatment with fungicides and insecticides LD Bem Junior, JL Ferrari, G Dario, CG Raetano Journal of Seed Science 42, e202042037 , 2020 2020 Citations: 10
Evaporation and wettability of fungicide spray, with or without adjuvant, on leaves of vegetables L Precipito, G Dario, JV Oliveira, RB Oliveira Horticultura Brasileira 36, 320-324 , 2018 2018 Citations: 7
Application techniques of pesticides in greenhouse tomato crops G Dario, LMB Precipito, JV Oliveira, LVS Lucilhia, RB de Oliveira Horticultura Brasileira 38, 146-152 , 2020 2020 Citations: 4
Impact of fungicide application volume on ASIAN rust control and soybean crop yield DM de Souza, CG Raetano, MM Negrisoli, LM Bernardes, LDB Junior, ... European Journal of Plant Pathology 163 (4), 853-864 , 2022 2022 Citations: 3
Impacto do armazenamento sobre a qualidade fisiológica de sementes de soja após tratamento com fungicidas e inseticidas LD Bem Junior, JL Ferrari, G Dario, CG Raetano Journal of Seed Science 42, e202042037 , 2020 2020 Citations: 2
Effect of Application Techniques on Spray Quality Optimization in Sweet Pepper Cultivation in Protected Environments G Dario, L Del Bem Junior, FN da Silva, MM Negrisoli, EP Prado, ... AgriEngineering 7 (5), 157 , 2025 2025 Citations: 1
Potencial fisiológico e desenvolvimento inicial de plantas de soja em função do tratamento de sementes LDB Junior, JL Ferrari, G Dario, Y de Barros Triboni, CG Raetano Pesquisa Agropecuária Tropical 49, e55076-e55076 , 2019 2019 Citations: 1
Choice of Application Techniques on Sweet Pepper Crop in a Protected Environment Aiming to Optimize the Spray Quality G Dario, LDB Junior, FN Da Silva, MM Negrisoli, EP Prado, ... Preprints , 2025 2025
Controle de Conyza sp. durante o período da entressafra CBP Osipi, EM dos Santos Silva, JB Osipe, MAF Caires Filho, ... Simpósio Nacional de Produção Agropecuária Sustentável , 2024 2024
Controle da Trapoeraba após a colheita do milho CBP Osipi, EM dos Santos Silva, JB Osipe, MAF Caires Filho, ... Simpósio Nacional de Produção Agropecuária Sustentável , 2024 2024
Efeito da mistura triclopir com inibidores de ACCase, no controle de Digitaria insularis EM dos Santos Silva, CBP Osipi, JB Osipe, VHM de Souza, ... Simpósio Nacional de Produção Agropecuária Sustentável , 2024 2024
Herbicidas auxínicos isolados e associados à inibidores de Protox na eliminação de soqueiras de algodão EM dos Santos Silva, CBP Osipi, JB Osipe, MAF Caires Filho, ... Simpósio Nacional de Produção Agropecuária Sustentável , 2024 2024
Redução da taxa de aplicação, assistência de ar e eletrostática no tratamento fitossanitário da cultura do pimentão em ambiente protegido G Dario Universidade Estadual Paulista (Unesp) , 2022 2022
Técnicas de aplicação de produtos fitossanitários no tomateiro em ambiente protegido G Dario, LMB Precipito, JV Oliveira, LVS Lucilhia, RB de Oliveira Horticultura Brasileira 38, 146-152 , 2020 2020
Evaporação e molhamento de fungicida em superfícies foliares da cultura do tomate, pimentão e pepino LMB Precipito, RB Oliveira, G Dario, JV de Oliveira Horticultura Brasileira 36 (3) , 2018 2018
Evaporação e capacidade de molhamento de caldas fungicida com o sem adjuvantes em folhas de hortaliças L Precipito, G Dario, JV Oliveira, RB Oliveira Horticultura Brasileira 36, 320-324 , 2018 2018