Control of Dalbulus maidis in maize crop with electrostatic spraying

Detalhes bibliográficos
Autor(a) principal: Marques, Rodrigo Santos
Data de Publicação: 2019
Outros Autores: Rodrigues da Cunha, João Paulo Arantes, Alves, Guilherme Sousa, Alves, Thales Cassemiro, Silva, Sérgio Macedo, Zandonadi, César Henrique Souza
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Bioscience journal (Online)
Texto Completo: https://seer.ufu.br/index.php/biosciencejournal/article/view/42088
Resumo: Among the pests that attack the maize, the maize leafhopper, which causes direct damages by sap-sucking and indirect ones, stands out as being a vector of pathogens and viruses, and can cause losses of up to 100% of the production. An alternative to improve the chemical control of this pest is the use of electrostatic spraying technology. However, there is no research support. This study aimed to evaluate the deposition of spray in the maize crop and the effectiveness in the chemical control of the maize leafhopper, using the electrostatic spraying system, at different application rates, compared to the conventional spraying system. The experiment was conducted in a randomized block design with five treatments, in a 2x2 + 2 factorial scheme: presence or absence of electrostatic spraying system, two application rates (35 and 50 L ha-1), an additional treatment using a hydraulic spray nozzle and a rate of 100 L ha-1, and other additional treatment without the application of insecticide, in order to support the study of pest infestation. Each treatment consisted of eight replicates, in which the spray deposition in the maize canopy and the efficiency in the control were evaluated. For the insecticide applications, a boom sprayer with induction electrostatic spraying system was used with indirect electrification. To evaluate the deposition, the Brilliant Blue FCF marker was added to the spray to be detected by absorbance in spectrophotometry. For the biological efficacy of the maize leafhopper, the insecticide composed of thiamethoxam and lambda-cyhalothrin was used compared with the control without the application. There was a significant increase in the spray deposition, both in the upper and lower maize leaves, with the use of electrostatic spray technology compared to the conventional spray system. The control of the maize leafhopper was also superior. The electrostatic spraying also made it possible to reduce the application rate by approximately three times in relation to that used in conventional hydraulic spraying.
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spelling Control of Dalbulus maidis in maize crop with electrostatic sprayingControle de Dalbulus maidis na cultura do milho com pulverização eletrostáticaApplication technologySprayPesticide.Agricultural Sciences Among the pests that attack the maize, the maize leafhopper, which causes direct damages by sap-sucking and indirect ones, stands out as being a vector of pathogens and viruses, and can cause losses of up to 100% of the production. An alternative to improve the chemical control of this pest is the use of electrostatic spraying technology. However, there is no research support. This study aimed to evaluate the deposition of spray in the maize crop and the effectiveness in the chemical control of the maize leafhopper, using the electrostatic spraying system, at different application rates, compared to the conventional spraying system. The experiment was conducted in a randomized block design with five treatments, in a 2x2 + 2 factorial scheme: presence or absence of electrostatic spraying system, two application rates (35 and 50 L ha-1), an additional treatment using a hydraulic spray nozzle and a rate of 100 L ha-1, and other additional treatment without the application of insecticide, in order to support the study of pest infestation. Each treatment consisted of eight replicates, in which the spray deposition in the maize canopy and the efficiency in the control were evaluated. For the insecticide applications, a boom sprayer with induction electrostatic spraying system was used with indirect electrification. To evaluate the deposition, the Brilliant Blue FCF marker was added to the spray to be detected by absorbance in spectrophotometry. For the biological efficacy of the maize leafhopper, the insecticide composed of thiamethoxam and lambda-cyhalothrin was used compared with the control without the application. There was a significant increase in the spray deposition, both in the upper and lower maize leaves, with the use of electrostatic spray technology compared to the conventional spray system. The control of the maize leafhopper was also superior. The electrostatic spraying also made it possible to reduce the application rate by approximately three times in relation to that used in conventional hydraulic spraying.Dentre as pragas que atacam a cultura do milho, atualmente destaca-se a cigarrinha do milho, causadora de danos diretos pela sucção de seiva e indiretos por ser um vetor de patógenos e vírus, podendo causar perdas de até 100% da produção. Uma alternativa para melhorar o controle químico desta praga é o uso da tecnologia de pulverização eletrostática, no entanto, ainda sem o devido respaldo da pesquisa. Esse trabalho objetivou avaliar a deposição de calda e a eficácia no controle da cigarrinha do milho, utilizando o sistema de pulverização eletrostática, comparado ao sistema convencional, em diferentes taxas de aplicação. O experimento foi conduzido no delineamento de blocos casualizados com cinco tratamentos, em esquema fatorial 2x2+2: presença ou ausência de sistema de pulverização eletrostático, duas taxas de aplicação (35 e 50 L ha-1), um tratamento adicional, empregando ponta de pulverização hidráulica e taxa de 100 L ha-1, e outro tratamento adicional sem aplicação de inseticida, com intuito de embasar o estudo de infestação da praga. Cada tratamento constou de oito repetições, nas quais foram avaliadas as deposições de calda e a eficácia no controle. Para as aplicações do inseticida, foi utilizado um pulverizador de barra com sistema de pulverização eletrostática por indução com eletrificação indireta. Para a avaliação da deposição, adicionou-se à calda o marcador Azul Brilhante para ser detectado por absorbância em espectrofotometria. Para a avaliação de eficácia biológica da cigarrinha do milho, foi utilizado o inseticida composto por tiametoxam e lambda-cialotrina, comparando com a testemunha sem aplicação. Houve um incremento significativo na deposição de calda, tanto nas folhas superiores quanto nas folhas inferiores do milho, com o uso da tecnologia de pulverização eletrostática comparada ao sistema de pulverização convencional. O controle fitossanitário da cigarrinha do milho também se mostrou superior. A pulverização eletrostática possibilitou ainda a redução da taxa de aplicação em aproximadamente três vezes em relação à utilizada na pulverização hidráulica convencional.EDUFU2019-12-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.ufu.br/index.php/biosciencejournal/article/view/4208810.14393/BJ-v35n6a2019-42088Bioscience Journal ; Vol. 35 No. 6 (2019): Nov./Dec.; 1780-1788Bioscience Journal ; v. 35 n. 6 (2019): Nov./Dec.; 1780-17881981-3163reponame:Bioscience journal (Online)instname:Universidade Federal de Uberlândia (UFU)instacron:UFUenghttps://seer.ufu.br/index.php/biosciencejournal/article/view/42088/27457Brazil; ContemporaryCopyright (c) 2019 Rodrigo Santos Marques, João Paulo Arantes Rodrigues da Cunha, Guilherme Sousa Alves, Thales Cassemiro Alves, Sérgio Macedo Silva, César Henrique Souza Zandonadihttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessMarques, Rodrigo SantosRodrigues da Cunha, João Paulo ArantesAlves, Guilherme SousaAlves, Thales CassemiroSilva, Sérgio MacedoZandonadi, César Henrique Souza2022-01-24T00:12:28Zoai:ojs.www.seer.ufu.br:article/42088Revistahttps://seer.ufu.br/index.php/biosciencejournalPUBhttps://seer.ufu.br/index.php/biosciencejournal/oaibiosciencej@ufu.br||1981-31631516-3725opendoar:2022-01-24T00:12:28Bioscience journal (Online) - Universidade Federal de Uberlândia (UFU)false
dc.title.none.fl_str_mv Control of Dalbulus maidis in maize crop with electrostatic spraying
Controle de Dalbulus maidis na cultura do milho com pulverização eletrostática
title Control of Dalbulus maidis in maize crop with electrostatic spraying
spellingShingle Control of Dalbulus maidis in maize crop with electrostatic spraying
Marques, Rodrigo Santos
Application technology
Spray
Pesticide.
Agricultural Sciences
title_short Control of Dalbulus maidis in maize crop with electrostatic spraying
title_full Control of Dalbulus maidis in maize crop with electrostatic spraying
title_fullStr Control of Dalbulus maidis in maize crop with electrostatic spraying
title_full_unstemmed Control of Dalbulus maidis in maize crop with electrostatic spraying
title_sort Control of Dalbulus maidis in maize crop with electrostatic spraying
author Marques, Rodrigo Santos
author_facet Marques, Rodrigo Santos
Rodrigues da Cunha, João Paulo Arantes
Alves, Guilherme Sousa
Alves, Thales Cassemiro
Silva, Sérgio Macedo
Zandonadi, César Henrique Souza
author_role author
author2 Rodrigues da Cunha, João Paulo Arantes
Alves, Guilherme Sousa
Alves, Thales Cassemiro
Silva, Sérgio Macedo
Zandonadi, César Henrique Souza
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Marques, Rodrigo Santos
Rodrigues da Cunha, João Paulo Arantes
Alves, Guilherme Sousa
Alves, Thales Cassemiro
Silva, Sérgio Macedo
Zandonadi, César Henrique Souza
dc.subject.por.fl_str_mv Application technology
Spray
Pesticide.
Agricultural Sciences
topic Application technology
Spray
Pesticide.
Agricultural Sciences
description Among the pests that attack the maize, the maize leafhopper, which causes direct damages by sap-sucking and indirect ones, stands out as being a vector of pathogens and viruses, and can cause losses of up to 100% of the production. An alternative to improve the chemical control of this pest is the use of electrostatic spraying technology. However, there is no research support. This study aimed to evaluate the deposition of spray in the maize crop and the effectiveness in the chemical control of the maize leafhopper, using the electrostatic spraying system, at different application rates, compared to the conventional spraying system. The experiment was conducted in a randomized block design with five treatments, in a 2x2 + 2 factorial scheme: presence or absence of electrostatic spraying system, two application rates (35 and 50 L ha-1), an additional treatment using a hydraulic spray nozzle and a rate of 100 L ha-1, and other additional treatment without the application of insecticide, in order to support the study of pest infestation. Each treatment consisted of eight replicates, in which the spray deposition in the maize canopy and the efficiency in the control were evaluated. For the insecticide applications, a boom sprayer with induction electrostatic spraying system was used with indirect electrification. To evaluate the deposition, the Brilliant Blue FCF marker was added to the spray to be detected by absorbance in spectrophotometry. For the biological efficacy of the maize leafhopper, the insecticide composed of thiamethoxam and lambda-cyhalothrin was used compared with the control without the application. There was a significant increase in the spray deposition, both in the upper and lower maize leaves, with the use of electrostatic spray technology compared to the conventional spray system. The control of the maize leafhopper was also superior. The electrostatic spraying also made it possible to reduce the application rate by approximately three times in relation to that used in conventional hydraulic spraying.
publishDate 2019
dc.date.none.fl_str_mv 2019-12-02
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://seer.ufu.br/index.php/biosciencejournal/article/view/42088
10.14393/BJ-v35n6a2019-42088
url https://seer.ufu.br/index.php/biosciencejournal/article/view/42088
identifier_str_mv 10.14393/BJ-v35n6a2019-42088
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://seer.ufu.br/index.php/biosciencejournal/article/view/42088/27457
dc.rights.driver.fl_str_mv https://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.coverage.none.fl_str_mv Brazil; Contemporary
dc.publisher.none.fl_str_mv EDUFU
publisher.none.fl_str_mv EDUFU
dc.source.none.fl_str_mv Bioscience Journal ; Vol. 35 No. 6 (2019): Nov./Dec.; 1780-1788
Bioscience Journal ; v. 35 n. 6 (2019): Nov./Dec.; 1780-1788
1981-3163
reponame:Bioscience journal (Online)
instname:Universidade Federal de Uberlândia (UFU)
instacron:UFU
instname_str Universidade Federal de Uberlândia (UFU)
instacron_str UFU
institution UFU
reponame_str Bioscience journal (Online)
collection Bioscience journal (Online)
repository.name.fl_str_mv Bioscience journal (Online) - Universidade Federal de Uberlândia (UFU)
repository.mail.fl_str_mv biosciencej@ufu.br||
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