Compatibility of conventional agrochemicals used in rice crops with the entomopathogenic fungus Metarhizium anisopliae
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Scientia Agrícola (Online) |
Texto Completo: | https://www.revistas.usp.br/sa/article/view/58590 |
Resumo: | The toxicological impact of chemical pesticides on fungal entomopathogens and their use in tank-mixing can be directly measured through in vitro compatibility tests. This study reports the in vitro toxicity of eight insecticides, four fungicides and five herbicides in the conidial germination, vegetative growth and conidiation of Metarhizium anisopliae (strain CG 168). A conidial suspension containing the pesticide at recommended field dosage was subjected to constant agitation in a rotary shaker for 3h to simulate a tank mixing. Then, aliquots of each suspension were used to determine conidial germination, vegetative growth and conidiation on potato dextrose agar (PDA). The fungicides difenoconazole (69 mL ha-1), propiconazole (75 mL ha-1), trifloxystrobin (313 g ha-1) and azoxystrobin (56 mL ha-1) were the most harmful products to all biological stages of M. anisopliae and they should not be applied together with this fungus in tank mixing. The insecticides exhibited the least degree of toxicity to this fungal pathogen, whereas the herbicides had the greatest impact on mycelial growth. The agrochemicals compatible with M. anisopliae were the insecticides methyl parathion (240 mL ha-1), thiamethoxam (31 g ha-1), and lambda-cyhalothrin (6.3 mL ha-1) and the herbicides glyphosate (1560 mL ha-1), bentazon (720 mL ha-1), and imazapic+ imazapyr (84 g ha-1). The compatible pesticides could be simultaneously used with this bio-control agent for integrated pest management in rice production systems. |
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Compatibility of conventional agrochemicals used in rice crops with the entomopathogenic fungus Metarhizium anisopliae pesticide compatibilityconidiationentomopathogenic fungigerminationvegetative growth The toxicological impact of chemical pesticides on fungal entomopathogens and their use in tank-mixing can be directly measured through in vitro compatibility tests. This study reports the in vitro toxicity of eight insecticides, four fungicides and five herbicides in the conidial germination, vegetative growth and conidiation of Metarhizium anisopliae (strain CG 168). A conidial suspension containing the pesticide at recommended field dosage was subjected to constant agitation in a rotary shaker for 3h to simulate a tank mixing. Then, aliquots of each suspension were used to determine conidial germination, vegetative growth and conidiation on potato dextrose agar (PDA). The fungicides difenoconazole (69 mL ha-1), propiconazole (75 mL ha-1), trifloxystrobin (313 g ha-1) and azoxystrobin (56 mL ha-1) were the most harmful products to all biological stages of M. anisopliae and they should not be applied together with this fungus in tank mixing. The insecticides exhibited the least degree of toxicity to this fungal pathogen, whereas the herbicides had the greatest impact on mycelial growth. The agrochemicals compatible with M. anisopliae were the insecticides methyl parathion (240 mL ha-1), thiamethoxam (31 g ha-1), and lambda-cyhalothrin (6.3 mL ha-1) and the herbicides glyphosate (1560 mL ha-1), bentazon (720 mL ha-1), and imazapic+ imazapyr (84 g ha-1). The compatible pesticides could be simultaneously used with this bio-control agent for integrated pest management in rice production systems. Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz2013-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/sa/article/view/5859010.1590/S0103-90162013000300003Scientia Agricola; v. 70 n. 3 (2013); 152-160Scientia Agricola; Vol. 70 Núm. 3 (2013); 152-160Scientia Agricola; Vol. 70 No. 3 (2013); 152-1601678-992X0103-9016reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USPenghttps://www.revistas.usp.br/sa/article/view/58590/61656Copyright (c) 2015 Scientia Agricolainfo:eu-repo/semantics/openAccessSilva, Rodrigo Alves daQuintela, Eliane DiasMascarin, Gabriel MouraBarrigossi, José Alexandre FreitasLião, Luciano Moraes2013-07-16T00:56:49Zoai:revistas.usp.br:article/58590Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:2013-07-16T00:56:49Scientia Agrícola (Online) - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
Compatibility of conventional agrochemicals used in rice crops with the entomopathogenic fungus Metarhizium anisopliae |
title |
Compatibility of conventional agrochemicals used in rice crops with the entomopathogenic fungus Metarhizium anisopliae |
spellingShingle |
Compatibility of conventional agrochemicals used in rice crops with the entomopathogenic fungus Metarhizium anisopliae Silva, Rodrigo Alves da pesticide compatibility conidiation entomopathogenic fungi germination vegetative growth |
title_short |
Compatibility of conventional agrochemicals used in rice crops with the entomopathogenic fungus Metarhizium anisopliae |
title_full |
Compatibility of conventional agrochemicals used in rice crops with the entomopathogenic fungus Metarhizium anisopliae |
title_fullStr |
Compatibility of conventional agrochemicals used in rice crops with the entomopathogenic fungus Metarhizium anisopliae |
title_full_unstemmed |
Compatibility of conventional agrochemicals used in rice crops with the entomopathogenic fungus Metarhizium anisopliae |
title_sort |
Compatibility of conventional agrochemicals used in rice crops with the entomopathogenic fungus Metarhizium anisopliae |
author |
Silva, Rodrigo Alves da |
author_facet |
Silva, Rodrigo Alves da Quintela, Eliane Dias Mascarin, Gabriel Moura Barrigossi, José Alexandre Freitas Lião, Luciano Moraes |
author_role |
author |
author2 |
Quintela, Eliane Dias Mascarin, Gabriel Moura Barrigossi, José Alexandre Freitas Lião, Luciano Moraes |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Silva, Rodrigo Alves da Quintela, Eliane Dias Mascarin, Gabriel Moura Barrigossi, José Alexandre Freitas Lião, Luciano Moraes |
dc.subject.por.fl_str_mv |
pesticide compatibility conidiation entomopathogenic fungi germination vegetative growth |
topic |
pesticide compatibility conidiation entomopathogenic fungi germination vegetative growth |
description |
The toxicological impact of chemical pesticides on fungal entomopathogens and their use in tank-mixing can be directly measured through in vitro compatibility tests. This study reports the in vitro toxicity of eight insecticides, four fungicides and five herbicides in the conidial germination, vegetative growth and conidiation of Metarhizium anisopliae (strain CG 168). A conidial suspension containing the pesticide at recommended field dosage was subjected to constant agitation in a rotary shaker for 3h to simulate a tank mixing. Then, aliquots of each suspension were used to determine conidial germination, vegetative growth and conidiation on potato dextrose agar (PDA). The fungicides difenoconazole (69 mL ha-1), propiconazole (75 mL ha-1), trifloxystrobin (313 g ha-1) and azoxystrobin (56 mL ha-1) were the most harmful products to all biological stages of M. anisopliae and they should not be applied together with this fungus in tank mixing. The insecticides exhibited the least degree of toxicity to this fungal pathogen, whereas the herbicides had the greatest impact on mycelial growth. The agrochemicals compatible with M. anisopliae were the insecticides methyl parathion (240 mL ha-1), thiamethoxam (31 g ha-1), and lambda-cyhalothrin (6.3 mL ha-1) and the herbicides glyphosate (1560 mL ha-1), bentazon (720 mL ha-1), and imazapic+ imazapyr (84 g ha-1). The compatible pesticides could be simultaneously used with this bio-control agent for integrated pest management in rice production systems. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-06-01 |
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://www.revistas.usp.br/sa/article/view/58590 10.1590/S0103-90162013000300003 |
url |
https://www.revistas.usp.br/sa/article/view/58590 |
identifier_str_mv |
10.1590/S0103-90162013000300003 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://www.revistas.usp.br/sa/article/view/58590/61656 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2015 Scientia Agricola info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2015 Scientia Agricola |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz |
publisher.none.fl_str_mv |
Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz |
dc.source.none.fl_str_mv |
Scientia Agricola; v. 70 n. 3 (2013); 152-160 Scientia Agricola; Vol. 70 Núm. 3 (2013); 152-160 Scientia Agricola; Vol. 70 No. 3 (2013); 152-160 1678-992X 0103-9016 reponame:Scientia Agrícola (Online) instname:Universidade de São Paulo (USP) instacron:USP |
instname_str |
Universidade de São Paulo (USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Scientia Agrícola (Online) |
collection |
Scientia Agrícola (Online) |
repository.name.fl_str_mv |
Scientia Agrícola (Online) - Universidade de São Paulo (USP) |
repository.mail.fl_str_mv |
scientia@usp.br||alleoni@usp.br |
_version_ |
1800222791950139392 |