Prevalence of isolates of Botrytis cinerea resistant to multiple fungicides in Chilean vineyards

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dc.contributor.authorLatorre, Bernardo A.
dc.contributor.authorTorres, Rene
dc.date.accessioned2024-01-10T13:16:34Z
dc.date.available2024-01-10T13:16:34Z
dc.date.issued2012
dc.description.abstractGray mold (Botrytis cinerea) is an important disease of grapevines (Vitis vinifera) and requires several fungicide treatments to achieve a satisfactory control in Chile. Furthermore, a high resistance risk has developed because of the extensive use of specific fungicides with a single-site mode of action. The aim of this study was to determine the presence of resistance to the multiple fungicides currently used against B. cinerea in Chile. During 2007-2009 and 2011, 214 isolates of B. cinerea from 36 commercial vineyards were examined for sensitivity to anilinopyrimidines (cyprodinil or pyrimethanil), demethylation inhibitors (DMIs) (tebuconazole), hydroxyanilides (fenhexamid) and phenylpyrroles (fludioxonil). Of all of the isolates, 62.7% were resistant to anilinopyrimidines, 7.2% to DMIs, 27.1% to hydoxyanilides and 44.8% to phenylpyrrole derivates. Overall, 16 (12.3%) of the isolates were sensitive; although none was resistant to all four of the fungicide classes, and 50 (38.5%), 51(39.2%), and 13 (10.0%) isolates were resistant to one, two and three fungicides, respectively. In vitro, resistant isolates were capable of causing fruit rot on wounded apples pretreated with any one of the five fungicides at label concentrations. To the best of our knowledge, this is the first report of isolates having simultaneous resistance to anilinopyrimidines, DMIs, phenylpyrroles and hydroxyanilides in B. cinerea populations from grapevines in Chile. Therefore, fungicide resistance is a serious problem that questions the sustainability of the current gray mold control strategy, which relies almost exclusively on fungicides with single-site modes of action. (C) 2012 Elsevier Ltd. All rights reserved.
dc.description.funderAnasac
dc.description.funderFrusan
dc.fechaingreso.objetodigital2024-04-09
dc.format.extent4 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.cropro.2012.03.022
dc.identifier.issn0261-2194
dc.identifier.urihttps://doi.org/10.1016/j.cropro.2012.03.022
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/78595
dc.identifier.wosidWOS:000308782700008
dc.information.autorucAgronomía e Ing. Forestal;Latorre B;S/I;98977
dc.information.autorucAgronomía e Ing. Forestal;Torres R;S/I;86705
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final52
dc.pagina.inicio49
dc.publisherELSEVIER SCI LTD
dc.revistaCROP PROTECTION
dc.rightsacceso restringido
dc.subjectFungicides
dc.subjectGrape diseases
dc.subjectGray mold
dc.subjectResistance
dc.subjectVitis vinifera
dc.subjectVEGETABLE CROPS
dc.subjectPYRIMETHANIL
dc.subjectANILINOPYRIMIDINE
dc.subjectHYDROXYANILIDE
dc.subjectPHENYLPYRROLE
dc.subject.ods13 Climate Action
dc.subject.ods02 Zero Hunger
dc.subject.odspa13 Acción por el clima
dc.subject.odspa02 Hambre cero
dc.titlePrevalence of isolates of Botrytis cinerea resistant to multiple fungicides in Chilean vineyards
dc.typeartículo
dc.volumen40
sipa.codpersvinculados98977
sipa.codpersvinculados86705
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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