Occurrence of resistant strains of Botrytis cinerea to anilinopyrimidine fungicides in table grapes in Chile

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dc.contributor.authorLatorre, BA
dc.contributor.authorSpadaro, I
dc.contributor.authorRioja, ME
dc.date.accessioned2024-01-10T13:15:42Z
dc.date.available2024-01-10T13:15:42Z
dc.date.issued2002
dc.description.abstractEffort to control gray mold caused by Botrytis cinerea failed in a table grapevine (Vitis vinifera) vineyard near Santiago, Chile where cyprodinil (Vangard 50 WP), a new fungicide of the anilinopyrimidine group, had been applied alone up to four times per year during two growing seasons. A relatively high frequency (38.5%) of resistant isolates of R cinerea (EC50 for mycelial growth inhibition varied from. 2.9 to 4.84 mug ml(-1)) may explain the partial loss of field control efficacy obtained. Resistance was correlated. with a complete loss of in vivo sensitivity to cyprodinil. Resistant. isolates of B. cinerea showed cross resistance to the anilinopyrimidines fungicides mepanipyrim and pyrimethanil. Cyprodinil partially impaired conidia germination and differentially affected conidial germination of resistant and sensitive isolates. Significant differences (p < 0.05) in growth rate, sclerotia production and osmotic sensitivity were found among isolates of B. cinerea, but no correlation could be drawn between these biological differences and resistance or sensitivity. This indicates a disruptive selection characteristic of monogenic resistance. Thus, strategies were implemented to avoid the further development and spread of resistance in B. cinerea to the anilinopyrimidine fungicides. To our knowledge this constitutes the first mention of resistance in B. cinema populations to anilinopyrimidine fungicides in South America. (C) 2002 Elsevier Science Ltd. All rights reserved.
dc.fechaingreso.objetodigital2024-03-17
dc.format.extent5 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1016/S0261-2194(02)00074-1
dc.identifier.issn0261-2194
dc.identifier.urihttps://doi.org/10.1016/S0261-2194(02)00074-1
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/78523
dc.identifier.wosidWOS:000179777300010
dc.information.autorucAgronomía e Ing. Forestal;Latorre B;S/I;98977
dc.issue.numero10
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final961
dc.pagina.inicio957
dc.publisherELSEVIER SCI LTD
dc.revistaCROP PROTECTION
dc.rightsacceso restringido
dc.subjectBotryotinia fuckeliana
dc.subjectbotrytis bunch rot
dc.subjectchemical control
dc.subjectfungicides
dc.subjectBOTRYOTINIA-FUCKELIANA
dc.subjectINHIBITION
dc.subject.ods13 Climate Action
dc.subject.ods02 Zero Hunger
dc.subject.odspa13 Acción por el clima
dc.subject.odspa02 Hambre cero
dc.titleOccurrence of resistant strains of Botrytis cinerea to anilinopyrimidine fungicides in table grapes in Chile
dc.typeartículo
dc.volumen21
sipa.codpersvinculados98977
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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