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dc.contributor.authorCalvo Garrido, Carlos
dc.contributor.authorViñas Almenar, Inmaculada
dc.contributor.authorElmer, Philip AG
dc.contributor.authorUsall i Rodié, Josep
dc.contributor.authorTeixidó i Espasa, Neus
dc.date.accessioned2017-05-19T09:21:08Z
dc.date.issued2014
dc.identifier.issn1526-498X
dc.identifier.urihttp://hdl.handle.net/10459.1/59653
dc.description.abstractBACKGROUND: Necrotic tissues within grape (Vitisvinifera) bunches represent an important source of Botrytiscinerea inoculum for Botrytis bunch rot (BBR) at harvest in vineyards. This research quantified the incidence of B.cinerea on necrotic floral and fruit tissues and the efficacy of biologically based treatments for suppression of B. cinerea secondary inoculum within developing bunches. RESULTS: At veraison (2009 and 2010), samples of aborted flowers, aborted fruits and calyptras were collected, and the incidence and sporulation of B. cinerea were determined. Aborted fruits presented significantly higher incidence in untreated samples. Early-season applications of Candida sake plus Fungicover, Fungicover alone or Ulocladium oudemansii significantly reduced B. cinerea incidence on aborted flowers and calyptras by 46 – 85%. Chitosan treatment significantly reduced B. cinerea incidence on calyptras. None of the treatments reduced B.cinerea incidence on aborted fruits. Treatments significantly reduced sporulation severity by 48% or more. CONCLUSIONS: Treatments were effective at reducing B. cinerea secondary inoculum on necrotic tissues, in spite of the variable control on aborted fruits. This is the first report to quantify B. cinerea on several tissues of bunch trash and to describe the effective suppression of saprophytic B. cinerea inoculum by biologically based treatments.
dc.description.sponsorshipThe authors would like to thank the University of Lleida for Carlos Calvo-Garrido’s PhD grant and organic production research project, the European Union (INTERREG REDBIO project) for their financial support and the Catalan Government for Dr Philip Elmer’s travel assistance grant. Thanks also to Plant and Food Research for assistance with living expenses while at IRTA.
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.publisherWiley
dc.relation.isformatofReproducció del document publicat a: https://doi.org/10.1002/ps.3587
dc.relation.ispartofPest Management Science, 2014, vol. 70, núm. 4, p. 595-602
dc.rights(c) Society of Chemical Industry, 2013
dc.subjectBiological control
dc.subjectCandida sake CPA-1
dc.subjectChitosan
dc.subjectVitis vinifera
dc.titleSuppression of Botrytis cinerea on necrotic grapevine tissues by early season applications of natural products and biological control agents
dc.typeinfo:eu-repo/semantics/article
dc.date.updated2017-05-19T09:21:08Z
dc.identifier.idgrec020760
dc.type.versioninfo:eu-repo/semantics/publishedVersion
dc.rights.accessRightsinfo:eu-repo/semantics/restrictedAccess
dc.identifier.doihttps://doi.org/10.1002/ps.3587
dc.date.embargoEndDate2025-01-01


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