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dc.contributor.authorDomingues, R. J.-
dc.contributor.authorTöfoli, J. G.-
dc.contributor.authorFerrari, J. T-
dc.contributor.authorTortolo, M. P. L.-
dc.date.accessioned2023-03-31T18:26:04Z-
dc.date.available2023-03-31T18:26:04Z-
dc.date.issued2022-
dc.identifier.citationDomingues, R. J.; Töfoli, J. G.; Ferrari, J. T.; Tortolo, M. P. L. Effect of fungicides and biological products in controlling rust and gray mold in grapevines. O Biológico, v. 84, p. 1-11, 2022.pt_BR
dc.identifier.issn1980-6221pt_BR
dc.identifier.urihttp://repositoriobiologico.com.br//jspui/handle/123456789/1179-
dc.descriptionThe cultivation of grapevines (Vitis spp.) is integrated in the habits, cultures, and traditions since time immemorial. They are widely grown in the southern, southeastern, and northeastern regions of Brazil and are mainly consumed as fresh fruit (for domestic and export markets) or used in the production of wine, juice, soft drinks, and preserves. The State of São Paulo has a cultivation area of 8,022 ha and a yield of 147,359 tons, which is surpassed only by Rio Grande do Sul and Pernambuco (IBGE, 2021; IEA, 2019). São Paulo’s production of table grapes is particularly notable, and it is considered to be the largest Brazilian producer of the cultivar ‘Niagara Rosada’ (MELLO; MACHADO, 2020). However, the occurrence of fungal diseases can cause serious damage to grapevines and directly affect productivity, fruit aesthetics, and the quality of the industrialized product (PEARSON; GOHEEN, 1988; REYNIER, 2005; WILCOX et al., 2015). Among the most frequent diseases in São Paulo, leaf rust and gray mold on fruits are the most noteworthy.pt_BR
dc.description.abstractGrape rust and gray mold are diseases in grapevines with high destructive potential. In this study, the effectiveness of different fungicides and biological products in controlling these diseases was evaluated using the cultivar “Niágara Rosada” in the municipality of Louveira-SP, from February to April 2017. A randomized block design was used, with 10 treatments and four replicates and five plants per plot. Each treatment was applied nine times at weekly intervals, with application volumes in the range of 400–1000 L/ha. The evaluation criterion for rust was the severity, based on the percentage of leaf area affected by the disease (0 to 100%), whereas gray mold was evaluated using the incidence of diseased bunches (0 to 100%). All treatments were effective in controlling both diseases and significantly reduced the disease incidence in the experimental plot compared with that in the control plots. The best rust control was obtained by treating the plants with boscalide+pyraclostrobin (1 L c.p./ha), which was superior to fluxapyroxade+pyraclostrobin (0.5 L) + Bacillus amyloliquefaciens (0.5 kg), B. amyloliquefaciens (0.5 kg), Melaleuca alternifolia essential oil (1.5 L), and dimoxystrobin+boscalide (1 L). The plants treated with fluxapyroxad+pyraclostrobin (0.5 L) + B. amyloliquefaciens (0.5 kg) had a lower incidence of gray mold than did those treated with dimoxystrobin+boscalide (1 L), boscalide+kresoxim methyl (0.5 L), and piremethanil (1.5 L). These results suggest that the use of M. alternifolia essential oil and B. amyloliquefaciens may represent an important tool for the management of rust and gray mold in grapevines.pt_BR
dc.language.isoen_USpt_BR
dc.subjectPhakopsora euvitispt_BR
dc.subjectBotrytis cinereapt_BR
dc.subjectVitis spppt_BR
dc.titleEffect of fungicides and biological products in controlling rust and gray mold in grapevinespt_BR
dc.identifier.doi10.31368/1980-6221v84a10001pt_BR
dc.description.editoraInstituto Biológicopt_BR
dc.description.localdapublicacaoSão Paulopt_BR
dc.identifier.tipoAbertopt_BR
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