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Sour rot (SR) is a disease complex that affects grape berries during ripening and can cause severe yield losses and deterioration of wine quality. The etiology and epidemiology of the disease remain uncertain, which has severely limited the development of specific, targeted management strategies. In this study, a network meta-analysis was applied to data collected through a previous systematic literature review for statistically comparing the efficacy of different methods for the control of SR and some filamentous fungi isolated from rotten berries. Use of either synthetic fungicides (CHEM) and natural compounds or biocontrol microorganisms (BIO) provided partial and variable control of SR; however, the efficacy of BIO was similar to, or higher than, that provided by CHEM. Agronomic practices (AGRO) had a significant but lower effect on SR. The integration of different control methods (IPM) provided better and less variable disease control than any single method. Natural compounds, such as zeolites and bicarbonates, and microorganisms (e.g., yeasts Candida and Aureobasidium) are also promising alternatives to synthetic fungicides in SR control.
Brischetto et al. (Wed,) studied this question.
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