Weather Variables for Within-Vineyard Awareness of Botrytis Risk

Figure 5

Reproduced from Song [43] and adapted with the author’s permission, (a) elevation (minimum: 26.6 m maximum: 53.9 m above sea level) and (b) BBR severity (%) on 27 March 2019, 19 days before commercial grape harvest. The five vineyard blocks represent a total of 4.8 ha of Sauvignon blanc vines near Kayena, Tasmania, with the mean BBR severities (%) in ascending order: 0.6, 1.7, 2.9, 5.4, and 10.1 (SE for each mean: 0.002–0.018, n = 25–30). Song [43] sampled each vine (black dot) and transformed data to a disease score prior to kriging using the VESPER tool of precision agriculture tools [48].

(a)

(b)