Data from 36 fungicide trials on grape downy mildew across Europe 2012-2019

The data set comprises records of disease incidence and yield from untreated and treated plots. The data is provided as both a tab-separated text file and a binary R data file. The R files provides code to read and plot the data. The plot produced is also provided as a PNG file. The field trials were conducted by BASF, Germany. <em>Details</em><br> The PlantPart column refers to leaves (LEAF), inflorescences (RACEME) and grape clusters (FRUIT). The disease (GDM) was assessed by two methods (Method column), designated P%FREQ and P%INF:<br> • P%INF: Intensity of attack was obtained as a visual estimation of the percentage of each plant part (leaf, raceme or grape cluster) affected by disease.<br> • P%FREQ: Frequency of attack was obtained as the number of infected plant parts (leaf, raceme or grape cluster). The frequency was expressed as a percentage of the number sampled.