The expert system OiDiag-2.2 – a useful tool for the precise schedulingof sprays against powdery mildew of vine (Erysiphe necator Schwein.)

Abstract: OiDiag-2.2 is a system of two tools. The first one helps the vine growers to find thedate for the start of the sprays against powdery mildew (Erysiphe necator). The second toolcalculates an index value considering the climatical and ontogenic inputs for the risk of powderymildew attack. Vine growers should get a table of relevant fungicides with values for themaximal time lag after the spray, which is completely covered by these fungicides consideringthese index values.