Variety resistance to Cercospora leaf spot and fungicide application as tools of integrated pest management in sugar beet cultivation - A German case study

An analysis of the effect of different control strategies agreed with prior studies that WSY is higher in treatments with fungicide applications according to the summary threshold system than in the non-treated control. Preventive fungicide applications appeared to be unnecessary for German growing areas as they did not increase WSY. Moreover, a reduced strategy related to the summary threshold system may allow a reduction in fungicide use as it achieved a WSY comparable to the threshold strategy but with omission of the last application.