Evaluation of resistance in sweet basil cultivars against basil downy mildew

Abstract

The resistance of commercial sweet basil cultivars against basil downy mildew (BDM) caused by Peronospora belbahrii was assessed during pot and field experiments. In all experiments, var. “Campione” exhibited high resistance with no disease symptoms. In contrast, “Devotion” exhibited moderate resistance, and “TSGI-208” and “Obsession” exhibited low resistance. Furthermore, “Basil” was susceptible to the highest disease severity. According to these results, the combination of resistant cultivars and fungicide application could effectively control basil downy mildew.