Exploring the Efficacy of Herbal Fungicides in Controlling Uncinula Necator Causing Powdery Mildew Disease in Grape Plants

Abstract Powdery mildew disease caused by Uncinula necator is a significant threat to grape production worldwide. The excessive use of synthetic fungicides has risen environmental and health concerns. This study aimed to evaluate the efficacy of herbal fungicides as an alternative to synthetic fungicides in controlling powdery mildew disease in grape plants. Our results showed that herbal fungicides, particularly those derived from clove and cinnamon exhibited significant antifungal activity against U. necator. These findings suggest that herbal fungicides could be a promising eco-friendly approach for managing powdery mildew disease in grape plants