Grapevine powdery mildew
canopy structure and fruit support Flower and cluster symptoms Infection of flowers and young clusters during flowering Poor fruit set and increased flower [...] leaves, shoots, flowers, and grape clusters, causing yield losses, reduced fruit quality, and increased risk of bunch rot. Powdery mildew thrives under warm [...] etic capacity, while shoots and flowers exhibit stunted growth and poor fruit set. During berry development, the pathogen colonizes the epidermis, causing