Grapevine powdery mildew
progresses Reduced photosynthetic activity and weakened vine vigor Shoot and tendril symptoms White, powdery patches on young shoots and tendrils Reduced shoot [...] including leaves, shoots, flowers, and grape clusters, causing yield losses, reduced fruit quality, and increased risk of bunch rot. Powdery mildew thrives under [...] development Powdery coating on clusters resulting in loose, misshapen bunches Reduced yield potential Berry symptoms High susceptibility from fruit set until