Treating Powdery Mildew On Trees: What To Do For Trees ...
05-05-2021· Prevent powdery mildew fungus on trees by planting them in sunny sites, trimming inner branches to increase air circulation, and limiting fertilizer. Treating powdery mildew on trees begins by vigilance. Keep your eye on your fruit trees as the new shoots develop in the springtime, looking for symptoms of powdery mildew.