Tubakia leaf spot is a common fungal disease that affects many species of oak trees, particularly during periods of warm, wet weather. While often considered more cosmetic than life-threatening, repeated infections can contribute to stress and reduced vigor in susceptible trees. Symptoms typically appear as small brown to reddish spots on leaves that gradually enlarge over time. Many lesions develop dark centers with lighter halos, giving the foliage a scorched or blotchy app

Powdery mildew is a common fungal disease that affects a wide range of trees, shrubs, and ornamental plants throughout the growing season. It appears as a white or gray powder-like coating on leaves, stems, and new growth. While it is rarely fatal to mature trees, untreated infections can weaken plant vigor, reduce photosynthesis, and negatively impact overall appearance and health. This disease thrives during periods of warm days, cool nights, and high humidity. Unlike many