Dogwoods are small trees that are popular additions to many landscapes in the eastern and southeastern United States. These beauties burst into pink or white bloom in spring and boast bright red berries in the fall. However, these trees are susceptible to many diseases and problems if not properly taken care of. Although drought and under watering are more common issues, over watering can also contribute to poor appearance and disease in dogwoods.
Root rot is caused when too much water pushes the air out of the soil, resulting in root decay. The signs of root rot are wilting leaves and branches and leaf scorch, a condition marked by the browning of the edges and tips of a plant's leaves.
Changing Leaf Color
Another symptom of over-watered dogwood trees is the changing leaf color. Leaves may turn yellow or light green to indicate stress from too much moisture.
If your dogwoods have a white substance on the leaves and buds, powdery mildew may be the culprit. Powdery mildew is a fungal disease that thrives in wet, humid conditions. Curling, deformed leaves are another sign of powdery mildew. Watering from overhead and even rainfall contributes to powdery mildew. When watering, try not to get water on the leaves and water early in the day so the moisture can dry before nightfall.
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