Blog How to Identify and Manage Common Tree Diseases Feb 07, 2026

Caring for the trees on your property is essential not only for their health but also for maintaining the aesthetic value and safety of your landscape. While trees are robust living organisms, they are not immune to diseases. Identifying and managing common tree diseases can prevent minor issues from turning into severe problems. At Donnie's Tree Services, we believe in empowering our customers with the knowledge to maintain their trees' vibrancy and longevity.

Understanding the types of tree diseases commonly found in your area is the first step. Diseases in trees often mirror those in humans, signaled by symptoms such as discoloration, the presence of fungi, wilting, or strange growths. From fungal infections to bacterial blights, each disease requires a unique approach for diagnosis and management.

One common disease to look out for is Anthracnose. This fungal disease can cause dark, sunken lesions on leaves, stems, flowers, and fruit. If you notice premature leaf drop or discolored areas on leaves, your tree might be affected. To manage Anthracnose, it's crucial to remove and dispose of infected leaves and twigs properly. Regular pruning and thinning out of excessive foliage can also improve air circulation, minimizing the impact of this disease.

Cankers can also pose a serious threat. Recognizable by the sunken, dead spots on the tree's bark, canker diseases can impede nutrient flow. Over time, affected limbs or sections of the tree might die. To tackle cankers, prune the infected branches during the dormant season when the disease is less active. This helps to contain the spread and facilitate healthy growth.

Another disease to be vigilant about is Powdery Mildew. This fungal disease manifests as a white or gray powdery coating on leaves and stems. Powdery Mildew thrives in warm, dry climates and can severely affect the photosynthesis capabilities of the tree. To control this disease, apply fungicidal sprays that are specifically labeled for Powdery Mildew control. Additionally, ensuring that your trees have adequate spacing can improve air movement and reduce humidity levels that facilitate the growth of this mildew.

Root rot is a more insidious problem since it's not immediately visible but can be deadly if left unattended. Often caused by poor drainage or overwatering, root rot results in decayed, mushy roots that lead to weakened and declining trees. To prevent root rot, ensure proper soil drainage and avoid excessive irrigation. For a solution, consider replanting affected trees into areas with better drainage if the problem persists.

At Donnie's Tree Services, our goal is to help you maintain healthy, resilient trees. Implementing regular tree health assessments and maintenance routines can make a significant difference in early disease detection and management. Simple measures such as cleaning up fallen debris, monitoring soil conditions, and consulting tree professionals for pruning can enhance tree health exponentially.

As you navigate tree care, always remember that recognizing early signs of disease is crucial. A proactive approach, combined with professional guidance when needed, will ensure that your trees remain lush, beautiful, and safe for years to come. Our team is always ready to offer expert advice and services tailored to meet your specific tree care needs. With the right practices, maintaining the health of your trees can be straightforward and rewarding.