Crepe myrtles are one of the most popular ornamental trees in North Carolina, beloved for their beautiful blooms and resilient nature. Although they are considered a relatively low-maintenance and easy-to-grow tree, they are still vulnerable to tree diseases. Knowing what’s normal with crepe myrtles and what is cause for alarm can help you ensure yours enjoys a long, healthy life. Let’s take a look at a few common tree diseases that crepe myrtles are vulnerable to and how to spot when trouble is brewing for your trees.
- Powdery Mildew – This is a fungal issue, but it is fortunately considered easily manageable and is rarely fatal for trees if it is caught and addressed early. As its name suggests, powdery mildew appears as white or gray powder on leaves and stems.
- Leaf Spot – A blanket term for a broader range of tree diseases, leaf spot often occurs after periods of high humidity or heavy moisture. The dark or reddish-brown leaf spots may escalate to early leaf drop, but it is considered a manageable seasonal disease that proper trimming and airflow can help address and prevent.
- Sooty Mold – This sooty black residue found on leaves isn’t a disease itself, but rather the result of sap-feeding insects like aphids. Treating the insect problem typically resolves the mold and prevents further stress on the tree.
- Cankers, Dieback, and Excessive Leaf Loss – These symptoms often indicate an advanced fungal infection or stress-related disease. Tree diseases can spread rapidly in our warm, humid climate, so routine tree inspections are key to catching and stopping damage early.
One thing that causes alarm in many crepe myrtle owners is peeling bark; however, mild peeling is perfectly normal for a healthy crepe myrtle. If you are concerned about excessive peeling, contact our team for an assessment.
By understanding what is normal for a crepe myrtle and what is not, you can respond with confidence when you notice changes with your crepe myrtles.