Crepe myrtle trees are beloved for their vibrant flowers, beautiful bark, and graceful stature, making them a favorite in many landscapes. However, like all plants, they can encounter several issues, ranging from pest infestations to diseases and environmental stresses. Bonilla Tree Services is dedicated to helping you identify common crepe myrtle issues and providing effective solutions to ensure your trees remain healthy and beautiful.

Common Issues with Crepe Myrtle Trees

Powdery Mildew

• Identification: A white or gray powdery fungus covers the leaves, stems, and sometimes flowers. It typically appears in humid conditions with poor air circulation.

• Solutions: Increase air circulation by properly spacing trees and pruning. Apply fungicides as necessary, focusing on prevention during susceptible periods.

Crepe Myrtle Bark Scale (CMBS)

• Identification: Small, white to gray, waxy insects cluster on branches and under the bark, excreting a sticky substance (honeydew) that leads to sooty mold growth.

• Solutions: Apply horticultural oil or systemic insecticides to control the scale. Encourage natural predators and maintain tree health to improve resistance.

Sooty Mold

• Identification: Black, soot-like fungal growth on leaves and stems, usually following an infestation of pests like aphids or bark scale that produce honeydew.

• Solutions: Address the underlying pest issue with appropriate insecticides or biological controls. The mold itself can be washed off with a strong water jet or soap solution.

Aphids

• Identification: Small, green to black insects clustering on new growth and undersides of leaves, excreting honeydew.

• Solutions: Use insecticidal soaps, neem oil, or systemic insecticides for severe infestations. Encourage or introduce natural predators like ladybugs.

Root Rot

• Identification: Yellowing and wilting of leaves, stunted growth, and eventual death, caused by overwatering or poor drainage.

• Solutions: Ensure proper drainage at planting time and adjust watering practices. In severe cases, infected trees may need to be removed to prevent spread.

Leaf Spot Diseases

• Identification: Spots of various colors and sizes on leaves, often leading to premature leaf drop.

• Solutions: Fungicide treatments can help, but improving air circulation, sanitation (removing fallen leaves), and avoiding overhead watering are key preventive measures.

General Care Tips for Crepe Myrtle Trees

• Pruning: Proper pruning enhances air circulation and light penetration, reducing the risk of fungal diseases. Avoid heavy topping, which can stress the tree and lead to weak growth.

• Watering: Water deeply but infrequently to encourage deep root growth. Avoid overhead watering to reduce leaf wetness and fungal disease risk.

• Fertilization: Apply a balanced fertilizer in early spring to support healthy growth without promoting excessive new growth susceptible to pests and diseases.

• Mulching: Apply a layer of organic mulch around the base of the tree to retain moisture, regulate soil temperature, and reduce weed competition.

Conclusion

By identifying common issues early and implementing effective solutions, you can maintain the health and beauty of your crepe myrtle trees. Bonilla Tree Services is here to assist with expert advice, diagnosis, and treatment options tailored to your specific needs. Whether you're dealing with pests, diseases, or cultural issues, our team is ready to help you enjoy the full beauty of your crepe myrtles for years to come. Contact us for a consultation or for more information on maintaining healthy crepe myrtle trees.