Identify, Control, & Prevent Crape Myrtle Bark Scale
Beloved for their vibrant blooms and ornamental beauty, crape myrtles make a gorgeous addition to any Vienna area landscape. However, the growing threat of crape myrtle bark scale (CMBS) could jeopardize their health. This invasive pest spreads all across the U.S., leaving trees vulnerable and disfigured.
Today, the landscaping professionals at Wheat’s Landscape discuss how to identify, treat, and prevent crape myrtle bark scale from affecting the trees on your property.
What Is Crape Myrtle Bark Scale?
Crape myrtle bark scale is an invasive insect pest first discovered in the U.S. in 2004. Primarily affecting crape myrtle trees, this intrusive pest feeds on sap and produces a sticky residue known as honeydew, which fosters the growth of black, sooty mold that can disfigure the tree and block sunlight from its leaves.
While CMBS isn’t usually fatal to trees, it can weaken them to the point of reduced growth and blooming, making them more susceptible to other pests and diseases that have the potential to kill them. Prompt treatment is important for protecting your crape myrtles and preserving their health and beauty.
Identifying Crape Myrtle Bark Scale
Early detection of CMBS is the key to controlling an infestation. Here are the signs to watch out for:
- White or gray waxy clusters: These small, cottony-looking scales often appear on the tree’s bark, branches, or twigs.
- Black sooty mold: This mold grows on the honeydew secreted by the scales, covering leaves and bark in a dark, powdery layer.
- Reduced blooms: Infested trees may produce fewer or smaller flowers.
- Sticky residue: Honeydew is a telltale sign of CMBS. This sticky substance can drip onto the ground or nearby surfaces.
- Ant activity: Ants are often attracted to the honeydew, so a sudden increase in ants around your tree may indicate CMBS.
How To Control & Treat Crape Myrtle Bark Scale
Once you’ve identified an infestation, taking immediate action is essential. Here are some steps you can take to control and treat CMBS:
- Manual removal: Use a soft-bristled brush and soapy water to scrub scales off the bark.
- Insecticidal treatments: Apply systemic insecticides containing imidacloprid or dinotefuran. The tree absorbs these pesticides and targets the scales feeding on its sap.
- Horticultural oil: Applying horticultural oil can smother scales, particularly during their crawler stage.
- Professional tree care: A landscaping expert can assess the severity of the infestation and recommend tailored solutions.
Crape Myrtle Bark Scale Prevention Tips
Preventing CMBS is often easier than treating it. The tips below can help you avoid this issue altogether and keep your crape myrtles in a healthy condition:
- Plant in full sun: CMBS tends to thrive in shaded areas. Keeping your trees in direct sunlight can make them less vulnerable.
- Inspect plants before purchasing: Avoid bringing home infested plants by thoroughly inspecting them at the nursery.
- Maintain plant health: Proper pruning, fertilizing, and watering strengthen your tree’s defenses against pests.
- Monitor regularly: Watch for early signs of infestation, especially during the growing season.
Schedule Landscaping Services With Wheat’s Landscape
Protecting your crape myrtles from bark scale requires vigilance and proper care. If you’re dealing with an infestation or want to ensure your trees remain healthy, Wheat’s can help. Our professional landscaping services include tree and shrub care, pest management, and more. With a deep understanding of the local environment and the unique risks that Virginia families face when keeping their crape myrtles in good condition, we are uniquely capable of developing a care plan that protects your trees for the long term.
Contact us today to schedule your consultation and keep your crape myrtles thriving for years to come!
