Black Locust Leaf Drop and Beetles: Get Insect ID First

A black locust has rapid yellowing and leaf drop, black spots under leaves, and tiny tan/gray flying beetles. The expert stresses: get the insects identified before treating. Collect leaves with bugs in a plastic bag and take to a garden center or county extension office. Proper ID ensures the right control—organic or otherwise—and avoids harming beneficials.

Why ID Matters

• Beetles may be pests or harmless.
• Wrong insecticide wastes money and risks environment.
• Extension offices provide free, local expertise.

Don’t guess—identify.