Purple-Smashed Bugs on Crepe Myrtle: Scale Insects

Black Winged Insects That Stain Purple

Crepe myrtle trunks in Dallas host grouped black insects that smear purple when crushed—classic scale insects (likely crape myrtle bark scale, Acanthococcus lagerstroemiae).

Control

Soil drench with Bayer Advanced Tree & Shrub Insecticide (imidacloprid) per label. Systemic action kills feeding scale within a week; protects 8+ months. Dead bodies remain but stop spreading.

Why It Matters

Heavy scale reduces flowering, weakens trees, and excretes honeydew leading to sooty mold. Early treatment preserves tree health and bloom quality.