Old Crape Myrtle with Scale: Systemic Treatment Best

10–12 year old crape myrtle in Fort Worth blooms poorly, yellows early, and has tiny brown specks on bark that rub off—scale insects.

Treatment

Tree too tall for foliar spray. Use Bayer Advanced Tree & Shrub Insect Control (imidacloprid) as soil drench in spring. Roots move it to canopy where scale feeds.

Fall Option

Horticultural oil after leaf drop if you can reach all branches. Thorough coverage essential.

Product Link

Bayer Tree & Shrub Insect Control