Short answer: If your Gonzalez lawn — especially centipede — has spreading yellow-to-dead patches that shrug off water and fertilizer, the culprit may be ground pearls. These are tiny scale insects that live underground and suck the juices out of grass roots. They're one of the most stubborn lawn pests in the Southeast because their protective cyst stage resists insecticides, so the real strategy is keeping the turf strong enough to outgrow the damage.
Ground pearls are small root-feeding scale insects that form a hard, pearl-like cyst around themselves in the soil. They feed on the roots of warm-season grasses and strongly prefer centipedegrass, and are often associated with acidic soils. Damage shows up as grass that yellows, browns, and dies — worst during the hot, dry stretches of summer — and weeds tend to move into the thinned areas. Because they're underground and tiny, most homeowners never see the pest, only the dying patches.
Here's the honest part: no insecticide reliably controls the ground pearl's cyst stage, so there's no spray that simply erases them. What genuinely helps is keeping the lawn as healthy as possible — proper irrigation, correct fertility, and good soil pH — so the turf can mask and outgrow the feeding damage. Since they favor stressed, acidic-soil centipede, a program that manages soil pH and overall lawn health is your best long-term defense. Correct diagnosis matters too, since the symptoms mimic drought and disease.
Why isn't there a spray that kills ground pearls? Their cyst stage is highly resistant to insecticides, so no chemical reliably controls them. Managing lawn health to outgrow the damage is the proven approach.
Which lawns are most at risk? Centipedegrass is the clear favorite, especially on acidic soils. Other warm-season grasses can be affected, but centipede lawns see it most.
How do I know it's ground pearls and not drought? The symptoms look alike, which is why diagnosis matters. A professional can check the soil for the tell-tale cysts and rule out disease or drought stress.
Mysterious dead spots in your Gonzalez lawn? EnSec can diagnose the cause and build a lawn-health plan to fight back. Call 850-474-4000 or request a visit.
EnSec Pest & Lawn is a family-owned pest control, termite, and lawn care company founded in 1997, with offices in Cantonment and Panama City Beach, Florida, and Mobile and Foley, Alabama. Our team includes Certified Pest Control Operators in Florida and Alabama and an Associate Certified Entomologist, and we are members of the National Pest Management Association with an A+ rating from the Better Business Bureau (License #2004227). This article was written and reviewed by the EnSec team and last updated September 2026.
EnSec Pest & Lawn has been protecting Gulf Coast homes since 1997. Get a free estimate today.
