The Difference Between Lawn Damage Caused by Pests vs. Disease
Sep 25, 2025
Is your lawn turning brown, patchy, or thin? Many homeowners assume it’s a fertilization problem—but the culprit could be pests, disease, or both. Knowing the difference is essential to restoring your lawn without wasting money on the wrong treatments.
Pest-Related Lawn Damage
- Chinch Bugs: Cause irregular patches of dead grass, often spreading quickly in sunny areas.
- Grubs: Feed on roots, creating spongy turf that pulls up like carpet.
- Mole Crickets: Tunnel underground, uprooting grass and causing rapid decline.
Disease-Related Lawn Damage
- Brown Patch Fungus: Circular patches of dead grass, often in humid weather.
- Dollar Spot: Small, silver-dollar-sized spots that merge into larger areas.
- Rust Fungus: Leaves a powdery orange residue on shoes or lawn equipment.
How to Tell the Difference
- Pest damage usually starts in concentrated areas and worsens rapidly.
- Fungal disease often appears as spreading circles or spots.
- A professional inspection ensures the correct diagnosis.