06/17/2026
Bermuda Lawn Brown Spot Care.
Cause #2 Pest Infestations
White grubs, beetle larvae, feed on grass roots, causing irregular brown patches that are easily pulled up.
Chinch bugs cause irregular patches of yellowing or wilted grass, especially in sunny areas. Their presence can be confirmed by floating them to the surface.
Armyworms, destructive caterpillars, feed on grass blades, leaving chewed or notched appearances, sometimes with a “windowpane” effect. They can decimate large areas quickly.
Solution #2 Pests
For grubs, apply appropriate insecticides in late summer or early fall to disrupt their life cycle. Chinch bugs and armyworms may require specific insecticide applications, often best performed in early morning or late evening when pests are most active. Maintaining proper mowing height can also deter some insect infestations.