Effective Chinch Bug Treatments for a Healthy, Green Lawn

Chinch bugs are small surface-feeding lawn insects that damage grass by piercing blades and extracting moisture and nutrients. As they feed, they also inject toxins that disrupt the plant’s ability to transport water — causing turf to yellow, brown, and eventually die.

They’re most active during hot, dry weather when lawns are already under stress.

Adult chinch bugs are black with white wings folded over their backs, creating a distinct “X” pattern. Immature chinch bugs (nymphs) are smaller and appear reddish-orange with a white band across their bodies.

Because of their size and speed, they’re easiest to spot when you part the grass at the edge of damaged areas.

Chinch bug activity typically peaks from late June through August, especially during extended heat waves and drought conditions.

Hot, sunny lawns — particularly along sidewalks, driveways, and south-facing exposures — are the most vulnerable.

Chinch bug damage appears as irregular brown or tan patches that resemble drought stress. Unlike grub damage, the grass usually remains rooted in the soil but appears dry, brittle, and weakened.

Damage often spreads outward from a central point as populations grow.

Yes. Severe chinch bug infestations can cause permanent turf loss if left untreated. Feeding damage prevents grass from absorbing water and nutrients, leading to dehydration and plant death.