Tiny Invaders, Major Damage: Protect Your Lawn from Surface-Feeding Insects
What Are Surface-Feeding Insects?
Common Surface-Feeding Insects to Watch For
- Chinch Bugs – Tiny (1/8 inch long) but destructive, chinch bugs suck moisture from grass blades, creating yellowing patches that spread quickly.
- Sod Webworms – Moth larvae, these pests chew through grass blades, leaving behind brown, thinning areas. These pests can grow up to 3/4 of an inch long.
- Cutworms – Also moth larvae, these nocturnal caterpillars that sever grass at the base, causing dead spots to appear almost overnight. These pests can grow up to 1 1/2 inches long.
How to Spot an Infestation
Surface-feeding insect damage is often mistaken for drought stress, but key signs include:
- Irregular brown patches that persist despite watering
- Chewed or clipped grass blades
- Thinning turf that worsens over time
When Are These Pests Most Active?
In the northwest suburbs of Chicago, surface-feeding insects peak in mid-to-late summer when hot, dry conditions put lawns under stress.
- Mid-to-late summer: Sod webworms and cutworms are most active, creating drought-like damage.
- July through early fall: Chinch bugs thrive in hot weather, feeding aggressively until temperatures cool.
Prevention & Treatment
The best defense against surface-feeding insects is proactive treatment. At Weiss Lawn Care, our Surface Feeding Insect Control treatment is an add-on to our Grub Control application, delivering comprehensive protection:
✅ Together they shield your lawn from chinch bugs, sod webworms, and cutworms on the surface and grubs underneath
✅ Preserves grass blade health for better photosynthesis
✅ Prevents grubs from feeding on roots, ensuring your lawn absorbs water and nutrients efficiently
Don’t Let Tiny Invaders Take Over
Even small pests can cause major damage if left untreated. If you notice signs of these tiny invaders, don’t wait—contact your Grass Guru today! Together, we’ll keep your lawn healthy and pest-free all season long.