How to get rid of clover mites in Iowa

If you're seeing thousands of tiny red specks crawling across south-facing siding, windowsills, or curtains, you're almost certainly dealing with clover mites — not bed bugs, not chiggers.

Every spring and fall we get the same call from Iowa homeowners: 'There are thousands of tiny red bugs on my windowsill — what are they?' Nine times out of ten, the answer is clover mites. They're harmless to people and pets, but they're a real nuisance and they can stain walls, drapes, and carpet a rusty red if you crush them.

What clover mites look like

Clover mites are about the size of a pinhead, bright red to reddish-brown, with eight legs (they're arachnids, not insects). The front pair of legs is unusually long and often mistaken for antennae. They don't bite, don't carry disease, and don't feed on blood or wood — they feed on grass, clover, and other lawn plants.

Why they're inside your Iowa home

Clover mites move indoors when outdoor conditions get extreme — usually during the first warm days of spring or the first cool snaps of fall. Iowa lawns that are heavily fertilized, well-watered, and pushed right up against the foundation are textbook clover mite habitat. South and west walls warm up first, which is why you see them on those windowsills before anywhere else.

How to get rid of them (the right way)

• Vacuum, don't crush. Crushing them leaves red stains. A vacuum with a hose attachment removes them cleanly.
• Wipe surfaces with soapy water afterward to pick up any stragglers.
• Pull mulch, grass, and groundcover back 18–24 inches from the foundation. A dry gravel or stone strip is the single best long-term deterrent.
• Seal gaps around windows, door sweeps, and where siding meets the foundation. Mites get in through cracks smaller than 1/16 of an inch.
• Apply a residual perimeter treatment to the bottom 2–3 feet of exterior wall and the first few feet of soil/turf around the foundation.

When to call a pro

If you're vacuuming mites every day or seeing them in upstairs windows (a sign they're getting in through soffits or the roof line), it's time for a professional perimeter and exterior treatment. We treat clover mites across Central and Southeast Iowa from late March through May and again from mid-September through October.