Worse Than Bed Bugs?

To many, rats are synonymous with “pest,” but they’ve got their own parasites to deal with, too. One of the worst is the rat mite (Ornithonyssus bacoti). Think bed-bug-level annoyance with the mobility and persistence to match: rat mites reproduce quickly, travel farther than bed bugs, and can survive longer between meals.

What Is a Rat Mite?

Rat mites are tiny, nocturnal parasites that prefer rat blood but will bite humans if their rodent host dies or isn’t nearby. They’re about the size of a period—easy to miss unless you’re looking closely. Unlike bed bugs, rat mites can travel significant distances to find a host and remain viable longer without feeding.

While rats can carry many diseases (and new ones are still being identified in urban populations), there are no confirmed cases of rat mites transmitting disease to humans. That said, they’re the last thing you want in your home, cabin, or campsite.

Rat mites show up anywhere rats do. Areas with higher rodent pressure—farms, wooded edges, and places with abundant waste—are at greater risk.

How Do I Know If I Have Them?

Because they’re so small, rat mites rarely leave obvious traces (unlike bed bugs). Most people notice clusters of itchy red bites—sometimes called rodent mite dermatitis—that appear overnight.

Distinguishing rat mites from bed bugs (or other causes of skin irritation) can be tricky. To “sample” discreetly, use thin strips of double-sided tape near baseboards, along mattress seams, and around suspected entry points. If uncertainty remains, a professional inspection can confirm the source. (We don’t recommend sticky glue boards for rodents due to welfare concerns and non-target risk.)

How Do I Get Rid of Them?

If you have rat mites, there’s almost always a rodent issue nearby. Seal entry points (rooflines, eaves, vents, gaps under doors, utility penetrations), store food securely, and reduce exterior harborage (dense vegetation, debris piles, accessible compost).

The fastest way to end a rat-mite problem is to remove the rats that sustain them. A quick-kill, non-toxic option is the Goodnature A24.

Why the A24 Works Here

• Automatic, quick-kill: A spring-loaded striker delivers an instant kill and self-resets for the next strike.
• Toxin-free: Safe around pets and wildlife; no secondary poisoning risk.
• Low maintenance: Weatherproof housing; lures last months; optional Digital Strike Counter tracks activity for proof of performance.

Mount the trap along active runways or near food/harborage. In areas with natural scavengers, remains are typically removed; the counter confirms results either way. For prevention, the A24 Home Trapping Kit helps keep local rodent pressure low—cutting off the mite problem before it starts.

Bottom line: address the rodents and the mites go with them. Pair entry-point sealing and sanitation with an automatic, toxin-free trapping setup, and you’ll reclaim your space quickly—and keep it that way.