Species Spotlight: Chiggers
Chiggers are most active in grassy, overgrown, and wooded areas. These microscopic creatures, also known as redbugs, are tiny mites that can cause significant discomfort during the summer months. File photo by MSU Extension Service/Nathan Gregory.
What’s that itch? Chiggers, also known as redbugs, are tiny mites that can cause significant discomfort during the warmer months in Mississippi.
Despite the myths, chiggers aren’t insects, and they definitely don’t burrow into your skin. These tiny critters are actually the larval stage of a mite called Trombicula alfreddugesi. You won’t see them without magnification—they’re about 1/150th of an inch and bright red. These microscopic creatures are most active in overgrown, grassy, or wooded areas.
Chiggers don’t bite in the usual sense. Instead, they attach to your skin and inject a digestive enzyme that breaks down skin cells. The itching is your body’s reaction to the enzymes.
The good news? You can avoid them with a few simple steps:
Keep your lawn tidy. Mow regularly and clear out brushy areas where chiggers like to hide.
Dress smart. If you’re heading into tall grass or wooded areas, wear long sleeves and long pants; be sure to tuck those pants into your socks. Yes, it’s a fashion crime—but it works.
Use bug spray. DEET-based repellants can be used on the skin, while permethrin-based sprays must only be used on clothing. Always follow the label directions when using these products.
Shower after being outdoors. A good scrub with soap and water within a few hours of being outside can wash away any hangers-on.
Wash your clothes. Toss your clothes straight into the washer and dryer, using the hottest water and heat cycle possible to kill any sneaky hitchhikers.
If you’ve already got the itch, the best thing you can do is not scratch. Scratching can lead to infection and make things worse.
To soothe the itch, you can try:
- over-the-counter anti-itch creams
- oral antihistamines
- cool compresses
And forget the old wives’ tales. Nail polish and bleach won’t help. They’re more likely to irritate your skin than fix the problem.
If you are particularly sensitive to chiggers or have a severe case of bites, consult a physician.
For more information, check out this issue of Bug's Eye View by retired MSU Extension entomologist Blake Layton.
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