Spider Control & Brown Recluse Guide
Spiders in St. Louis
Missouri ranks among the top states for brown recluse populations. Learn to identify dangerous vs harmless spiders.
Missouri’s Two Dangerous Spiders
Missouri has one of the highest brown recluse populations in the country. Here are the two medically significant spiders to know on sight — if you spot either, give us a call.
Brown Recluse Loxosceles reclusa
Black Widow Latrodectus
Big but Harmless · Wolf Spider (Lycosidae)
The big, fast, hairy brown spider people panic over is almost always a harmless wolf spider. They don’t build webs — they hunt on the ground — and wander indoors in fall looking for warmth. A bite is no worse than a bee sting. Unlike the recluse and widow, wolf spiders aren’t medically dangerous — but lots of them usually means there are other insects around for them to eat.
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Related reading from our blog
Fall Pest Prevention in St. Louis — the exclusion checklist that keeps brown recluse and other fall pests out, starting in August.