Illustrated identification guide — PestControlBasics.com
🔍 Identification
0.5-1mm; visible as tiny reddish or whitish specks on skin or surfaces; cannot jump or fly. Found on skin producing itchy red welts with no visible insect. Often appear suddenly after rodent control efforts (trapped/killed rodents force mites to seek new hosts). Also appear when rodents die in wall voids.
🧬 Biology & Behavior
Rodent mites live on rats and mice and feed on their blood. They move off the host quickly when the host dies or abandons the nest. Once on surfaces, they seek any warm-blooded host — including humans. Unlike scabies mites, they don't burrow; they bite and leave. Cannot complete lifecycle on humans — infestations are self-limiting once the rodent source is eliminated.
⚠️ Damage & Health Risk
Multiple small, intensely itchy red welts on exposed skin; welts may appear at night when mites are most active; distinguishable from bed bugs by the absence of any visible insect and no linear bite patterns.
🔧 DIY Treatment
Find and remove the dead rodent or rodent nest — this eliminates the mite source. Apply bifenthrin or permethrin spray to infested areas (floors, baseboards, walls near rodent activity). Wash all bedding on hot cycle. Vacuum thoroughly. Mites die within 1-3 weeks without a rodent host.
👷 When to Call a Pro
If rodent nest is in an inaccessible wall void, pest control professional can assist with locating and treating the area.