Clover Mites (Byrobia praetiosa) are tiny reddish mites commonly seen on walls, windowsills, and outdoor surfaces. Although they do not bite humans, large numbers can become a nuisance when they enter buildings.
Quick Facts
- Class: Arachnida
- Habitat: Lawns, walls, foundations
- Diet: Grass and plant sap
- Status: Nuisance pest
Identification
Clover mites are extremely small, usually less than 1 millimeter long. They appear reddish-brown and move slowly across surfaces.
They belong to the larger group of mites.
Distribution
Clover mites occur throughout North America and are most noticeable during spring and fall.
Life Cycle
The life cycle includes egg, larva, nymph, and adult stages. Eggs may overwinter in cracks and crevices.
Pest Status
These mites do not bite or damage homes but can become a nuisance when large numbers appear indoors.
Prevention
- Maintain a vegetation-free strip around foundations
- Seal cracks around windows and doors
- Reduce lawn growth directly against buildings
Control
Vacuuming and exterior barrier treatments may help reduce indoor invasions.