Clover Mite

Scientific Name: Bryobia praetiosa

Order & Family: Order: Trombidiformes; Family: Tetranychidae

Size: Very small; approximately 0.75 mm (roughly the size of a pinhead).

Clover Mite

Natural Habitat

Typically found outdoors on heavily fertilized lawns, clover, and other grasses. They often move indoors during spring and autumn when outdoor temperatures fluctuate.

Diet & Feeding

Herbivorous; they feed on the sap of more than 200 different plant species, showing a preference for clover and lawn grasses.

Behavior Patterns

They are most active in cooler weather (spring and fall). They congregate in massive numbers on the sunny, warm sides of buildings before attempting to migrate indoors through cracks and crevices.

Risks & Benefits

Risks: They are a nuisance pest indoors because they leave stubborn red stains if crushed on walls, curtains, or upholstery. Benefits: They do not bite humans or pets, nor do they transmit diseases or damage structural wood.

Identified on: 3/1/2026