Mold Mite

Scientific Name: Tyrophagus putrescentiae

Order & Family: Order: Sarcoptiformes, Family: Acaridae

Size: 0.3 to 0.45 mm

Mold Mite

Natural Habitat

Damp environments with high humidity where mold or fungi grow, including kitchens, bathrooms, and stored food products.

Diet & Feeding

Primarily feeds on mold, fungi, and high-protein/fatty dried foods like cheese, seeds, and grain-based products.

Behavior Patterns

They exhibit a rapid life cycle under warm, humid conditions. Notable for their ability to reproduce quickly and move in large numbers, often appearing as a fine white or grayish dust on surfaces.

Risks & Benefits

They do not bite or sting but can cause skin irritation (grocer's itch) or respiratory allergies in some individuals. They are primarily nuisance pests that indicate a moisture or mold problem.

Identified on: 4/30/2026