Spider Mite

Scientific Name: Tetranychus urticae (Two-spotted spider mite) or similar species within Tetranychidae

Order & Family: Acariformes, Tetranychidae

Size: Typically very small, less than 0.5 mm (0.02 inches) in length, often appearing as tiny moving dots.

Spider Mite

Natural Habitat

Spider mites are typically found on the undersides of leaves of a wide range of plants, including ornamental plants, fruit trees, vegetables, and field crops. They thrive in hot, dry conditions and can be found both indoors and outdoors.

Diet & Feeding

Spider mites are plant feeders, piercing plant cells with their mouthparts and sucking out the chlorophyll. They feed on a wide variety of plants, causing stippling, discoloration, and eventual wilting or death of the leaves.

Behavior Patterns

Spider mites are known for spinning fine silk webs, especially when populations are high. They reproduce rapidly, especially in warm, dry conditions. They tend to cluster on the undersides of leaves and can be spread by wind, irrigation, or infested plants.

Risks & Benefits

Spider mites are significant agricultural pests, causing considerable damage and economic losses to crops and ornamental plants. They can reduce plant vigor, yield, and aesthetic value. There are no direct benefits to humans, and they are generally considered a pest.

Identified on: 9/2/2025