Chiggers are actually the bright red, microscopic larval stage of mites, and are closely related to ticks and spiders. Chiggers are parasitic to warm-blooded animals and humans.

Chiggers are active from spring through fall, but are most common in early summer in grassy and weedy areas, fallen leaves, and damp soil.

Chiggers crawl on vegetation and then attach to small mammals and people. They wander around on their host's skin before attaching at a pore or hair follicle, usually in an area where clothes fit tightly. After they attach themselves, chiggers inject an enzyme that dissolves the skin. They then feed on the fluid from the ruptured skin cells. This injected enzyme causes a red welt and intense itching.

Prevention is the best remedy for chigger bites. Use personal insect repellent on exposed skin and clothing. Avoid sitting directly on the ground. A hot, soapy shower shortly after being exposed will remove most chiggers. Treat bites with a product that seals the skin from contact with the air and contains antihistamines. To minimize chiggers outdoors, mow tall grass and weeds, remove leaf debris, and spray with an insecticide labeled for treatment of chiggers.