Wolf spiders are bigger, thicker spiders that look a little like miniature tarantulas. They do not usually build webs to catch prey, so you will see them running along floors, driveways, and walls. Their bodies are gray or brown with striping or mottled patterns that blend into dirt and grass.

The shock factor is real when a large wolf spider sprints across your living room. While they are not typically aggressive, they can bite if cornered, and their presence often means you have plenty of insects for them to hunt. BRD treatments cut down their food source and seal common entry points so they stay outside where they belong.