Spiders are a year-round issue in both residential and commercial buildings. The two most common spiders are the Missouri Wolf Spider and the Brown Recluse. The later has a poisonous bite, but both are common throughout the state and can easily enter your home.
Both spiders are commonly found outside; however there are noticeable differences in their habitat preferences. The Wolf spider prefer ground-based habitats such as gravel or sand bars, low vegetation or leaf liter. They also will burrow or tunnel into natural cavities beneath flat rocks or logs and prefer being near water. The Brown Recluse generally prefers woodpiles, sheds, closets, garages, cellars and other places that are dry and essentially undisturbed. Note that when they are dwelling within a residence, Brown Recluse spiders favor cardboard but have also been found in shoes, dressers, bed sheets of infrequently used beds, piled clothes, inside work gloves and behind baseboards, pictures and other furniture that are near sources of warmth.
Adult Missouri Wolf spiders and Brown Recluse spiders live on average 1 to 2 years.
Behavior & Bites
Wolf spiders typically eat insects, run smoothly over the ground and often hunt at night. They are typically solitary, but if they bight a human it is harmless.
Brown Recluse spiders have extremely poisonous bites, but the bites are rarely aggressive and aren’t common. These spiders typically only bite when pressed against the skin, such as when tangled in clothing or bedding, but the concern with a Brown Recluse bite is that it’s not usually felt immediately. This spider’s bite bars a potentially deadly hemotoxic venom, and while most bites are minor with no necrosis, some can cause more severe symptoms.
- Determine the type of spider.
- Conduct a full property inspection.
- Apply EPA-registered materials outside your foundation to protect your home during the warmer months and reduce spiders along with their food source (other insects).
- Safely apply material inside all levels of the home and the garage.
Year-Round Spider Protection
Investing in our Home Protection Plan ensures your property and home stay spider free all year. Read more about our Home Protection Plan.
Missouri Wolf Spider
1/4 inch to 1 inch
Usually Gray, Brown, Black or Tan
Brown or Black body markings, especially stripes
Brown Recluse Spider
6 to 20mm
Cream colored, dark brown or blackish gray
Markings on topside include black line in the shape of a violin. The violin neck points towards rear of spider.
Click here for a helpful info-graphic and tips on Brown Recluse spiders.
Click here for a helpful blog on 2014 and 2015 spider problems in the United States.