Most spiders feed on other insects and if you have spiders in or around your home you may have an insect problem as well. Spiders have eight legs and venomous fangs and are active all year, preferring to live in dark crevices where they can easily trap their prey. Most spider species live about one year.
Spiders are generally solitary predators, coming together only to mate. Females will create an egg sac for her eggs, which they guard carefully. If the female spider dies before her eggs have hatched another female may take over protecting her egg sac.
Spiders are highly territorial and will fight another spider to gain dominance over a space they have claimed as their own. Most spiders will bite animals and humans if they are attacked or trapped.
Entry: Spiders gain entry to your home any way that they can, in search of insects to eat.
Nest Locations: Spiders will seek dark corners or crevices to spin their webs. You’ll find them in basements, up in rafters, under porch chairs, behind shelving and seldom used garden tools and boxes.
Do-it-yourself Effectiveness: Keep your home clean and clear of dusty places where spiders and other insects can hide. Sweep dust and clutter from basements, crawl spaces, porches, sheds, and outdoor spaces that would encourage spiders and insects to gather.
The female Black Widow Spider is a shiny black spider while the male is brown and smaller than the female. Some adult females have a red hourglass shape on the underbelly while others have red dots and some have no marking at all.
There are many species of Wolf Spiders in a range of sizes. Wolf Spiders are brown, with darker markings, hairy bodies, and long legs. With eight eyes, two large eyes in the center with two smaller eyes on top and four smaller eyes below.
There are over 2000 known species of Ground Spiders and many of those can be found in North America. Most are small and brown in color. Some are solid in color and others have darker markings.
There are nearly 700 known species of Funnel Web Spiders, with at least 400 in North America. The more common Funnel Web Spiders found in North America are about 1” long with long legs that enable it to run quickly to prey caught in its web.
The Domestic House Spider is brown to grey in color, with markings on its back, and legs that extend more than an inch beyond its body. It can run very fast when threatened or in pursuit of prey.
There are more than 5000 species of Jumping Spiders known, with over 300 found in North America. The ones we commonly see in our yards and homes are grey to black, with compact bodies and short legs.
Yellow Sac Spiders are small and yellowish in color with two front legs longer than the others. During the day they rest in a protective silk tube they spin around themselves and hunt at night, venturing out in search of other insects as prey, including larger spiders.
The Garden Spider is common in the US. It spins a h3, intricate web in open fields or on buildings where it can securely attach the web. Some webs can be quite large, stretching three feet wide or more.
The Spiny-backed Orb Weaver Spider is a very small, brightly colored garden spider that spins an orb shaped web. This colorful spider has a body of yellow, white or orange, with red spines that point outward.
Tarantulas are the largest spider with a body length of about 1 1/2″ to 2 1/2″, plus long their legs. Their bodies are light to dark brown and have body hair that causes irritation to skin and eyes.