spider web

Grass Spider Control: Protect Your Home in New Jersey, New York City, Eastern Pennsylvania, Connecticut, and Delaware

Appearance

What Do Grass Spiders Look Like?
Size: Both male and female grass spiders grow no larger than 25/32 of an inch in length.

Color: Grass spiders are typically light brown or tan with dark stripes running down their bodies.

Characteristics: Their funnel-shaped webs distinguish grass spiders from other species. The spiders also have prominent spinnerets beneath their abdomens and four pairs of black eyes that sit at the front of their heads.

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Facts

  • Behavior: Grass spiders, also known as funnel weavers, are ambush predators that hide in funnel-shaped tunnels of webbing waiting for hapless bugs to stumble into their grassy lairs.
  • Habitat: The fast-moving arachnids are found in grassy yards, but may move indoors during the cool autumn months where they startle and disturb homeowners.

Food

What Do Grass Spiders Eat?
As opportunistic ambush predators, grass spiders will eat almost any small insect that comes into contact with their webs.

This includes:

Biology

Life Cycle
After mating, females lay eggs in clustered sacs. Baby grass spiders hatch looking like tiny adults and molt several times as they grow.

Lifespan
The arachnids do not typically live longer than one year.

Detection

  • Webs: Look for funnel-shaped webs in the grass or shrubberies.
  • Skins: Keep an eye out for any molted spider skins in dark, enclosed spaces like basements.
  • Sight: Be alert for adult spiders scuttling along baseboards or walls.

Problems Caused by Grass Spiders

Bites
The arachnids are beneficial predators that reduce populations of nuisance insects, but they can inflict harmful bites when grabbed or poked.

Thankfully, grass spiders are shy and only bite humans as a last resort. In the rare case of a grass spider bite, individuals experience painful swelling and redness.

Signs of Infestation

  • Hiding: Grass spiders are timid creatures not often spotted by humans even when changing seasons drive them indoors.
  • Webs: The best way to determine if grass spiders are present is finding their webs in yards.
  • Population: If a large number of the arachnids are present, a more serious pest infestation may exist since grass spiders are rarely found together unless there is a sufficient food supply.

Prevention Tips

Sanitation
Maintaining a clean house and discouraging the presence of other small insects makes homes less attractive to grass spiders.

Landscaping
Mow lawns frequently to keep the grass short and trim vegetation near external walls so that funnel weavers have nowhere to build their webs.

Tips for Removal from Home

  • Catch & Release: The spiders can be removed from homes by trapping them under a glass, sliding a piece of paper beneath, and then releasing the spider outside.
  • Vacuum: They can also be sucked up with vacuums or swept away with brooms.
  • Call the Pros: If large populations of grass spiders are present, contact pest control professionals for efficient removal.

Learn more about Western’s comprehensive Home Pest Control Plans.

Call for service: (877) 250-3857