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Local spider information

Spider control in New Jersey

Learn what to look for around your property, explore your city, and ask about an inspection or a quote.

Spiders in New Jersey: what to know

Around New Jersey

Conditions vary across the state. Choose your city below, then describe what’s happening around your home or business.

What to note

Where you see spiders, how long it has been going on, and anything you’ve already tried are the most useful details to mention.

A useful next step

Ask about an inspection, what treatment would involve, and whether follow-up visits are included. You don’t need to identify the problem yourself before getting in touch.

Local research

Spiders in New Jersey: what the public record shows

Before you compare quotes, it helps to know which spiders actually live in New Jersey, when they are busiest, and what the state figures look like. Everything below links to the agency or university page it came from.

In North America, only the widow spiders in the genus Latrodectus and the recluse spiders, in the genus Loxosceles are dangerous to humans
Which spiders are actually dangerous

Rutgers Cooperative Extension's fact sheet for New Jersey homeowners narrows the field to two genera.

Rutgers New Jersey Agricultural Experiment Station Cooperative Extension
Most Loxosceles are restricted to the southwest, from southern California to southern Texas
Where recluse spiders actually live

New Jersey sits far outside the core recluse range.

Rutgers New Jersey Agricultural Experiment Station Cooperative Extension
Yellow sac spiders are believed to cause more spider bites than any other spider in the United States
The spider that really does bite people

Their bites 'rarely result in more than localized redness and burning sensation,' lasting hours to at most two days.

Rutgers New Jersey Agricultural Experiment Station Cooperative Extension

Spider species recorded in New Jersey

  • Southern black widow (Latrodectus mactans) — 'Found in the southeastern region and has been found as far north as Ohio and as far west as Texas' (UF/IFAS); confirmed in Pennsylvania (Penn State) and one of two dangerous sp…
  • Yellow sac spider (Cheiracanthium spp.) — 'Can be seen running on walls and ceilings at night'; bites happen when 'trapped against a person's skin in clothing or bedding' (UC IPM). One of two spiders of medical signific…

When spiders are busiest in New Jersey

Yellow sac spiderlings overwinter and mature in May-June; they enter structures through faulty screens, loose-fitting doors, vents, utility lines and plants brought inside (Rutgers NJAES).

Rutgers NJAES: 'Spiders, including widow spiders and recluse spiders, are generally timid creatures. In fact, spiders seldom bite people.' Bites 'usually result from spiders being accidentally trapped against the skin or being handled.' Black widows shelter under stones, firewood piles, decks, hollow stumps and rodent burrows, and indoors in garages, basements and crawl spaces.

Rules that apply in New Jersey

For context, nationally

  • Throughout North America, but are most common in the southern and western United States — Black widow distribution. CDC/NIOSH
  • In the midwestern and southern United States — Brown recluse distribution. CDC/NIOSH

Sources: Rutgers New Jersey Agricultural Experiment Station Cooperative Extension; CDC/NIOSH; EENY 560: Southern Black Widow, Latrodectus mactans; Pest Notes: Spiders (PN 7442). Figures are quoted as the source prints them. How we check our sources

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