Are The Spiders I Find In My Ontario, CA Home Dangerous?


October 15, 2021

A lot of people are scared or unsettled by spiders for many valid reasons. For one, you can walk into their gummy webs because they’re often translucent. Second, they usually have a ton of creepy eyes. Last but not least, they have fangs loaded with venom. If you are bitten, you’re bound to experience pain. You may have to go to the emergency room too.

While several spider species aren’t significantly harmful, enough is a threat to be alarmed. Black widows and brown recluses are two of the most medically dangerous subgroups in North America. Unfortunately, both are common in Ontario. It would be wise to learn more about these local bugs, so you can prepare accordingly. Earlybird Extermination can help with intervention. 

a brown recluse spider crawling in grass and wood

What Spiders Are in Ontario? What Are the Dangers?

To reiterate, black widows and brown recluses are present in the region. The 0.12 of inch-long bodies of the black widows are particularly glossy. Males can be as big as 0.39 of an inch. Females may hit 0.51 of an inch; you can tell them from their counterparts by the red hourglass mark on their stomachs. These pests congregate in wood, high grass, and organic material. Abrasive weather and a food shortage will send these outdoor arachnids into your domicile. Basements, garages, closets, and other dark spots with little traffic are where black widows usually hide. Bites can be detrimental because neurotoxins are in their venom. An overall pest issue is hinted with these bugs, as they consume other critters.

Brown recluses are in fact brown, if not tan. They are a sizable 0.50 of an inch long. A violin shape adorns their abdominal area. People often mistake them for another spider. Behaviorally, they are similar to black widows. They target fellow pests for meals, prefer to settle in natural debris, and favor quiet and dim interior spaces. You can anticipate seeing them in attics, sheds, crawlspaces, cellars, and cabinets. These bugs can get away from you on their long and thin legs though; they run pretty fast. Mass procreation happens quickly too. Major symptoms of their bites include fever, nausea, and lesions.

Further key details about these spiders are:

  • All bites require immediate medical attention
  • They are nocturnal
  • Sightings are a sign of infestation
  • They’ll huddle around floor corners, firewood, and furniture

How Can You Prevent Ontario Spiders?

To keep spiders of all kinds away, you’ll have to put additional effort into your cleaning regimen. You’ll also have to look at your exterior maintenance. Here’s what you’ll have to do specifically:

  • Close up gaps in foundations, doors, and windows.
  • Make sure that screens and sweeps are in excellent condition.  
  • Fix moisture breakdowns and leaks as soon as possible.
  • Regulate warmth by using an air conditioner or dehumidifier.
  • Use canisters with airtight lids for food and trash storage.
  • Sweep up webs you find.
  • Sweep, vacuum, and dust on a routine basis.
  • Trim grass and greenery often. Discard debris from the yard.
  • Distance plants and wood from the property by two feet.
  • Inspect logs and storage items before bringing them indoors.
  • Contact Earlybird Extermination if you have pests that spiders munch on.

What Can Earlybird Extermination Do About Ontario Spiders?

If you’re dealing with a spider infestation, a commercial pesticide is not the answer. Such items are expensive and will only eliminate a handful of bugs. On top of that, they might be noxious. For a safe and far-reaching solution, contact us at Earlybird Extermination. We have industrial-grade treatments that are species-specific. They won’t put humans, pets, or vegetation at risk. Our expert technicians will have dusts, traps, yard options, and more available. Call today for a free estimate!

Tags: home pest control | spiders in ontario | preventing spiders |

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