
What are the Largest Spider Species Found in Ontario?
In the vast wilderness of Ontario, the thriving ecosystem hosts a variety of spiders. Although the thought of these creatures might send a shiver down your spine, they play an essential role in controlling our environment's pest population. Let's discuss some of the largest ones you might come across in your area:- Dolomedes Tenebrosus (Dark Fishing Spider): These are among the largest, with females growing up to 26mm. They feature a distinct pattern on their legs and abdomen, which allows them to camouflage themselves in their preferred habitat near water bodies. Despite their intimidating size, they pose no significant harm to humans.
- Araneus Diadematus (Cross Orbweaver): Not as large as the Dark Fishing Spider, but the Cross Orbweaver is still sizable, with females growing up to 20mm. These types are recognized by their unique cross-shaped marking on their abdomen. Though their size and appearance might be alarming, they are harmless to humans.
- Hogna Aspersa (Forest Wolf Spider): Identified by their characteristic body markings, females of this species can be as large as 18mm. They are ground-dwelling hunters that do not build webs. While their bites can cause temporary discomfort, they are generally not considered dangerous to humans.
Are Larger Spiders in Ontario Dangerous?
We are often asked if the larger spiders owners find lurking in their Ontario homes are a cause for concern. The truth is that while all can bite if threatened, most are harmless to humans. The following points outline why larger ones in particular, are not as dangerous as they may seem:- Non-Venomous: The vast majority of larger species, such as the Huntsman or orb-weaving, are not venomous to humans. They are more interested in catching flies and other small insects in their webs.
- Fear Factor: Although larger ones can appear intimidating due to their size, it's important to remember that this is mostly psychological. The ones we most often encounter in Ontario aren't equipped with the means to pose a serious threat.
- Beneficial Presence: Rather than being a threat, larger spiders can actually be beneficial. They're a natural form of pest control, capturing and eating smaller, potentially harmful pests in your home.
What are the Common Signs of an Infestation in a Home?
Often, it's the smallest signs that clue us into a potential infestation in the home. As experienced pest control experts, we can confidently tell you that these creatures leave distinct signs that allow us to initiate effective spider control and preventative measures. You should look out for the following:- Webs: Most spiders create webs for catching prey. Identification can be complicated because webs can vary from large and ornate structures to small, unnoticeable ones. An unusual amount of them around your home can be a sign of an infestation.
- Egg Sacs: These are usually small, round, white or cream-coloured capsules attached to the webs. Many can produce hundreds of eggs in one sac, which can lead to a fast-growing infestation if not treated promptly.
- Seeing Multiple Spiders: Not all are web-building types. Some are hunters and tend to roam around. If you're regularly encountering them in your home, especially during daylight hours, this could be a signal of a problem.
- Frequent Droppings: Their droppings look like small, dark, specks and are usually found underneath a web. Numerous droppings may indicate a significant presence of spiders in your home.
Why Shouldn't You Attempt DIY Spider Control and Prevention?
While the idea of tackling an infestation on your own may seem enticing for some, the reality is that it's usually not advisable. Consider the following reasons:- Risk of Misidentification - Different spiders require different extermination methods. By trying to handle the situation, there is a possibility that you could misidentify the species, leading to ineffective treatment.
- Potential Hazard - Handling insects and the tools used for extermination can often be harmful. You could potentially expose yourself and your family to dangers if proper safety precautions aren't taken.
- Temporary Solution - Without the knowledge of a professional exterminator, your DIY efforts might only provide a temporary fix while leaving the root of the problem unresolved.
- Insufficient Knowledge - Effective extermination isn't about killing the spiders. It's important to deal with potential breeding and nesting areas, something most people aren't privy to.
What are the Effective Methods for Spider Control and Prevention?

- Regular Cleaning: Regularly vacuum high-traffic areas and hidden corners where they are likely to spin their webs.
- Seal Entry Points: Repairing cracks, holes, and gaps in doors and windows prevents them from entering your home.
- Light Control: They are attracted to light as it draws their prey, controlling light emission around your home can minimize attraction.
- Use of Natural Repellents: Certain essential oils like peppermint and lavender act as natural deterrents.
- Professional Exterminator: Hiring a professional exterminator is optimal for comprehensive control and prevention. They carry the necessary knowledge, tools, and techniques to effectively handle these pesky invaders.
What Benefits Can Homeowners Expect from Hiring a Professional Pest Control Service?
Choosing to work in partnership with a professional pest control service, such as ours, bestows multiple benefits to homeowners. Here, we dive into some of the key advantages that you can expect:- Effective Control: We are well-versed in dealing with various kinds of spiders, ensuring an effective solution for your problem.
- Prevention: Our services aren't merely concerned with addressing current issues. We also strive to prevent future invasions of these unwanted eight-legged guests.
- Safety: Utilizing a professional service reduces the risk of mishandling toxic pest control substances. Our team is trained to use these materials properly and safely, prioritizing your household's well-being.
- Convenience: A DIY approach can be troublesome and time-consuming. With us, you get an exterminator who handles everything, allowing you to invest your time in other important areas of your life.
- Cost-Effective: Over-the-counter solutions might seem cheaper to start, but over time, re-infestations can be more expensive. Our professional solution, from the onset, offers a long-term economic approach.