Wolf spiders are a common type of spider found in many parts of the world, including the United States. These hairy, brown to gray spiders can range in size from 1/2 inch to 2 inches long and are known for their unique behavior of carrying their egg sacs with them and allowing their young spiderlings to ride on their back until partially grown. Though wolf spiders are not poisonous, they may bite if mishandled or trapped next to the skin, causing initial pain, redness, and potential localized swelling.
To effectively get rid of wolf spiders in and around your home, there are several methods you can employ. One simple way is to catch a wolf spider that has ventured indoors using a container and then release it outside. Additionally, reducing clutter in areas like closets, garages, basements, and attics will make the spaces less attractive to these arachnids. Furthermore, eliminating their outdoor habitats by moving firewood, stacked items, and debris away from your home’s foundation can help prevent their migration indoors.
Understanding Wolf Spiders
Physical Characteristics
Wolf spiders are typically:
- Size: 1/2 inch to 2 inches long
- Color: Brown to gray with various markings or lines
- Body: Hairy
Notable features include:
- Eyes: They have excellent eyesight with 8 eyes arranged in 3 rows
- Legs: Powerful legs for fast movement
Habitat and Behavior
Wolf spiders can be found in various environments such as:
- Forests
- Grasslands
- Beaches
- Gardens
Key behaviors include:
- Hunting: They actively hunt their prey instead of using webs
- Maternal care: Mothers carry their egg sacs with them, and young spiderlings ride on their mother’s back until partially grown
Venom and Bites
Wolf spider bites may cause:
- Initial pain
- Redness
- Localized swelling
However, it’s important to note that:
- Bites are usually a result of mishandling or accidental contact
- Symptoms generally subside within 24 hours
- No serious medical consequences have been noted for their bites
Identifying Infestations
Common Areas
Identifying wolf spider infestations begins with knowing the common areas they inhabit. Wolf spiders mostly enter houses near ground level and are frequently found in:
- Basements: Dark, damp areas provide ideal conditions for wolf spiders.
- Crawlspaces: These tight spaces offer plenty of hiding spots.
- Breezeways: Connecting areas between rooms or buildings can serve as entrances for spiders.
Signs to Look For
To accurately identify a wolf spider infestation, look for the following signs:
- Holes: Wolf spiders dig burrows or use existing holes as their homes.
- Webs: Unlike other spiders, wolf spiders don’t spin webs for catching prey; nevertheless, they leave behind web trails as they move around.
- Glue traps: Placing glue traps near suspected infestation areas will help confirm their presence if caught.
It’s essential to inspect furniture, closets, and other areas where pests might hide or where they have easy access to food sources. Regularly checking these areas can help you identify wolf spider infestations early and prevent them from becoming a significant issue in your home.
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Preventing Wolf Spider Entry
Sealing Cracks and Holes
One way to prevent wolf spiders from entering your home is to inspect the exterior and seal any cracks or holes. This is especially important around doors and windows, as well as near the foundation. Some simple but effective options for sealing these entry points include:
- Using caulk or sealant to fill small gaps
- Applying weather stripping around doors and windows
For example, if you notice black or brown recluse spiders in your region, sealing entry points can be an important preventive measure.
Using Window Screens
Another essential step in keeping wolf spiders out of your house is installing and maintaining window screens. Here are some benefits of using screens:
- Prevent spiders and other insects from entering through windows
- Allow for ventilation while keeping pests out
A comparison of different window screen materials is provided below:
| Material | Pros | Cons |
|---|---|---|
| Aluminum | Durable, more resistant to corrosion | May be more expensive |
| Fiberglass | Cheaper, flexible, and easy to install | Less durable than aluminum |
Keep in mind that installing tight-fitting door sweeps and using sodium vapor bulbs for exterior lighting can also help reduce spider entry by minimizing hiding places and sources of food.
Eliminating Wolf Spiders
Removing Food Source
Wolf spiders, being part of the Lycosidae family, primarily hunt and prey on insects. To get rid of them, start by eliminating their food source:
- Keep home clean and free of pests
- Use pest control methods for insects they feed on
- Reduce other insects that serve as food
Non-Toxic Methods
To tackle these spiders without harming them or the environment, here are some non-toxic methods:
- Scent: Use peppermint oil as a deterrent, as they dislike this scent
- Physical removal: Use a vacuum cleaner or broom to remove spiders, webs, and egg sacs
| Non-Toxic Method | Pros | Cons |
|---|---|---|
| Scent | Environment-friendly, repels spiders | Requires regular application |
| Physical removal | Effective, immediate results | Time-consuming, manual effort |
Using Pesticides
If the infestation is serious, consider using pesticides or calling an exterminator:
- Boric acid: A common pesticide that is toxic to spiders
- Exterminator: Professional pest control service
However, remember that wolf spiders can be beneficial, as they help control other pests. So, consider the pros and cons before deciding on a pesticide treatment:
- Pros: Quick, effective
- Cons: Expensive, harmful to beneficial species
In conclusion, eliminating wolf spiders can be achieved in multiple ways, including addressing their food source, using non-toxic methods, and resorting to pesticides as a last resort.
Wolf Spiders vs Other Spiders
Brown Recluse
- Appearance: Brown recluse spiders are small, typically 1/4 to 3/4 inch long, and have a distinct violin-shaped marking on their cephalothorax1.
- Bites: Unlike wolf spiders, brown recluse spider bites can be quite dangerous and may require medical attention2.
Example: A distinguishing feature of brown recluse spiders is their six eyes arranged in pairs, whereas wolf spiders have eight eyes arranged in three rows3.
Black Widow
- Color: Black widow spiders are glossy black with a distinctive red hourglass marking on their abdomen4.
- Poisonous: Black widows are more venomous than wolf spiders, and their bites may require immediate medical attention5.
Comparison Table between Wolf Spiders, Brown Recluse, and Black Widow
| Feature | Wolf Spiders | Brown Recluse | Black Widow |
|---|---|---|---|
| Size | 1/2 – 2 inches6 | 1/4 – 3/4 inch1 | 1.5 inches7 |
| Color | Brown – Gray6 | Light – Dark brown1 | Black4 |
| Venom | Not dangerous6 | Dangerous2 | Highly venomous5 |
| Distinct Markings | Various6 | Violin-shaped1 | Red hourglass4 |
Creating an Unfavorable Environment
Decluttering and Cleaning
Removing debris and clutter can discourage wolf spiders from settling in your home. They prefer undisturbed areas such as:
- Closets
- Garages
- Basements
- Attics
By reducing these accumulations, you make those spaces less appealing to spiders. Keep outside areas clean by:
- Moving firewood
- Stacked items
- Debris away from the foundation
Additionally, regularly vacuuming spider webs and removing them from corners helps eliminate spiders around homes and buildings.
Using Light and Scents
Optimizing your outdoor lights can help deter wolf spiders. Modify your exterior lighting setup like this:
- Replace standard bulbs with sodium vapor lights
- Position lights away from windows and doors
Sodium vapor lights are less attractive to insects and, in turn, spiders.
Example of lighting comparison:
| Lighting Type | Attraction to Insects |
|---|---|
| Standard Bulbs | High |
| Sodium Vapor Lights | Low |
Sealing holes and gaps with caulk prevents spiders from finding hiding places. Tight-fitting door sweeps and screens on windows are also helpful in keeping spiders out.
Although some scents like peppermint and lavender are believed to repel spiders, their effectiveness is not guaranteed. However, they can make your home smell fresh and pleasant.
Beneficial Aspects of Wolf Spiders
Wolf spiders are generally considered harmless to humans. They can, in fact, be beneficial since they prey on insects like flies and other pests.
- Harmless: Wolf spiders seldom bite humans and pose no significant health threat.
- Beneficial: They help control insect populations, acting as a natural form of pest control.
These spiders are adept at hunting and rely on their excellent speed and vision for catching prey. Wolf spiders are part of a large family of species, with many types existing in various environments worldwide. They differ in terms of size, color, and markings, making them a diverse group.
Changing your outdoor lights to sodium vapor bulbs can be helpful in attracting fewer insects, which in turn reduces the number of wolf spiders in the area. By minimizing the spider’s primary food source, you can discourage their presence.
Overall, wolf spiders play a crucial role in the ecosystem, offering a valuable means of defense against insects that are considered pests. Remembering their positive contributions can help to better tolerate their presence.
Protecting Your Home and Garden
Regular Inspections
Start by examining your home’s outside walls and perimeter. Look for cracks and crevices that may serve as hiding spots for wolf spiders. Check the following areas for spider signs:
- Burrows in soil or under debris
- Webs in low-lying vegetation
- Egg sacs on female wolf spiders
Here’s a comparison of two common wolf spider hiding places:
| Habitat | Characteristics |
|---|---|
| Fields | Rich in insects, tall grasses, and leaves |
| Burrows | Dark, protected, and located in soil or under rocks or debris |
Continued Maintenance
Establish a barrier to prevent wolf spiders from entering your home. Take these steps to maintain your home and garden:
- Seal exterior cracks and crevices.
- Install tight-fitting door sweeps and window screens.
- Keep your home and garden clutter-free.
- Inspect and vacuum indoor areas regularly.
Don’t forget about your pets! Some precautionary measures for your pets include:
- Regular grooming
- Cleaning pet bedding
- Monitoring outdoor play areas for spider presence
These maintenance practices help reduce the spiderlings’ habitat and the chances of female wolf spiders finding a suitable place for their egg sacs. By carrying out regular inspections and continued maintenance, you can help keep wolf spiders at bay, protecting your home and garden in the United States and beyond.
Footnotes
8 Comments. Leave new
How very poignant
Adrift afloat
a lonely little spider boat
vigilance, mortality
a dying spider wants to be
an albatross
on stormy seas
the haunting rift
of progeny
Hard to believe I can make out his eyes in the photo, these point and shoot cameras are great nowadays. Thanks for your assistance.
This does appear yo be the Carolina Wolf Spider which is the largest spider in the U.S., & it seems they all appear to have small differences, I was told by an Entomologist that the eyes are what really describe a Wolf Spider, 2 We live in New England, & have found an unbelievable amount of spiders in our home, outside as well but we live in a heavily wooded area rich in bugs so this is normal, but the scream factor was very high as I don’t like being surprised at 1am in the bathroom! This past year was the “Spider Year”, & found huge Wolf Spiders with babies on their back, dragging egg sacks out of the drain, even a large female that was just over 2″, mostly legs. So we caught her, & decided we’d send her into an Entomologist but a male showed up about 3 nights later, he was very active & about 1″ so we sent him in, alive inside a pill bottle. We were told that the only time we really should worry is when we have many spiders, & toddlers that like to play with them as they can be rough & are at greater risk of being bit when they are. We actually kept the female, & learned she was only afraid of us but when presented with a bug or spider, she ate the spider first every time which is a good thing as there are worse spiders & bugs out there! We actually became somewhat fond of her, & was sad when she died about 6-8 wks later, & felt a little better about them, we’ve always been clean but now we make sure we vacuum everything, move things around in the basement when doing so, & use cleaning products where we don’t want them, no need for toxic bug sprays or exterminators, spiders are extremely sensitive to any chemicals! I’ve seen & heard the Carolina Wolf Spider is more aggressive, & can punch a painful bite but then again, you haven’t been bitten yet, right? As long as they’re outside, & not in, I would follow the advice I was given, it seems to work, & they eat far worse things! Best wishes! :))
Thank you for your extensive comment. We have a slight correction regarding the Carolina Wolf Spider being the largest spider in the U.S. We disagree with that statement. Several spiders that we believe would be considered larger include Tarantulas in the southwest, the Golden Silk Spider in the southeast, the imported Huntsman Spider found in the south and certain Fishing Spiders or Dock Spiders in the northeast that carry the egg sac in the chelicerae or jaws instead of dragging it behind on a silken thread the way the female Wolf Spider transports her egg sac.
I’ve definitely had funnel web spiders living with us in Maryland. That being said, we moved from Florida so maybe someone hitched a ride. We lived in Maryland for 9 years and I had seen them many times over the years– always outside the basement and near our warm and cozy townhome.
Could this be Tigrosa georgicola? This species gets fairly large, and is generally quite dark overall, with a clear yellow median stripe on the cephalothorax. Hogna carolinensis looks too light colored to me, and it also often has orange chelicerae.
This actually isn’t a wolf spider but a type of spider commonly mistaken for a wold spider. This is a picture of a dock spider or fishing spider, which beleave it or not are common in most of nova scotia. do a search of nova scotia spiders on bing and there’s some great information on these guys.
We actually got a confirmation from Eric Eaton that this is a Thin Legged Wolf Spider in the genus Pardosa. We have numerous images of Fishing Spiders or Dock Spiders on our site.