Pest Away Tips

7 Ways to Control and Prevent Hobo Spider Infestations

Hobo spiders are a species of brown spiders commonly found in the Pacific Northwest region of the United States. They are known for their funnel-shaped webs and are often mistaken for other spider species.

Understanding more about hobo spiders, their identification, behavior, and control will help people protect themselves from this spider’s bite. Hobo Spider Identification, Behavior and Control

Physical Characteristics of Hobo Spiders

Hobo spiders, also known as Eratigena agrestis, are brown spiders with a leg span of 1 to 1.5 inches. They have eight eyes and a unique pattern of stripes that run down their legs.

Finding one of these spiders can be challenging as they often hide in dark, moist places. Hobo spiders are known for their funnel-shaped webs, which are often found in shrubs, grasses, and other similar habitats.

Identification Challenges

Identifying a hobo spider can be challenging. Often mistaken for other spider species, it takes a trained eye and microscope to identify a hobo spider.

If you find a spider with a distinctive stripe pattern on its legs, there is a good chance it is a hobo spider. However, if you are unsure, it is best to get expert advice.

Habitats and Distribution

Hobo spiders are most commonly found in the Pacific Northwest region of the United States. They prefer moist, dark environments such as shrubs and grasses.

Their range has been as far east as Montana and as far south as California.

Lifespan and Reproduction

Hobo spiders have a lifespan of up to three years. Females are known to lay multiple egg sacs with up to 100 eggs in each sac.

These spiders create their funnel-shaped webs to use as a nursery, where the young spiders can grow. The male hobo spiders often seek out the female’s web to mate, and then live for only a few months after mating.

Control Measures

The most effective way to control hobo spiders is to eliminate their habitats and food sources. Cleaning up debris around the outside of the house, removing piles of wood, and trimming back shrubs can limit the spider’s preferred living spaces.

Simple measures, such as using caulk to seal cracks and gaps, can prevent spiders from entering your home. Sticky traps can be helpful in trapping spiders before they enter your living space.

Preventing Bites

Hobo spider bites are not typically fatal, but they can cause pain and localized reactions such as redness or swelling. Those with pre-existing medical conditions or compromised immune systems may have worse reactions.

If bitten, it is important to clean the area and apply a cold compress. Symptoms may last for several days, so keeping the wound clean and applying wound care products can help minimize the discomfort.


Hobo spiders are a species of brown spider commonly found in the Pacific Northwest. Their unique funnel-shaped webs and distinctive stripe pattern on their legs make them easy to identify.

Identifying and understanding hobo spiders’ habitats, behaviors, and control methods can help prevent them from becoming a problem. With the use of effective control measures, preventative actions, and proper wound care, hobo spiders can be managed effectively.

3) Hobo Spider Venom and Bite

Venomous or Not

Hobo spiders belong to the Tegenaria family, which includes other spider species that are known to develop severe necrosis or tissue death. In the case of hobo spiders, their bite is venomous, but its harmfulness is often less damaging than bees or wasps.

A hobo spider bite harms only if the spider feels threatened or agitated enough to bite. In general, hobo spider venom is not poisonous to humans, but the impact of their bites differs from individual to individual.

Impact of Bites on Humans

Hobo spider bites can cause swelling, redness, and itchiness. These symptoms may appear immediately after the bite or may take a few hours to develop.

Moreover, the venom within a hobo spider’s bite can cause necrosis or tissue death, which can lead to a lack of sensation in the area and blisters surrounding the bites. It is essential to seek medical attention for the appropriate treatment, as severe infections can arise from improperly treated wounds.

Aggression and Attack Behavior

Hobo spiders are known to be aggressive and bite when disturbed or stressed. Just like other spiders, they are unlikely to attack humans without feeling threatened or provoked.

However, it is essential to be aware of the environment where hobo spiders are likely to reside and take appropriate measures to avoid aggravating them.

Toxicity Levels

The venom of hobo spiders is less toxic than that of a bee or a wasp, and some people may not have any reaction. According to several studies, the toxicity of male hobos spider bites is significantly less severe than that of female hobo spiders.

Even so, anyone who experiences hobo spider bites should seek medical care, as the bites can cause secondary infections and other medical problems.

4) Prevention and Treatment

Attractiveness and Entry Behavior

Hobo spiders are commonly found in warm, dry places, such as closets and attics. They create their webs near the ground or in wall corners where there are likely to be other insects and bugs.

Piles of debris or wood, clutter, and uncleaned areas make an excellent breeding environment for hobo spiders that attract other insects preys for them to hunt down.

Prevention Methods

To prevent hobo spiders from entering your home, you should seal all cracks and gaps in walls, windows, and door frames, especially around the foundation of your home. Repairing existing screens on windows and doors also prevents unwanted entry points from outside.

Eliminating debris, woodpiles, and clutter from garages and attics also minimizes the available places for their habitat and food sources for them.

Elimination Techniques

Sticky traps and vacuuming are effective ways of getting rid of hobo spiders. Place sticky traps in areas where there has been activity, such as wall corners, behind furniture, and under beds.

Vacuuming frequently can also get rid of spiders and their webs. Be sure to discard the vacuum bag immediately after use.

Diatomaceous Earth

Diatomaceous earth is another effective method of fighting against hobo spiders. Diatomaceous earth is a natural powder consisting of the fossilized remains of marine phytoplankton, which is a non-toxic and environmentally friendly product.

When sprinkled around cracks, corners, and other spider-infested areas, the powder acts as a desiccant and kills off the spider by dehydration eventually.

Effective Sprays and Insecticides

Sprays and insecticides are a more aggressive option for killing hobo spiders, but they are also more effective. Ortho Home Defense Indoor and Perimeter Spray and Terro Spider Killer Spray are examples of products that can be used directly on hobo spiders.

These products are specifically formulated to kill spiders and their eggs and prevent reinfestation, and can be purchased at your local hardware store.


While hobo spiders are venomous and can cause skin infection and tissue death, they are not poisonous and are unlikely to pose a significant health risk to humans. By taking preventative measures such as sealing cracks, eliminating potential habitats, and using natural and chemical methods for control, the chances of coming in contact with hobo spiders can be significantly reduced.

5) Natural and

Home Remedies

Natural Methods

One of the simplest ways to prevent hobo spiders is through lawn maintenance. Clear out debris and trim shrubs so that there are no hiding places for hobo spiders.

Woodpiles also need to be removed from the yard to eliminate potential habitats for the spiders. Using diatomaceous earth is another natural and non-toxic way to eliminate hobo spiders without harming the environment.

Sprinkling diatomaceous earth powder around your yard can kill hobo spiders by eliminating the moisture from their exoskeletons. As a result, they die from dehydration.

Home Remedies

Another way of eliminating hobo spiders is through the use of home remedies such as citrus vinegar sprays. These remedies are natural and help to keep spiders away from your home.

To make this citrus vinegar spray, mix equal parts of water and white vinegar and add a few drops of lemon or orange essential oil. Spray the solution around entrances, walls, and baseboards, paying extra attention to areas where hobo spiders are commonly found.

6) Extermination

Professional Extermination

In some cases, hobo spider infestations require professional help. A professional exterminator can provide a more comprehensive and permanent solution for getting rid of hobo spiders and preventing future infestations.

Exterminators have the knowledge and expertise to identify the hobo spider species, locate their habitats, and develop an effective treatment plan. They also have access to specialized equipment and safe chemicals that cannot be purchased by the general public to exterminate hobo spiders in areas that are inaccessible.

Calling Exterminators

If you notice an increase in the number of hobo spiders in and around your home, it is advisable to call an experienced exterminator. They will visit your property to identify the source of the hobo spider infestation and implement a customized treatment plan based on your specific situation.

Professional Expertise

Professional exterminators can offer expert advice on preventative measures to take to keep hobo spiders from returning in the future. They can provide options and methods for sealing potential entry points, such as repairing holes or damaged screens, in addition to spray treatments against other insects that spiders feed on in order to prevent future reinfestation.


Hobo spiders are a venomous species that can cause harm to humans if they feel threatened. Prevention is key when it comes to controlling hobo spiders from infesting your home.

Natural or conventional methods can be used to control hobo spider infestations, such as natural lawn maintenance, diatomaceous earth, and citrus vinegar sprays. Extermination by a professional exterminator is always an option.

They have the expertise to identify the type of spider inside your home, the necessary equipment, and knowledge to exterminate it successfully. Staying vigilant and taking the necessary preventative actions can help to minimize the occurrence of hobo spider infestations.



To summarize, hobo spiders are a common species of brown spiders found in the Pacific Northwest region of the United States. These spiders have distinguishing features, such as funnel-shaped webs and stripes on their legs.

They are not poisonous, but their bites can cause tissue death, skin infections, and other medical problems.

Understanding their behavior and habitats is crucial when it comes to managing and preventing hobo spider infestations.

It is essential to take preventative measures such as sealing cracks, eliminating woodpiles, cleaning up debris, and maintaining proper lawn care to reduce the potential habitats, food sources and hiding places for hobo spiders.

There are several methods for controlling hobo spider infestations, including natural methods like diatomaceous earth, and home remedies such as citrus vinegar sprays.

Professional extermination is always an option, especially for severe or recurring infestations.

In conclusion, hobo spiders are a species that requires vigilance and preventative measures to prevent them from becoming problematic.

By taking steps to eliminate their habitats, food sources, and hiding places, individuals can minimize their chances of coming into contact with hobo spiders. If an infestation arises, utilizing control and extermination methods can help to manage and prevent future occurrences.

In conclusion, understanding and managing hobo spider populations requires knowledge of their physical characteristics, habitats, and behaviors. Being aware of their potential habitats, food sources, and hiding places, and taking preventative measures, such as natural methods and home remedies, can significantly reduce the risk of hobo spider infestations.

However, in some cases, the use of professional extermination services may be necessary. While hobo spider bites can cause tissue death and other medical issues, they are not typically life-threatening.

By following these prevention and control methods, individuals can minimize their chances of an encounter with the hobo spider, making their living space safer and more enjoyable.

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