Black Widow Spider Nests: Where to Look and What to Do (2024)

Picture this: You’re out in your garden, tending to your flowers and shrubs, when suddenly, you spot a black widow spider scurrying across the ground. You know that these venomous spiders are not to be taken lightly, and you’re left wondering if there are more lurking nearby. This is where knowledge about black widow spider nests comes into play. In this informative article, we will discuss the characteristics of black widow spider nests, where they can be found, and what to do if you come across one. With the information in this article, you’ll be better equipped to protect yourself and your loved ones from these dangerous spiders.

What is a black widow spider nest?

Black Widow Spider Nests: Where to Look and What to Do (1)
Have you ever wondered what exactly a black widow spider nest is and what it looks like? These nests are where the black widow spiders lay their eggs and raise their spiderlings. Understanding the characteristics of these nests is important for identifying and eliminating infestations. In this section, we will discuss the details about black widow spider nests and what you need to know to protect yourself and your home from these venomous arachnids. If you want to learn more about black widow spider habits and behavior, check out our article on juvenile black widow spider habits.

What are the characteristics of the black widow spider nest?

Black widow spider nests can be quite difficult to locate as they are often concealed in hard-to-reach places. However, there are certain characteristics that can help identify a black widow spider nest. Here are a few of them:

CHARACTERISTICDESCRIPTION
SizeBlack widow spider nests are small and compact, typically no more than a few inches in diameter.
LocationBlack widow spiders prefer to build their nests in dark, secluded spots. These can include sheds (link), outdoor furniture (link), firewood piles (link), and landscaping (link).
WebbingBlack widow spider nests are often covered in dense, messy webs that can make them easier to spot. However, the spider may also build its nest without using webbing, making them more difficult to locate.
ShapeBlack widow spider nests are typically round in shape and may have a small entrance hole through which the spider can enter and exit.
ColorThe nest of a black widow spider is usually a light-colored mass with a distinctive black or brown stripe running through the center.

If you notice any of these characteristics in a particular area, there is a good chance that black widow spiders have built their nests nearby. However, keep in mind that not all black widow spider nests will exhibit all of these characteristics. It is important to exercise caution in areas where black widow spiders are known to live (link).

Where do black widow spiders build their nests?

Black Widow Spider Nests: Where to Look and What to Do (2)
For anyone worried that black widow spiders might have invaded their home or property, it’s important to know where these arachnids like to build their nests. Interestingly, black widow spiders are adaptable and can build nests in many different locations, both indoors and out. Let’s take a closer look at black widow spider nesting preferences and where you should be most cautious. Don’t miss the article about black widow spiders’ hiding spots to learn more about these elusive spiders.

Outdoor black widow spider nests

Outdoor black widow spider nests are commonly found in hot, dry areas such as woodpiles, rock formations, and under the eaves of houses. These spiders prefer to build their nests in secluded areas that are undisturbed, making it challenging to spot them.

If you suspect there may be an outdoor black widow spider nest near your home, it is important to take precautionary measures to ensure your safety. Identify the spider webs around your house to see whether it’s an outdoor black widow or not. You can learn more on how to spot black widow spider webs.

It is essential not to disturb the nest and avoid contact with the spiders as they are venomous and can cause painful and dangerous bites. Wear protective clothing such as gloves and long sleeves when inspecting potential nesting areas and use proper tools and equipment if attempting to destroy the nest.

Below is a table showcasing common outdoor locations where black widow spider nests can be found:

LocationDescription
WoodpilesBlack widows love to build their webs in woodpiles that are dry and undisturbed. They can also hide under the wood.
Rock formationsBlack widows can often be found in holes or crevices of rocks, especially if they are in a sunny area.
Under eaves of housesBlack widows can also build their nests under the eaves of houses, where it is undisturbed and dry.

If you find a black widow spider nest in your outdoor area, it is best to call a professional exterminator to safely remove the nest. Keep your surroundings free of debris that could be attractive to the spiders, and ensure that all potential entry points to your home are adequately sealed as black widow spiders love damp places. You can read more about outdoor black widows on outdoor black widows.

Indoor black widow spider nests

Black widow spiders are most commonly found in outdoor spaces, but indoor black widow spider nests have also been known to occur. These nests can be found in a variety of areas within a home, including garages, basem*nts, and crawl spaces.

Here are some common areas where indoor black widow spider nests can be found:

  • Cluttered areas: Black widow spiders are attracted to cluttered areas where they can hide and build their webs undisturbed. Make sure to regularly clean and organize cluttered spaces, such as basem*nts and garages, to reduce the risk of a black widow infestation.
  • Inaccessible areas: Black widow spiders prefer to build their nests in areas that are difficult to reach, such as small cracks and crevices. Inspect your home regularly for small openings where black widows may be able to build their nests.
  • Damp areas: Black widow spiders are known to love damp places. Be sure to inspect any areas of your home that may have excess moisture, such as basem*nts or crawl spaces. If you notice any areas that are excessively damp, take steps to dry them out.
  • Neglected areas: Black widow spiders are more likely to build their nests in areas that are not frequently disturbed. Check areas of your home that are not often used or neglected, such as storage spaces, for signs of black widow spider nests.

If you suspect that you have an indoor black widow spider infestation, it is important to take immediate action to address the issue. Remember to take appropriate safety measures when dealing with black widow spiders, such as wearing protective clothing and using proper tools and equipment.

Pro Tip: If you discover an indoor black widow spider nest, it is recommended that you contact a professional exterminator rather than trying to remove it yourself. The venom of the black widow spider can be very dangerous, and attempting to remove the nest on your own could result in a serious injury.

What should you do if you find a black widow spider nest?

Encountering a black widow spider nest can be a frightening experience. These venomous spiders are known for their painful bites and their tendency to build nests in areas with little human traffic. However, it’s important to know how to handle the situation if you do come across a nest. In this section, we’ll go over some important steps to take if you find a black widow spider nest. But before we dive into that, let’s briefly review what black widow spider nests look like and where they are typically found.

Don’t touch the nest

When you spot a black widow spider nest, you might be tempted to remove it yourself. However, it is crucial not to touch the nest. Black widow spiders are venomous, and any contact with their nest may lead to a dangerous spider bite. Instead, follow these precautions to stay safe:

Do this:Avoid this:
Stay away from the nest: Black widow nests can be identified by a messy web-like pattern. If you find a nest, step away immediately.Touching the nest: Contact with the nest, spider or egg sac can provoke a bite.
Observe from a distance: You can still gather information about the type of spider and its nest from a safe distance.Getting too close: Black widow spiders, especially female ones, are known to defend their nests aggressively. Steer clear of their sight.

Remember, black widow spider bites can be lethal, particularly for children or adults with weaker immune systems. So do not put yourself or your family at risk by coming in contact with their nest. Instead, seek professional help to remove the nest safely. If you are interested to know where else black widow spiders can be found, check our article on their preference for damp locations.

Wear protective clothing

It is crucial to wear proper protective clothing when dealing with black widow spider nests. Black widows are venomous spiders that can cause harm to humans, so you need to take precautions before attempting to remove their nests. Below is a table showing the protective clothing you should wear to stay safe:

Clothing ItemPurpose
Long-sleeved shirt and pantsCompletely cover your skin to prevent spider bites
Thick glovesProtect hands from spider bites and any chemicals used to remove the nest
Boots or closed-toe shoesProtect feet from spider bites and any chemicals used to remove the nest
Face maskPrevent inhaling any chemicals used to remove the nest

Remember, black widow spiders can be dangerous, so it is critical to wear the right protective clothing to prevent any bites or exposure to the chemicals used to remove their nests. Also, make sure to wash your protective clothing after use to ensure that any spider venom or chemicals trapped in the clothing don’t come into contact with your skin.

Use proper tools and equipment

When dealing with a black widow spider nest, it is important to use the proper tools and equipment to ensure your safety. Here are some of the tools and equipment you might need:

Tool/EquipmentDescription
GlovesThick gloves, preferably made of leather, to protect your hands from spider bites.
Protective clothingWear long-sleeved shirts and pants to cover your skin, and closed-toe shoes to protect your feet.
FlashlightUse a flashlight to search for nests and spiders in dark areas.
Dust maskA dust mask will protect your respiratory system from inhaling spider webs, dust, and debris.
Insecticide sprayUse an insecticide spray specifically designed for black widow spiders. Follow the instructions carefully.
Vacuum cleanerUse a vacuum cleaner with a wand attachment to remove spider webs, eggs, and spiders from hard-to-reach areas.
SealantUse a sealant to close gaps and cracks where spiders can enter your home.

Remember to always be cautious and wear the appropriate protective gear when dealing with black widow spider nests. If you are unsure about how to proceed, it is always better to call a professional exterminator for assistance.

Call a professional exterminator

When discovering a black widow spider nest, it is crucial to take the necessary precautions to prevent any harm and properly eradicate the infestation. While attempting to remove the nest alone is possible, it is highly recommended to seek professional assistance. A professional exterminator is experienced and trained to handle dangerous insects like black widow spiders.

Here are some reasons why you should call a professional exterminator:

Benefits of Hiring a Professional Exterminator
Expertise and Knowledge
A professional exterminator has the necessary knowledge and expertise about different pests, including black widow spiders. They understand their habits, lifecycle, and behavior, which makes it easier to locate and exterminate their nests successfully. Their knowledge also allows them to use the safest and most effective strategies when dealing with these spiders.
Proper Equipment and Tools
Professional exterminators have access to specialized equipment and tools that are required to deal with black widow spider nests safely. They possess protective gear like gloves, masks, and suits to prevent injuries caused by spider venom or bites. Additionally, they use specific chemicals to eradicate these spiders without compromising the health of the environment or humans.
Guaranteed Results
If you hire a professional exterminator, you can be assured of successful results. They will eradicate the spiders’ nests and take measures to prevent their return. Most reputable extermination services offer guarantees to their clients for the work they do.
Cost-Effective
It may seem counterintuitive, but hiring a professional exterminator is cost-effective compared to DIY methods. They have the skills and tools to handle the situation quickly and successfully, preventing further infestation down the line. Trying to remove a black widow spider nest yourself may lead to further expenses and damage.

A professional exterminator is the best option when it comes to dealing with black widow spider nests. They have the knowledge, expertise, and equipment to eradicate the infestation safely, efficiently, and effectively.

Destroying the nest

Once you have identified the black widow spider nest, it is crucial to destroy it to prevent further infestation. However, destroying the nest requires proper tools and protective gear to avoid bites and potential harm. Here are some steps to take when destroying a black widow spider nest:

Step 1:Put on protective clothing before approaching the nest. Wear gloves, long-sleeved shirts, pants, and closed-toe shoes.
Step 2:Use a long-handled tool such as a broomstick or rake to knock down the nest from a safe distance. Do not do this with your bare hands.
Step 3:Once the nest is on the ground, use a shovel or other tool to scoop it up and place it in a plastic bag. Seal the bag tightly.
Step 4:Dispose of the bag immediately in an outdoor trash receptacle. Do not keep the bag or attempt to reuse it.
Step 5:Thoroughly clean the area where the nest was located and any tools used in the process. Use a mixture of water and bleach to sanitize the area.

It is important to keep in mind that black widow spiders are venomous and their bites can be extremely dangerous, especially to children or those with weakened immune systems. If you are unsure about destroying the nest yourself, it is always best to call a professional exterminator for assistance.

Preventing future infestations

Preventing future infestations of black widow spiders is crucial to keeping your home and family safe. Here are some tips to help keep these dangerous spiders away:

TipDescription
Reduce ClutterBlack widows love cluttered environments where they can easily hide. To prevent infestations, keep your yard and home clean and tidy by removing any unnecessary clutter, debris or objects that may attract spiders.
Trim Your Hedges and TreesBlack widows build their nests in trees, hedges and other places where they can easily hide. By trimming these areas, you can reduce the number of potential nesting spots around your home.
Seal Entry PointsInspect the exterior of your home for small cracks, crevices or gaps, and seal them with weather stripping, caulk or foam. This is a great way to keep spiders and other pests out of your home.
Install ScreensInstalling screens on doors, windows, and vents can help keep black widows out of your home.
Use Essential OilsPeppermint, cinnamon, and tea tree oil are natural spider repellents. Mix a few drops of these oils with water and spray around your home to keep black widows at bay.
Keep Your Home DryBlack widows like moist environments. By keeping your home dry and well-ventilated, you can make it less attractive to these spiders.

By following these tips, you can greatly reduce the risk of black widow spider infestations in and around your home. Remember to always exercise caution and call a professional exterminator if you suspect that you have a nest on your property.

Conclusion

After reading this article, you now have a better understanding of black widow spider nests and what to do if you come across one. Remember that black widow spiders have venomous bites that can be dangerous to humans, especially children and the elderly. It’s important to approach any potential infestation with caution and use the proper tools and protective clothing if you decide to handle it yourself.

However, in most cases, it’s recommended to call a professional exterminator to safely and effectively remove the nest. They have the experience and expertise to handle the situation and can also provide advice on preventing future infestations.

Overall, it’s important to be vigilant and aware of your surroundings, especially in areas where black widow spiders are known to inhabit. By taking the necessary precautions and seeking professional help when needed, you can ensure the safety of yourself and your loved ones. Stay safe and spider-free!

Frequently Asked Questions

Can black widow spiders be found in all parts of the world?

No, black widow spiders are primarily found in warmer climates. They are commonly found in Africa, South America, and parts of the United States.

What do black widow spider nests look like?

Black widow spider nests are usually small, irregularly shaped webs. They are typically located in dark and sheltered areas.

Are all black widow spiders venomous?

Yes, all black widow spider species are venomous to some degree. However, not all bites will result in serious symptoms.

How dangerous are black widow spider bites?

Black widow spider bites can be very dangerous and cause serious symptoms such as muscle cramps, nausea, and difficulty breathing. Seek medical attention immediately if bitten.

What should I do if I find a black widow spider nest?

Avoid touching the nest and wear protective clothing. Call a professional exterminator to remove the nest and prevent future infestations.

Can black widow spiders be found indoors?

Yes, black widow spiders are known to build nests indoors in dark and cluttered spaces such as basem*nts, attics, and closets.

How can I prevent black widow spiders from building nests on my property?

Keep your property clean and free of clutter. Seal all cracks and openings in your home’s foundation and walls. Use insect repellents and regularly inspect your property for signs of infestation.

What are some common signs of a black widow spider infestation?

Common signs of a black widow spider infestation include spider sightings, the presence of spider webs in dark and sheltered areas, and finding egg sacs or spiderlings.

What should I do if I am bitten by a black widow spider?

Seek medical attention immediately. Apply a cold compress to the affected area and try to keep the affected limb elevated. Do not use any home remedies or try to suck out the venom.

Can black widow spider nests be safely removed without the help of a professional?

No, it is not recommended to remove black widow spider nests without the help of a professional exterminator. Attempting to remove the nest yourself can be dangerous and may result in additional bites and infestations.

References

Black Widow Spider Nests: Where to Look and What to Do (2024)

FAQs

Black Widow Spider Nests: Where to Look and What to Do? ›

You will find black widow webs in the lower stone wall cavities, sheds, garages, pool equipment enclosures, potting areas with storage and anywhere it's quiet and undisturbed and dark or well-shaded.

What to do if you find a black widow nest? ›

If you have a black widow infestation, it's important to call a pest control professional right away. Pest control professionals have the experience and knowledge necessary to safely and effectively get rid of black widows from your home.

Where do black widows usually nest? ›

They prefer undisturbed locations, so unless they are seeking warmth or are accidentally brought inside on firewood, they'll likely stay outside. Black widows build their nests in crevices, by doors and vents, or in other places that might also be attractive to other insects.

What does a black widow egg nest look like? ›

Southern black widow eggs sacs can be recognized for their grey and spherical appearance, and are generally around 9.5 mm in diameter with a conspicuous notch on the top. Each egg sac contains an average of 255 cream or yellow-colored eggs, and each female is usually in possession of 10 egg sacs.

How do you get rid of black widow egg sacs? ›

The easiest method is with a vacuum cleaner hose. Simply suck up the egg sac, and then throw away the vacuum bag into an outside trash container. If you do not have a vacuum and hose, or the hose or it is not long enough, you can use a broom.

How to permanently get rid of black widows? ›

An effective method for how to get rid of black widows is to use a liquid insecticide. Onslaught FastCap, Avesta CS, Demand CS, Residential Spider Kit, Cyper WSP, or Onslaught are some of the best black widow control products on the market.

What attracts black widows to your house? ›

Homes that have insect infestations can be particularly attractive to black widows because they feed on ants, flies and other house-dwelling pests.

What month do black widows lay eggs? ›

Black widow mating occurs in springtime into early summer. In some cases, black widow females consume males after mating, feeding on them as sources of nutrients needed for egg fertilization. Female black widow spiders can produce several egg sacs in summer months.

How do you know if a black widow has laid eggs? ›

These sacs get placed within the spider's web to keep them protected. Egg sac: Black widow egg sacs have a teardrop shape having white color and later take on a yellowish hue. The black widow spider's egg sacs are large and well defined.

Are there more black widows if you see one? ›

If you find a black widow spider on your property, chances are very good there are more of them around. Black widow spiders are fast movers, especially if they feel threatened. You can try using an insecticide spray or vacuuming up the spider, but the safest thing to do is to call a professional pest company.

What does vinegar do to black widows? ›

Lemon, tea tree, and peppermint are all said to deter black widows. Vinegar – Vinegar is too acidic for black widows and any contact with the substance can be deadly. Mixing vinegar with water and spraying down areas where black widow webs and egg sacs are found will help keep populations low.

What does a spider's egg sack look like? ›

Spider egg sacs are usually white to cream in color and will be either round or oblong in shape. Some egg sacs are smooth, while others may contain spikes or bumps. Black widow eggs are small, about the size of a pencil eraser. A black widow's web is messy and unorganized.

Should I remove spider egg sacs? ›

Common hiding places include the undersides or backs of furniture, and in spider webs that have been undisturbed for some time. Since these sacs can contain up to 300 eggs, it's crucial to identify and remove them promptly to avoid a full-blown infestation.

How long does it take for a black widow nest to hatch? ›

It contains an average of 255 eggs. The black widow female often produces several egg sacs. The young spiders emerge from the egg sac after an incubation period of 26 to 30 days, usually during the spring (Table 1). Spiderlings are then dispersed to different geographic areas through “ballooning.”

Are there more black widows if you find one? ›

If you find a black widow spider on your property, chances are very good there are more of them around. Black widow spiders are fast movers, especially if they feel threatened. You can try using an insecticide spray or vacuuming up the spider, but the safest thing to do is to call a professional pest company.

Should I be worried if I find a black widow in my house? ›

If you've seen black widows on your property, it is important to take action. These spiders are known to get into homes, and they can present a danger--certainly not the level of danger attributed to them, but enough danger that it is practical to protect ourselves from them.

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