Sign-in to Account
Call Us

(855) 948-5816

aptive-registered-logo-white

Find Service Area

What Are the Signs of a Black Widow Infestation?

Written by Aptive Environmental July 24, 2024

Sharing your living space with spiders isn’t unusual, but encountering a black widow spider can cause real concern. These arachnids—identified by their glossy black bodies and bright red hourglass marking—are venomous. 

Early detection of a black widow infestation is crucial for the well-being of your household, particularly for young children, older adults, and pets who may be more susceptible to the effects of a bite. 

This guide will equip you with the knowledge to identify black widows, recognize signs of infestation, and take the necessary steps for eradication. 

The Dangers of Black Widows 

A Detailed Close-Up Image Of A Black Widow Spider With Its Red Hourglass Marking On A Wooden Surface, Next To Its Egg Sac.

Black widows are infamous for their venom, which is estimated to be 15 times stronger than a rattlesnake’s venom. While fatalities from black widow bites are rare, the potential consequences can be severe. Bite symptoms can include intense muscle aches and cramps, nausea, vomiting, and difficulty breathing. 

Due to the potential health risks, it’s essential to address a black widow infestation quickly and avoid direct contact with the spiders or their webs. In many cases, getting in touch with professional Exterminators early is the quickest way to ensure your health and safety. 

How to Identify Black Widows 

A Detailed Close-Up Image Of A Black Widow Spider With Its Red Markings On A Wooden Surface, Positioned Next To Its Egg Sac.

What do black widows look like? Here’s what you need to know: 

  • Adult females, the most commonly encountered variety, are typically a shiny black with a distinct red hourglass marking on the underside of their bulbous abdomen.
  • Males are smaller and less frequently seen. They have red and white markings on their abdomens.
  • Young black widows start as orange and white, gradually turning black as they mature.

Black widow webs offer another vital clue. These spiders create messy, irregular webs, often constructed near the ground in secluded areas like basements, crawl spaces, garages, or under objects outdoors. 

Additionally, the presence of an egg sac—a silken pouch containing hundreds of spider eggs—near potential entry points like doorways is a strong indicator of an infestation. 

Signs of Black Widows 

While unexpected spider sightings are a clear sign of a potential problem, there are other subtle indicators to be aware of. 

Unusual webbing in secluded areas, particularly near the ground level, or the discovery of egg sacs warrants immediate action. 

Black widows are shy creatures, and encountering them directly is less common. However, if you do find shed skin—small pieces of brownish or grayish material around potential hiding places—it suggests black widow activity. 

Finally, small, pepper-like droppings near webs or harborage areas can indicate infestation. 

How to Get Rid of Black Widows 

A Detailed Close-Up Image Of A Black Widow Spider With Its Red Hourglass Marking On A Wooden Surface, Positioned Near Its Egg Sac.

If you suspect a black widow infestation in your home, prioritize safety. Avoid direct contact with the spiders or their webs. The most secure and effective course of action is to contact a professional pest control service. They have the expertise and equipment necessary to effectively identify and eradicate infestations. 

Preventing Black Widow Infestations 

The best defense against black widows is a proactive approach. Here are some key steps to prevent these spiders from taking up residence in your home: 

  • Declutter and Clean Regularly: Eliminate potential hiding spots by keeping your home clean and clutter-free. Regular vacuuming and dusting can help reduce spider populations and remove potential prey insects that attract black widows. 
  • Block Entry Points: Inspect your foundation and exterior walls for cracks or holes and seal them to prevent spiders from entering your home.
  • Store Items Strategically: Avoid storing firewood, boxes, or other clutter directly against your home’s exterior. These items create harborage areas for spiders and provide easy access points to your living space.

Think You Have a Black Widow Infestation? 

If you suspect a black widow infestation, don’t attempt to handle the situation yourself. Reach out to a qualified pest control professional to effectively eliminate the infestation. Contact Aptive, we’d love to help. 

Learn more about widow spiders

Curated articles for you, from our pest experts.

A Detailed Image Of A White-Framed Window With Slightly Foggy Glass Panes, Overlooking A Green Outdoor Landscape. The Windowsill Holds A White Porcelain Teapot In The Center, Flanked By Two White Vases Filled With Artificial Flowers And Greenery.

What Are the Tiny White Bugs on Your Windowsill?

If you've noticed tiny white bugs gathering on your windowsills, you're not alone. These small pests, often mites or similar insects, are a common sight in many homes. While they might seem harmless, their presence usually indicates specific conditions in your home...

Mar 17, 2025
A Detailed Image Of An Abandoned Red Brick House Surrounded By Overgrown Grass And Wild Plants. The House Has Broken Windows, Peeling Paint, A Collapsed Front Porch, And Ivy Creeping Up The Walls. The Background Features A Blue Sky With Scattered Clouds And Lush Green Trees.

The Link Between Overgrown Landscaping and Increased Pest Activity

Overgrown landscaping can lead to serious pest problems before you even notice them developing. When shrubs touch your home, grass grows too tall, and dense mulch accumulates, you're creating the perfect environment for pests to thrive. They use these areas for...

Mar 14, 2025
A House Mouse With Gray Fur Peeking Out From A Dark Crevice In Wooden Planks.

The Early Signs of Pest Activity: What to Look For

Pests don't suddenly appear overnight—they leave subtle clues long before you actually see them in your home. Recognizing these early warning signs can help you address potential problems before they develop into full-blown infestations. If you notice unusual...

Mar 14, 2025
A Detailed Image Of A Modern, Open-Plan Kitchen Featuring Granite Countertops, A Gas Stove, And Warm Pendant Lighting. The Background Shows A Living And Dining Area With Large Windows And Wooden Flooring.

The Dangers of Ignoring Pest Trails and Tracks in Your Home

Pests don't always hide completely out of sight—they leave behind clues of their presence. If you've noticed subtle trails along your baseboards or greasy smudges in your kitchen, you could be looking at clear signs of pest activity. These trails and tracks...

Mar 14, 2025
A Detailed Image Of A Flooded Backyard During A Rainy Day. The Yard Features A Stone Patio With Puddles, A Black Grill, A Fallen Umbrella, And A Lamppost. The Background Includes A House, Leafless Trees, Green Hedges, And Distant Hills Under An Overcast Sky.

The Connection Between Poor Yard Drainage and Pest Infestations

If you notice water pooling in your yard after rain, you might soon be dealing with more than just puddles. Standing water and consistently damp soil create perfect breeding conditions for a variety of pests. When drainage issues go unaddressed, you're likely to...

Mar 13, 2025
A Detailed Image Of An Old, Abandoned Attic With Wooden Beams Supporting A Slanted Roof. The Floor Is Covered With Scattered Wooden Planks And Dust, With Sunlight Filtering Through Gaps In The Roof. The Background Features A White Brick Wall With A Cross-Shaped Wooden Structure.

How Attic Insulation Can Hide Long-Term Pest Activity

Pests hiding in your attic insulation are surprisingly easy to miss. Since you don't access your attic regularly, and these unwanted visitors don't always leave obvious signs in your living areas, infestations can go undetected for months. If you've been hearing...

Mar 13, 2025
A Detailed Image Of A Modern, Open-Plan Kitchen Featuring Granite Countertops, A Gas Stove, And Warm Pendant Lighting. The Background Shows A Living And Dining Area With Large Windows And Wooden Flooring.

Spring Pests: What to Expect and How to Prepare Your Home

Spring is a season of renewal and growth, but it’s also a time when certain pests emerge, seeking food, warmth, and shelter. Ants, boxelder bugs, snails & slugs, millipedes, and centipedes are among the most common culprits. Here’s a closer look at these spring...

Jan 6, 2025
A Close-Up Image Of A Small Brown Field Mouse Sitting Among Fluffy, White Wildflowers. The Mouse Is Holding And Nibbling On A Seed, Surrounded By The Delicate, Feathery Texture Of The Plants, With The Natural Environment Creating A Soft And Serene Backdrop.

Mythbusting Common Pest Questions

Introduction Pests often bring more than just frustration—they bring myths and misinformation that leave homeowners feeling unsure about how to tackle infestations. Misconceptions about pest behavior, what attracts them, and DIY remedies can lead to ineffective...

Dec 17, 2024
Modern Living Room With Gray Walls, A Light Gray Sectional Sofa, A White Coffee Table, And A Wooden Tv Stand. A Black Flat-Screen Tv And A Potted Plant Are Placed On The Stand.

Budget-Friendly Pest Control Tips and Tricks

Pest infestations can quickly turn your home into a source of stress. Whether it's ants invading your home or the unwelcomed sound of mice in the walls, pests can make anyone feel uneasy. But when you're working with a tight budget, managing these unwanted guests...

Dec 12, 2024
An Aptive Pest Control Specialist Waves To Two Children From Outside A House Window, With An Aptive Van Parked In The Background. The Children Are Sitting At A Table Inside, One Waving Back While The Other Is Drawing.

The Importance of Regular Pest Control

Keeping a home protected from pests is essential for maintaining a healthy and comfortable living environment. A one-time pest control treatment is a fantastic first step in addressing immediate pest issues, but for long-term protection, regular pest control is the...

Dec 6, 2024

Take back your home with pest control today.