| |

Black Widow Infestation

Black widow infestation. In this guide, you’ll discover two signs that signal a black widow spider infestation. You’ll also find out where to locate these telltale signs of infestation.

In other words, you’ll get the answer to the question of where black widows hide inside the home. In addition, we’ve provided four steps to take in eliminating any unwanted black widow spiders within the home.

Furthermore, we’ve even covered some common questions that our readers have had regarding black widow spiders.

Black Widow Infestation

Like spiders, black widows often enter through various cracks and holes. One way of providing protection for your property is by making sure you seal off those areas that might allow entry such as around doorways, windows, the property’s foundation and so on.

You might even want to consider removing any water reservoirs and humidity levels in the event that these can also attract black widows.

1. Black widow spider web

black widow spider web

Black widow spiders don’t spin messy webs; they are very meticulous with their construction. You’ll find out in a minute just why this is.

Black widow spider webs seem haphazard, but they’re incredibly symmetrical when you get down to the details.

The neat and orderly spider silk of black widow spiders’ webs can be up to 14 inches long.

Suppose you look closely at black widow spider webs. In that case, you’ll see that the construction is asymmetrical, so the fragile thread angles shoot downward rather than upward — something very particular about black widow spider webbing.

2. Black Widow Spider Egg Sac

The egg cases of black widow spiders contain eggs. Black widow spider egg cases are white and spherical, with a tiny notch at the top. A female black widow can produce up to eight such sacs in one day.

They spin their webs using the same lines as those used for their egg cases; the sacs have a diameter of 510 millimetres, which enables them to contain more than 250 eggs each.

These eggs will take fourteen days to hatch, after which the spiderlings remain in their case for about six days before emerging for the first time as juveniles.

The young spiders will shed their skins again approximately seven times after birth until they are old enough to go off and hunt for food themselves.

Types of Black Widow Spiders

The continent of Europe has three types of black widow spiders in it. They’re the southern black widow, northern black widow, and western black widow spiders.

The only difference between them is the colour of their spots – red hourglass or not clear red dot or triangle.

The southern black widow spider is found in the most southern parts of Europe; they are commonly seen throughout hot and humid areas in Spain, Italy and France.

Northern black widows are primarily found in central Europe; however, some sightings as far north as Norway have.

These particular species often bask out in open fields all day long for sun, just like any other spider would do if it wanted a nice tan!

The western variety can be found all over Europe except for Scotland (as much as I wish that were true.) These spiders prefer deep dark forests to live out their lives with lots of privacy.

Ways of Getting Rid of Black Widow Spiders

  1. Cluttered spaces should be vacuumed.
  2. Remove the egg sac.
  3. Use essential oils to repel black widows.
  4. To draw black widows out of hiding, use spider baits.

What Are the Black Widow Spider’s Habitats in the US?

Black Widow Spiders can be found throughout North America, with populations in Florida, Texas, Tennessee, Illinois, Colorado, Wisconsin, Oregon, Kansas, Oklahoma, California, and Boston being the most prevalent. Mexico and Canada are also home to these spiders.

Previously considered rare here (and therefore renamed the Latrodectus Hesperus), cases of redbacks turning up in the Australian Outback have contributed to a recent study indicating that their numbers may be on the increase.

 Is the Black Widow Spider poisonous?

is black widow spider poisonous

Spiders like black widows are poisonous, but they rarely kill humans.If you are bitten by a black widow spider, you will experience intense pain, swelling, and a burning feeling on the bitten area.

Which is usually recognizable by two markings that look like fangs. Other signs of poisoning may include redness within that area, cramps in the abdomen and vomiting.

Seek medical attention as soon as possible if this happens to avoid further complications or sicknesses from developing later down the line.

Black Widow spiders can jump?

The black widow spider, while standing still, doesn’t move. But it has several defence mechanisms that help ward off predators.

They don’t look like it, but their legs are pretty fragile and brittle, so they don’t have enough strength to make the black widow jump.

However, black widows can easily crawl from their position onto any prey lurking at ground level for protection and meals.


Black widow infestation. In this guide, you’ve discovered where and if black widow spider signs may be located in your home and yard. As previously mentioned, spiders are crafty creatures that like to hide during the day, so it can take a keen eye to find them.

Related Posts

Similar Posts