How to Prevent Black Widow Spiders

Prevent Black Widow Spiders

Black widow spider is one of the most dangerous species of spider. They are 15 times more dangerous than rattle snake. I have already discussed about the process of identification in another article, called How to Identify Black Widow Spiders. Today, I will show you How to Prevent Black Widow Spiders. Prevention is better than cure. So, let’s start our journey!


Black widow spiders love to live in dark. They make their net in such places where people don't go regularly. Actually they like to live in such place where they can build net and hunt insects without any interruption. Holes, cavities, cracks, window edges, door frames, corner of the room, etc. are their likely places for making habitat. So, you should clean your house regularly.

Clutter Management

Clutter is the heaven to black widow spiders. They love to make net inside clutter. You can control them by proper clutter management. You should remove all the unnecessary clothes, shows, papers, books, etc. form your house.

Firewood and Debris Management

Firewood and debris are most likely place to back widow spiders for hiding inside and making nest. You should manage those things properly so that they can't make nest. You should remove unnecessary or unused firewood and debris from your house for preventing black widow spiders.

Remove vegetation, vines, and shrubs

Sometimes, produce vegetation, vines, shrubs etc. grows on our boundary walls. Those plants are safe habitat of spiders. Black widow spiders like to build nest there. So, you should keep your house free from vegetation, vines, and shrubs for preventing black widow spiders.

Proper Sealing Your Doors and Windows Cracks

It is very important to seal your doors and windows properly for preventing black widow spiders. Very narrow space is enough for a black widow spider for entering into your house. So, you should seal each and every crack, cavity, hole for preventing them. You may use silica gel for sealing those cracks. You should sprinkle some pesticide dust into those cracks and cavities before sealing. This will kill black widow spiders if there is any.

Use Screen On Door and Window

You can use door and window screen for preventing black widow spiders. If already you are using screens then make sure there has no holes on the screen. And also ensure that the air ventilation screen is properly and tightly fitted. You should also install sweep brush under the door and window for preventing black widow spiders.

Use Yellow or Sodium Vapor Bulbs

Flies, insects, and crawlies are greatly attracted by traditional incandescent light bulbs. Black widow spiders are also attracted strongly by those lights. So, you should change light bulbs from incandescent to yellow or sodium vapor varieties. Yellow or Sodium Vapor Varieties light do not attract insects.

Install Insect Trap in Your House

By controlling house insects you will be able to reduce the food supply of black widow spiders. You can control house insects by using insect’s traps and baits into your house.

Use natural spider deterrents

This is a good idea for controlling black widow spiders without using any chemical pesticides.
  • Put Wrens Nest Box Into Your Garden: Wrens are great hunter of house insets. They kill every type of spiders including black widow spiders. You can encourage them for making nest into your garden by simply putting nest boxes. You may also use apple slices, peanut butter, bread crumbs, etc. for attracting wrens.
  • Use horse chestnuts: Horse chestnuts contains a chemical called “saponin”. Black widow spiders dislike saponin and always try to stay away form it. So, if you can sprinkle some horse chestnuts around the infested areas then the black widow spiders will stay away.
  • Use Lemon Juice: Black widow spiders dislike the smell of lemon. You can use lemon juice for preventing black widow spiders. Mix couple of lemon juices with 2 gallon of water and spray to the infested areas.
  • Use Peppermint Oil: Peppermint oil can also be used for preventing black widow spiders. They dislike the scent of peppermint oil and maintain safe distance from it. Very few drops of essential oil is enough for getting rid of black widow spiders.
  • Use eucalyptus: Black widow spiders dislike the smell of eucalyptus. Simply sprinkle some leaves of eucalyptus around the infested area. This will control black widow spiders at home.

Hope you will be able to prevent black widow spiders in your house by simply following the steps described above. Have a black widow spider free house, have a safe house. 

How to Identify Black Widow Spiders

Identify Black Widow Spiders
Spider is the name of a dangerous insect, at the same time they are friend of ours. They help us by killing house insects. They help us controlling insects on our crops. But, few species of spiders are harmful and dangerous for us. They have strong venom and sometime they are deadly. Black Widow Spider is one of the most dangerous spider of this world. They can seriously injure us.

Getting rid of black widow spider is very complex. But, the prerequisite of getting rid of them is Identification of Black Widow Spiders properly. Today I will show you how to identify black widow spiders. We will categories the identification process into three divisions, i.e. 01. How to Recognize Black Widow Spiders, 02. Know Their Habits, and 03. Understand The Danger Of Their Bite. Let’s see how to identify black widow spiders sequentially.

First Step: How to Recognize Black Widow Spiders?

They are the very common figure across the North America. The US, Canada, and their neighboring countries are ideal habitat for Black Widow Spiders. Black widow spiders are considered the most venomous spider of the world.

The Females are most dangerous. We can easily identify them. They are black in color, half inch long, spherical abdomen, and the most important sign is red hourglass on her abdomen.

Male Widow Spiders are not venomous. But, it is important to identify them. They are small in size, about ¼ inch length. They have several red dots on their abdomen and their color is gray or brown. Another important sign is they have red or yellow bands on their back.

Spider lings: they are the new born black widow spider. At the first stage, that means after born they are white or off white in color. Their color turned into dark with their age. They do now show any sign of whether they are male or female. At this stage they do not have venom.

Second Step: Know Black Widow Spider’s Habit

Black widow spiders love to live in dark, holes, cavities, cracks, boxes, among firewood, and so one. They become active during night, because they are nocturnal insect.

  • Black widow spiders produce stronger nets than other spices of spiders. Like other species they use their net for catching pray and storing cocoon of eggs.
  • They are generally found in dark places, edges of the room and furniture, storage, garages, periodic used goods and also vehicles. They generally choose non disturbing places for creating nest.
  • They love to live in territory, so you will find a lots of black widow spiders at a single place.

Third Step: Understand the Danger of Their Bite

We have already discussed that the only female black widow spiders have dangerous venom. How strong the black widow spider’s venom? It is said that their venom may be 15 times stronger than the venom of Rattlesnake.

That venom is neurotoxin, which can aches muscles, produce abdominal pain, create breathing difficulties, and nausea. Don’t be afraid of black widow spider’s venom, medical science is now very matured. If anyone can take immediate medical treatment then the venom will not do any major damage. But, if do not take right medical treatment in time then a bite may lead us to death. 

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