Using Bug Bombs On Spiders? – Here’s The Most Effective Way

  • Written By: Phil Hawes
  • Time to read: 8 min.

Is there anything creepier than a bunch of spiders lurking in the corners of your home? If you’re like most people, the answer is probably “no.”

And if you’ve ever tried to get rid of spiders by using a bug bomb (or a fogger), you know that it’s not always an effective method. In fact, using bug bombs on spiders can sometimes make the problem worse. But don’t worry – I’ve got the best way to get rid of those pesky critters safely and effectively.

So, if you have a spider infestation and are at your wit’s end trying to figure out how to get rid of them, don’t worry – I’ve got you covered.

In this article I’m going to explain why using a bug bomb on spiders may not be as effective as you’d like and then explain how to do it right.

Let’s get started!

Firstly, do most bug bombs even work on spiders?

do most bug bombs even work on spiders

You’re not going to do much damage to spiders roaming around your house by using a standard bug bomb. There are two reasons for that: its reach and its lousy results on arachnids.

The very first thing you have to think about is the spray’s range. A bug bomb will release plenty of pesticide around it – but these chemicals will never reach most spider hideouts.

Why is that? Because arachnids love to hide in the cracks and crevices of your house. Small, secluded holes and places you don’t even know you have!

So, sure, you can set off a bug bomb that will bother bugs crawling around your house – but this rarely means you’ll reach spiders hiding under your stairs or beneath your bookshelf.

Let’s say you set off the biggest conventional bug bomb on the market and reach every space and place in your house. Congratulations! Now, these invading spiders are dizzy!

That’s right, the average bug bomb ingredients are not enough to kill spiders. You will probably bother them a bit, but that’s it.

Of course, this might just lead to a different problem. As a result, spiders (and other surviving bugs) will just travel somewhere else inside your house if you don’t kill them with the bug bomb.

Fortunately, there are other more effective alternatives you can try.

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Use these brands of bug bombs to kill spiders

Raid Concentrated Fogger

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You need something that will reach all nooks and crannies in your house as well as kill every spider it finds. This spider-specific bug bomb does that – and more. It will also deal with other bugs you may have living in your house – because it covers a 625 square feet radius.

That means you take care of most arachnids, bugs, and insects in one blow. It won’t stop there. This product has a residual effect that lasts for up to two months.

What’s the best part? It will leave no stain or foul odors when you use it. That along with the continued action for sixty days makes Raid Concentrated Fogger a winner!

HotShot Fogger

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Similar to the Raid Concentrated Fogger, the HotShot Fogger will leave no stains when you use it and lasts for nearly two months after you set it off. It’ll also reach every single little spider hideyhole in your house.

It covers a 2000 cubic feet unobstructed radius, which means you can eradicate spiders in some very big spaces

From experience, I would recommend that you really read the instructions for this fogger to get the most out of it. It’s not that it’s difficult to use, but you need to use it correctly for a more effective result.

Other options are pretty straightforward to use – and you may want to look into them if you don’t want to make that much of an effort when using a spider bomb.

OFF! Outdoor Fogger

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If you have a garage or gazebo that is infested with spiders and other bugs, then this outdoor fogger is a great option.

OFF! Outdoor Fogger will act for six hours and cover a 900 square feet radius. Most people use it to clear out their garden or backyard before a barbecue or any other kind of gathering. I also prefer to use this for my outbuilding rather than other foggers. I’ve found that It will deal with pesky spiders really well in these places.

I don’t recommend that you use this fogger indoors as this product has an odor a little stronger than other brands. It also may leave more of a stain, which isn’t a problem for outdoor parts of your property.

It’s a good option to consider anyway.

Do I have to wash everything after using a bug bomb?

I remember when I first used a bug bomb I was worried my furniture and possessions would be covered with pesticide. Would I be safe?

Well, most bug bombs do not require you to clean or wash anything after you use them. This is certainly true of the ones I’ve recommended in this article. Make sure you clear any doubts you might have by reading the instructions.

If you feel like washing everything after using a bug bomb, do the following:

  • Open your windows: The very first thing you will feel like doing is let the chemicals out of your house. Open your windows to do so. You can encourage even better air circulation by using fans around the house.

  • Clean eating surfaces: Doing so will help you get extra peace of mind. Clean your kitchen countertop and any other surface where people cook or eat. You only need to use soapy water. Don’t worry about cabinets or closets as the bug bombs cannot reach inside those places.

  • Sweep dead bugs and spiders: After a few hours, you will notice a lot of dead insects around if the bug bomb worked. Grab a broom or a vacuum and remove them. It’s not a bad idea to wipe the floor or surface where you found them after.

Just remember though, that all commercial bug cleaners are designed to be harmful to bugs but not to us as humans. So, don’t feel too worried. As long as you follow the instructions to the letter, you will be safe!

How do you fumigate a house for spiders (DIY vs Professional)?

Let’s imagine that you’ve just bought an old house or like I used to, you’ve rented a rarely used vacation home that’s full of spiders. The first thing you’ll want to do is to fumigate. So, why should you try to do this yourself and in which circumstances should you call in a professional?

DIY spider fumigation

Doing DIY pest control is more time-consuming than hiring a professional. You have to read reviews on spider bombs, pick the right one, and use it. You also have to take care of cleaning afterward. You save money – but you spend more time.

  • Cheaper: You’re going to spend less money doing pest control yourself than hiring someone to do it. It’s not a bad idea if you know how to handle yourself around pests.

  • You’re in control: Being in control can be both good and bad, depending on how you look at it. It’s a good thing because you’re in charge – but it’s bad if you mess things up.

Professional spider fumigation

Hiring a professional is easier than going down the DIY road when dealing with spiders (or any other household pest). You call a guy, wait for a team to arrive, and let them work. It has a cost, though.

  • More Expensive: Hiring a professional to deal with a spider infestation will cost more than buying a spider fogger and releasing it indoors. You get what you pay for, though. A pro will be ten times more effective than you will.

  • More effective: Hiring a professional has a two-fold advantage. They know the job better – and they also have better tools to accomplish the task. They have more powerful pesticides and other tools to deal with pests that you will not be able to easily buy.

  • Other people in and out of your house: Hiring a pest control professional means allowing them to walk around your house and do a thorough look around – because they have to find where the insects are hiding. A professional approach may not be for you if you’re uncomfortable with that.

Why am I getting a lot of spiders in my house?

Arachnids love controlled climates and dark, secluded places. Do you have your thermostat set at the same temperature all the time? Are there small, dark places where spiders could crawl to? If there are, they will get there one way or the other.

How do spiders get in exactly? Well, they will creep in via small holes and open spaces. If you have open doors, windows, or similar, that’s where spiders are gaining access.

You may also bring them in (without knowing) from your garden, parks, and similar places. So, giving yourself a brush down before you walk into your house or car is a good habit to develop.

Another big reason for spiders to go to your house is food. Spiders will try to get inside your house and have a feast if there are insects around. This is actually one argument for letting spiders be and just do the job of eating mosquitos and flies.

What kills spiders instantly?

The best way to kill a spider that has infested your home is to use poison. Most spiders have a natural resistance to most poisons, so you need something that is especially toxic to them. The best kind of poison for this purpose is called web killer, and it works by melting the spider’s web so that they can’t escape.

There are also other ways to kill spiders if you don’t have access to web killer. For example, using sticky traps is a popular method since spiders are attracted to them. Simply set up several of these traps around your house and wait for the spiders to get caught. You can also use bug sprays or other kinds of insecticides if you know where the spiders are hiding.

Of course, the best way to kill a spider is the good old-fashioned one – by squishing it with your shoe or a piece of paper. While this won’t work on all spiders, it’s certainly the quickest and most satisfying way to kill one.

So there you have it – a few ways to kill spiders instantly. Here are some products other than bug bombs that I’d also recommend:

Web Killer: This is a special kind of poison that’s designed to kill spiders. It works by melting the spider’s web, so they can’t escape.

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Sticky Traps: These are traps that are covered in a sticky substance. Spiders are attracted to them and will get stuck when they try to walk on them.

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Bug Sprays: If you know where the spiders are hiding, a good bug spray can be an effective way to kill them. Just be sure to read the product label carefully and follow the instructions exactly.

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Spider repellent: In addition to pesticides, you can also try and pre-empt a spider infestation by spraying repellent in your home and yard. You can even take the hi-tech route and get an ultrasonic repellent.

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Whatever method you choose, remember that killing spiders is not always necessary. Sometimes it’s best to just live with them and appreciate their place in the ecosystem.



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