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The Best Roach Spray

Last updated on July 8, 2020

We looked at the top 10 Roach Sprays and dug through the reviews from 63 of the most popular review sites including Pest Strategies, I Remove Pest, The Pest Management, Pests, ProReviewly, Graded Reviews and more. The result is a ranking of the best Roach Sprays.

Best Roach Spray

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Our Picks For The Top Roach Sprays

Show Contents
Our Take
  Best Overall

Ortho Home Defense Indoor & Outdoor Insect & Roach Killer

Ortho

Home Defense Insect & Roach Killer

Overall Take

Long-Lasting RepellentThis home defense kit will eliminate pests on contact and serve as a long-lasting barrier.

  Organic Option

MDXconcepts Organic Home Pest Control & Roach Spray

MDXconcepts

Organic Home Pest Control & Roach Spray

Overall Take

Repels and KillsThis home pest control spray by repels, kills and eliminates all kinds of pest infestations.

  Safe For Pets

Raid Ant & Roach Killer Spray

Raid

Ant & Roach Killer Spray

Overall Take

Pet-Safe MaterialsKill bugs with less toxicity by using this natural spray.

  Natural Pick

Mighty Mint Natural Peppermint Oil Roach Spray

Mighty Mint

Peppermint Oil Roach Spray

Overall Take

Effective Natural SprayThis roach killer works with anti-fungal and natural peppermint oil.

  Works Quickly

Black Flag Dry Ant & Roach Aerosol Spray

Black Flag

Dry Ant & Roach Aerosol Spray

Overall Take

Quick-Killing SprayThis is a lethal and quick killer for insects, even in small cracks and crevices.

  Most Versatile

Hot Shot HG-96781 Roach Insecticide Spray

Hot Shot

Roach Insecticide Spray

Overall Take

Versatile Bug KillerWhatever the pest, this spray can likely kill it on contact.

Don't just take for granted what one reviewer says. Along with our own experts, Simplemost analyzes the top expert reviews of the leading products and generates a score you can actually trust.
17

Products Considered

We identified the majority of the roach sprays available to purchase.
10

Products Analyzed

We then selected the leading and most popular products for our team to review.

View All Product Rankings

63

Expert Reviews Included

In addition to our expert reviews, we also incorporate feedback and analysis of some of the most respected sources.

88,449

User Opinions Analyzed

We also incorporate user reviews from the leading retailers including Amazon, Walmart, Target, Home Depot and 7 others.

The Best Overall

Ortho Home Defense Indoor & Outdoor Insect & Roach Killer

Our Expert Score
9.2
Our Take

This sprayer is a great long term solution for defense against not just roaches but several types of insects. It is suitable for indoor or outdoor use and goes on without leaving behind a residue. It kills on contact but can also serve as a barrier around the home for up to a year.


Our Roach Spray Findings

Ortho Home Defense Indoor & Outdoor Insect & Roach Killer

What We Liked: This sprayer is a great long term solution for defense against not just roaches but several types of insects. It is suitable for indoor or outdoor use and goes on without leaving behind a residue. It kills on contact but can also serve as a barrier around the home for up to a year.

MDXconcepts Organic Home Pest Control & Roach Spray

What We Liked: This home pest control spray by repels, kills and eliminates all kinds of pest infestations by ants, fleas, earwigs, stink bugs, mites and scorpions.

Raid Ant & Roach Killer Spray

What We Liked: If you have pets or are worried about small children, this spray can was formulated with the household health in mind. Its materials are meant to be non-toxic for everyone but the bugs. A spray in the right place will kill on contact or provide a lasting invisible fence against later insect incursions.

Mighty Mint Natural Peppermint Oil Roach Spray

What We Liked: This product is made with peppermint oil, which is not only natural but an effective repellent for insects. It is effective at killing ants and can work on even the largest roaches. It is equally suited for indoor and outdoor use.

Black Flag Dry Ant & Roach Aerosol Spray

What We Liked: Use this sprayer to kill large or small insects with equal efficiency. The extension tube is a big help in getting the substance into cracks or crevices, where it can deter roaches for months. The product is safe for indoor use with little residue.

Hot Shot HG-96781 Roach Insecticide Spray

What We Liked: The fast-acting pesticides in this can are a good match for a wide variety of pests. Problems with ants, roaches, spiders and even wasps can be solved with a quick spray. It is suitable for use both indoors and out.

Our Roach Spray Buying Guide

Do you feel like your home is your castle? If so, nothing can send you rushing to the battlements like the sight of a roach.

Even the most staunch animal lovers draw the line at cockroaches, for good reason. Aside from mosquitoes, they’re one of the hardest insects to love — and the hardest to kill. They tend to come out only at night. They’re great at hiding in even the smallest crevices. They multiply quickly, in rates that put rabbits to shame. Worst of all, they need the same food, shelter and water that our homes provide, and once they find it you can bet they’re setting up camp.

Roach sprays are one of the most popular ways to deal with these persistent pests. They’re hardly the only method, and they do work best when combined with other, more long-term solutions. But when roaches make an appearance, they’re one of the fastest ways to make them disappear.

Sprays can be formulated from a variety of different ingredients, some of which can carry health risks for more than their intended target. But the two main types of aerosol roach killers are intended for residual and non-residual use.

Of the two, residual sprays are a more strategic form of pest control. They lay down a deposit on surfaces commonly visited by roaches. Some residual sprays are meant to be a repellent to these bugs and serve as a barrier to their entry. Such sprays might include relatively benign ingredients such as peppermint oil or chrysanthemum extract.

Other residual sprays offer a more aggressive solution, using toxic substances that will stick to the roaches’ bodies as they walk through. These substances will either kill the roaches by poisoning them (and any roaches they come in contact with at the hive) or act as an IGR (insect growth regulator) by sterilizing them. Some sprays can even do a little of both. Lethal residuals commonly use cypermethrin or some other member of a synthetic class of chemicals called pyrethroids. Some common IGRs include hydroprene or methoprene. Either way, you’ll want to avoid using these residuals on surfaces where you eat or where children might play. Doorways or baseboards are usually a good bet.

Some of the best residual roach killers can only be used in certain areas, so pay attention to the ingredients and user guides. Products containing diatomaceous earth are especially popular and effective at sticking to roach legs, but the substance has to stay dry to work. Needless to say, that limits its use outdoors.

Non-residual sprays are a more immediate solution. Pyrethroids are another go-to ingredient in these sprays, but they are formulated more differently and are meant to kill on contact. Again, try to avoid using these on kitchen countertops or near pets or small children.

Knocking out a single roach or two with these products might be satisfying, but once again: It’s hardly a permanent solution. Once you see one roach, you can be sure there are more. A better strategy might be a multi-pronged approach. Non-residual sprays with a thin nozzle attachment are great for flushing cockroaches out of corners or cracks, right onto areas where you may have laid down a residual layer of insecticide. You can use this same process with bait traps or other non-spray forms of pest control.

Simplemost Fun Fact

Contrary to that old saw, there’s no sane evidence that confirms cockroaches could actually survive a nuclear explosion. They could certainly handle the radiation afterward for much longer than humans, however, not to mention a host of other traumas. Most roaches can survive with no food for up to a month, and can even make do for about a week without their head. (While they do need their mouth to eat, a roach’s open circulatory system allows it to breathe without one.)

The Roach Spray Tips and Advice

The more weapons you have against roaches, the better. Just make sure to use them wisely. If you’re using bait traps, IGRs or some residual spray with a delayed effect, make sure you don’t use a contact killing spray anywhere too near that area. Roaches will avoid the traps you’ve set, rendering them ineffective.


About The Author

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Tod Caviness 

As a professional writer for the past couple decades and a homeowner for the last seven, Tod Caviness has learned the hard way what vacuum cleaners will actually pick up dog hair and which plants will survive on a Florida patio. His favorite room: The office, with the kitchen a close second.