The Top 5 Best Roach Killers to Keep Your Home Roach-Free

Trying to combat cockroaches can give you the impression that you’re fighting a massive invasion that’s difficult to overcome. These resilient creatures have existed for millions of years, indicating that they’re not easy to eradicate. However, with some expertise and appropriate tools, you can at the very least prevent them from entering your kitchen. We consulted with two experts on cockroaches, each with over 40 years of experience. After combining their advice with our own testing, we suggest starting with some inexpensive remedies and progressing to Terro T500 Multi-Surface Roach Baits when required.

advion Cockroach Gel Bait

Our top pick for the most effective roach killer available on the market is the industrial-grade roach-eliminating set from advion. This potent, commercial-grade insecticide is suitable for both indoor and outdoor use in residential and commercial settings with high infestation levels. It can even be used in food preparation areas like kitchens. However, it’s important to note that protective gear must be worn when placing the bait around your home. The set includes four syringes, with each tube sufficient for application in up to five different spots. Once you’ve taken care of the inside of your home, you can also use this product outdoors, in sheds, garages, and around the house. The four-corner method is the best way to apply the product to every corner of each room, in addition to the typical roach-attracting areas like under sinks and in wall cracks. The product is highly attractive to unsuspecting roaches, so expect to see dead ones all over the place. The gel-based product works immediately, and its effectiveness lasts up to three months. It targets most cockroaches, including German and American, and is safe for pets. At the time of publishing, the product’s price was $40.

Combat Max Roach Killing Bait

For those seeking to eradicate cockroaches from their nests, the Combat Roach Killing Bait with eight mess-free and child-resistant bait stations is a suitable option. It is not recommended for those who prefer a more targeted roach killer for occasional use. To get to the heart of the infestation, bait stations are the way to go. Place the bait stations around sinks, behind toilets, near appliances, and other areas where you’ve seen or suspect cockroaches. Roaches will be enticed to the bait station, where they will take the bait and transport it back to their nest, triggering a chain reaction. The Combat bait station has larger openings than other bait stations, allowing larger bugs to enter. This feature makes it a great option for those who prefer a set-it-and-forget-it approach to pest control. Furthermore, it has a vapor-less and odor-free formula, so you won’t be reminded that Combat is working hard to solve your pest problem. However, keep in mind that the stations do not come with adhesive on the bottom, so they must be placed on flat surfaces. At the time of publication, an 8-pack of the product cost $13, and the product details include that it is a bait station type, targeted at cockroaches, has a duration of three months, and is not safe for pets.

HARRIS Boric Acid Roach Powder


  • Less toxic compared to other treatments
  • Affordable


  • May lose effectiveness over time
According to the concept of “integrated pest management,” it’s recommended to start with the least toxic treatment and gradually move on to stronger pesticides if needed. This roach-killing powder is composed of 99% boric acid, a cost-effective substance that is less toxic to mammals than most synthetic insecticides, as reported by the Rutgers University Cooperative Extension. The puffer bottle with a nozzle applicator allows for easy application of the powder into hard-to-reach areas such as cracks and crevices. However, boric acid may lose its effectiveness when exposed to environmental moisture, requiring reapplication every one to two months until the roaches are eliminated. For optimal results, it may be necessary to use this treatment in conjunction with other roach killers, such as gel or bait traps.

Safer Brand 51703 OMRI Listed Diatomaceous Earth

Diatomaceous earth is a safe and effective option for households with children and pets as it does not contain any harmful chemicals or toxins. This natural sedimentary rock, in powder form, acts as a mechanical killer by cutting into the exoskeleton of roaches once they consume it. As roaches breathe through their shells, the damage caused by diatomaceous earth can cause them to suffocate and die.

Besides roaches, diatomaceous earth is also effective against other pests like fleas, bed bugs, ants, and earwigs. The product is suitable for indoor and outdoor use but its powder form makes it susceptible to wind and rain. If you plan to use it outdoors, it is advisable to monitor the areas and reapply as needed.

Product Specifications: Type: Bait Active Ingredient: Diatomaceous earth Efficacy Duration: 48 hours to 1 week


  • Non-toxic and mechanical killer
  • Safe for households with children and pets
  • Effective against multiple pests


  • Requires reapplication after rainy or windy weather

You can purchase the Safer Brand roach killer on Amazon or directly from Safer Brand.

Our Top Pick for the Best Roach Killer

With a holistic approach to roach extermination, the Ortho spray bottle is easy to use. It also allows you to apply the spray anywhere around your home, inside and outside, so that you can protect your home from those evil-looking roaches that are a health hazard as well.

The high potent insecticide is very effective at killing roaches, even the most stubborn of cockroaches, the German cockroach. The Ortho spray is also a great choice if you want a more affordable way of controlling heavier roach infestations. It gives you 12 months of protection. However, you will need to re-apply it every three months.

How to choose the best roach killer

When buying a roach killer, there are several factors to consider. Firstly, you should choose the type of roach killer that is suitable for your infestation. For instance, a gel is an effective solution for large infestations, while foggers work well if you can’t locate the source or nest. Secondly, consider the efficacy length, which determines how long the roach killer will work without replacement or re-application. Thirdly, consider the pests the roach killer targets, as different products have different targets based on their active ingredient and bait. Additionally, the safety of your pets and children is crucial, as some products are harmful to them, while others are safer, such as one-way door traps and ultrasonic repellents. Another important factor to consider is the active ingredient used in the roach killer, with popular options being hydramethylnon, Fipronil, boric acid, and Indoxacarb. Lastly, consider the ease of use of the insecticide and whether it requires protective gear or not. Remember to read and follow the instructions carefully for optimal effectiveness.


What do professionals use to kill roaches?

Typically, exterminators use an integrated approach. They carry out large-scale cleaning of the premises with foggers and professional sprays and then set up baits and traps if a few roaches manage to escape. In professional products, you will find ingredients such as Indoxacarb, Cypermethrin, and Permethrin.

What kills roaches and their eggs?

With adults, everything is pretty simple. They die from exposure to insecticides as well as natural remedies like coffee grounds and boric acid. The eggs are so tough that they can survive even the most effective treatment. That is why it is recommended to use IGRs, which affect the development of hatched nymphs, preventing the proper formation of their organisms.

Does baking soda and sugar really kill roaches?

Yes, baking soda has a similar effect to boric acid. Sugar serves as a bait for cockroaches, and soda kills them. After absorption of such a mixture, gas bubbles form in insect bodies, due to which they die. Such a product is harmless to humans, and due to its low toxicity, it can be used in places where you cook.

Does diatomaceous earth kill roaches?

DE (or kieselguhr) is a well-known natural roach killer. Products based on it are completely safe for humans and animals since they have a physical, not chemical, effect on insects. DE crystals absorb liquid from roach shells, dehydrating them, which leads to rapid death. Also, because of this feature, pests cannot develop immunity to it.

Hello, everyone! I'm David Henry, a dedicated customer and enthusiastic reviewer of Tractor Supply Company. As a farmer and agriculture enthusiast, I frequently visit Tractor Supply Company to explore and purchase a wide range of agricultural supplies, tools, and equipment. Over the years, I have accumulated extensive experience and knowledge in shopping at Tractor Supply Company, and I aim to help others make wiser choices through my sharing. I understand the importance of selecting the right products for farmers, ranchers, and outdoor enthusiasts alike. That's why I enjoy sharing my insights and recommendations to assist individuals in finding the best-suited products for their needs. Join me as we embark on a journey of discovering quality products and making informed decisions at Tractor Supply Company. Together, let's enhance our farming and outdoor experiences through valuable insights and practical advice.