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5 Best Roach Killer Reviews: Poison Gel Baits, Sticky Glue, Spray, Acid and IGR



Best Roach Killer
Best Roach Killer

Roach is an insect most people are disgusted by. Sadly, these bugs can survive in almost all kinds of extreme conditions. Regardless of your opinion on roaches, one has to admit that these bugs are really something special.

If their legs are hurt or cut off, they will re-grow! If you leave some biscuit bits on the carpet, they will disappear in a second. If you try to destroy them with bacteria and other pathogens, these bugs will remain healthy thanks to the antibiotics they produce!

They have an almost supernatural sense of smell. And above all, they can eat absolutely everything, and survive in brutal conditions. However, there is a way to get rid of them! Stay with us and learn more on destroying this menace for good.

No.Product namePrice
Perfect for
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1.Syngenta Advion Cockroach Gel Bait 4 X 30 Gram Tubes Roach Controlfrom $33.95
German, American, Oriental, Brown, Australian, Asian, Brown-banded, and Smoky-brown roach, both indoors and outdoors
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2.Hot Shot Ultra Liquid Roach Bait, 6-Countfrom $19.99
All adult roaches and their eggs
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3.Invict Gold Cockroach German Roach Control Gel Bait 4 tubesfrom $24.93
German roaches, both for indoors and outdoors
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4.HARRIS Boric Acid Roach and Silverfish Killer Powderfrom $7.99
Non-toxic, attracts roaches very quickly
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5.Combat Roach Killing Bait, Large Roach Bait Station, 8 Countfrom $8.75
Large roaches, long-lasting solution
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What is a professional roach killer?

A professional roach killer is a product in a liquid form, or in form of a spray, poison bait or trap that is designed specially to kill the roaches.  These are heavy-duty sprays, gels or liquids used by professional services. Today, these products are also available to anyone else dealing with roaches who want to exterminate them by himself/herself.

The most popular type of professional roach killers today is the gel bait. Why? The unique combination of attractants and poison make these bugs gather, expecting a feast, but they end up consuming the poison. We will talk more about the way in which the roach killers work in the following section.

How do Roach Killer work?

You should know how roach killers work in detail before making your final decision and buying a roach killer product. Different types of products have different work principles. Let’s see how poison gels, sticky glues, killer sprays, acid products, and IGR products work.

Poison gel

Poison gel and poison gel baits work slowly to eliminate all the roaches there are. These products are perfect, as they are very effective – up to 100 %! Their key characteristics are slow elimination process and eliminating the whole population of roaches.

Sticky Glue

The greatest disadvantage of this, somewhat old-fashioned, model is the fact that it works only for the roaches that get trapped. It can kill a limited number of roaches, but those that get trapped do die. We would say that its effectiveness is around 50 %.


Roach killer sprays are very fast, but they kill only the bugs that are directly affected by the spray. Therefore, we would again mark the effectiveness of this product at 50 %.


When we say roach killing acid, we imply boric acid. Its key features include a very slow, but steady process of pest elimination. It is based on the fact that boric acid dehydrates the bugs. Another benefit of this kind of roach killers is the fact that boric acid is not toxic. Also, it is affordable. We would mark its effectiveness as 100 %. If you want to learn more about boric acid and safe sellers, take a look at this article.


These products work on a sophisticated principle of sterilizing the adult bug and stopping the growth of the larva, thus slowly, but definitely, eliminating the whole population. The only disadvantage is the fact that it is a very slow process and that most people want a faster solution. It will take four to six weeks to completely eliminate the population. However, its effectiveness is 100 %.

How to choose the best roach killers in the market?

There are some tips and guidelines that can help you choose the best roach killer in the market. First of all, think of your safety. If you have kids or pets, make sure not to choose poisonous products. These can be lethal for your child, and also for your pets if they come in contact with the product, which is very likely, especially if your child is more than 1 year old.

Next, look for the effectiveness of the product. If you want an urgent solution, i.e. you want your house to be immediately free from roaches, opt for the products that show effect very quickly. You don’t want the IGR products, nor the boric acid. You should probably opt for a spray, or, even better, a combination of spray and gel, or several products to cover the gaps. If you want to kill individual roaches, you should definitely opt for a knockdown roach killer spray.

Also, remember that you must check on the product label whether the product is effective on German or American roaches. Some products are good for both, but some are made for one kind only.

The best roach killer reviews

If you have visited this page and opened this article, we are sure you will like our top 5 roach killer products review! We analyzed lots of different products available on the market, consulted the experts, as well as the user community reviews. We even tested the products from the narrower selection.

We took different factors into consideration, such as efficiency, type of the product, user satisfaction, how fast it works, as well as what happens after the product dries out. Moreover, we took the price and packaging into consideration as well. This was the value grid that helped us evaluate the products objectively. Let’s see why these five products are the very best roach exterminators!

1. Syngenta Advion Cockroach Gel Bait 4 X 30 Gram Tubes Roach Control

This product by Syngenta comes in form of gel bait. As we have already said, this is one of the most popular forms of roach killer products. It is formulated to control the roaches in commercial buildings and facilities, industrial sites and facilities, as well as residential buildings and objects.

It is a versatile product that can be used both indoors and outdoors. The best thing is – you can use it even in areas that come into contact with food (if you stick to the manufacturer’s guidelines).

Moreover, it is a non-repellent, high-consumption bait that is suitable for both German and American types of roaches. In addition, it is suitable for killing the so-called Brown roach, Oriental roach, Australian roach, as well as Asian roach. Moreover, if you are dealing with the Smoky-brown and Brown-banded types of roaches, this is the best product for you.

The benefits of using this product include speed, 100% efficacy, simple use, good design, suitability for different types of roaches, thorough control, and extinction, and efficiency even over the toughest types and infestation cases.

This product is based on Indoxacarb, a powerful active ingredient strong enough to eliminate even the toughest roaches. You will get the product with the syringes for easier application.

This product found its area of application in industrial facilities, hospitals, schools, residential objects, offices, hotels, aircraft, warehouses, trains, etc.


  • This product is suitable for different types of roaches.
  • This roach killer is easy to use and 100 % effective.
  • It can be used both indoors and outdoors.


  • This product is slightly more expensive than the competition.

Final verdict

This roach killer by Syngenta is perfect for German, American, Oriental, Brown, Australian, Asian, Brown-banded, and Smoky-brown roach. It is easy to use and apply and it destroys roaches 100 %. It is a good choice if you want to use it both indoors and outdoors.

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2. Hot Shot Ultra Liquid Roach Bait, 6-Count

Hot Shot Ultra Liquid Roach Bait product’s greatest advantage is the fact that it kills the roach eggs as well, not only the roach bugs themselves. In this way, the whole population will be extinct.

Moreover, we liked this product because it is suitable for both small and big roaches. How does it work? Its formula is very attractive to these awful bugs. They come to eat the food from the bait and eat the lethal dose of poison as well. It is a quick kill system. You will notice the improvements very quickly after you place this product to the strategic locations.

In addition, this product doesn’t leave a mess behind. It is based on a non-stain formula. All you have to do is place the tablets and wait for the roaches to come.

You will get six bait stations in one package. Moreover, this is a very affordable product. The manufacturer recommends placing the tablets in places where you usually see the roaches. Also, you should place a tablet under the kitchen sink, under the bathroom cabinet, and in dark places near cracks and piping.


  • Suitable for big and small roaches.
  • Easy to use.
  • No mess.
  • Kills both adults and eggs.


  • This product is not eligible for international shipping; available only in the USA.

Final verdict

If you are looking for a product that is very easy to use, without any mess, we recommend you to buy Hot Shot Ultra Liquid Roach Bait. You will get 6 tablets in 1 package. It is an excellent product for killing both adult roaches and their eggs.

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3. Invict Gold Cockroach German Roach Control Gel Bait 4 tubes w/ plunger

This product is based on imidacloprid, its key active ingredient. A tube contains 35 grams. You will get 4 tubes in 1 package.

This roach killer is suitable only for German roaches. If you have a problem with this type of these terrible bugs, we are sure you will want to know if this product acts quickly or in a few weeks. The good news is, its effects are almost instant! You will notice that roaches are dying only 20 minutes later.

In addition, the so-called “secondary kill”, i.e. roaches eating droppings and carcasses of those that already ate the bait, is also very efficient with this product. You will quickly notice that colonies, i.e. whole populations of roaches are dying, even though you didn’t use many baits.

Who is this product perfect for? This product is perfect for those coping with the problem of German roaches. In addition, it is good for those who want a “clean job”, no mess, no bait aversion issues, and fast results.

How did the manufacturer ensure that there won’t be bait aversion? The bait gel contains eleven different attractants and a very strong active ingredient called imidacloprid, as we have already mentioned. One of these 11 attractants will definitely attract even those roaches that are bait averse.

We must point out that this product is very safe for use. It is designed without food allergens (eight most common ones) to protect your kids. Therefore, it is often used in schools.

Its key features are superb palatability, extremely fast results, a good package with syringes and a plunger, and the fact that you can use it both indoors and outdoors.


  • Affordable product.
  • Comes with a syringe and a plunger.
  • No mess.
  • Very fast results.


  • This product is good only for the German roaches.

Final verdict

This is the best gel bait product for those dealing with stubborn German roaches. It is a gel bait product which leaves no mess around. It is very easy to use and suitable both for indoors and outdoors. If you want very fast results and total extermination of German roaches, we recommend this excellent product.

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4. HARRIS Boric Acid Roach and Silverfish Killer Powder w/Lure (16oz)

Are you looking for a long-lasting product? Do you want a solution that keeps on working even weeks after the first application? Do you prefer non-toxic roach killer products? Here’s the best product for you.

HARRIS Boric Acid Roach and Silverfish Killer Powder comes in a 16 oz package and is the very best non-toxic solution based on boric acid. It has a prolonged activity. You will notice that the bugs are dying even several weeks after application of the powder. However, you must make sure to keep the area and the powder itself dry.

Moreover, you will like the fact that this product works fast. The first roaches will die within 72 hours after they come into contact with the product. In addition, we liked the easy application process. All you have to do is shake the product before opening it. Then, use the puffer with the straw that comes with the product. In this way, you can reach even far and difficult to reach zones.

This product is so effective because it contains specific attractors that were proven to be the very best choices with roaches. This will lure them to come out of the places where they are hiding.

If you wonder about the product regulations, we can say that this boric acid-based roach killer is EPA-registered. It is made in the USA and suitable for use in objects with people and pets.

You can apply this powder behind the refrigerators, cabinets, along with the baseboards, along with the pipelines, as well as in cracks. For the best results, you must make sure that the powder stays dry during the whole time.

In the end, let’s explain how this product actually works. Boric acid interferes with the digestive system of these bugs and clings to the outside of the roach as well. This helps the propagation of the colony extermination.


  • Easy to use.
  • Non-toxic.
  • Based on boric acid.
  • Fast results.
  • Prolonged activity.


  • Shipping of this product is limited only to selected countries.

Final verdict

If you are looking for a non-toxic product based on boric acid that is in form of powder and attracts roaches very quickly, this powder from HARRIS is the best choice. You will see the first results within 72 hours and the effects will last up to several weeks.

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5. Combat Roach Killing Bait, Large Roach Bait Station, 8 Count (780059/41913)

This product is very good for different types of roaches, especially the big ones. This is a large bait itself. It is very effective. In addition, it contains a powerful active substance called Hydramethylnon.

This product is very easy to use. All you have to do is place it to the locations where you noticed the roaches. Also, place it in the kitchen, bathroom, and all dark places, especially those that are attractive for the hiding of these stubborn bugs.

You will be happy to know that this product doesn’t require any activation process and that it doesn’t leave a mess. The package contains 8 bait stations. Another advantage of this product is the fact that it is child-safe.

Moreover, this roach killer is versatile and you can use it for other types of insects and pest as well. Namely, it will destroy waterbugs and palmetto bugs. Most importantly, it is a long-lasting solution, as this product does not kill the adult bugs only, but the nest as well. This means that your roach problem will be solved at its source!

Last but not least, this is a very affordable product. As a matter of fact, it is the cheapest solution on the market.


  • Very affordable
  • Versatile – good for other types of bugs as well
  • Destroys the nest and the adult roaches
  • Easy to use
  • No mess left behind.


  • Limited shipping options.

Final verdict

If you want a versatile, very affordable, and easy to use roach solution, Combat Roach Killing Bait is the best option. It is good, especially for large roaches. It is also useful for water bugs and palmetto bugs. This is a long-lasting solution, as it destroys the nests as well.

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Frequently Asked Questions

“Where should I apply the spray or liquid?”

You should apply the spray directly onto the surfaces where roaches are often seen, especially into the cracks, because these are their favorite places to hide. There are some other strategic places where roaches often hide, such as underneath the kitchen sinks, in the bathrooms and all other dark and humid places. You should spray the product along the pipelines, especially around the cracks where the pipes enter the walls.

Don’t forget other dark places in the kitchen and the bathroom, such as under large appliances, including the stove, dishwasher, and the refrigerator, as well as behind the kitchen cabinets. Similarly, spray the product under the cabinets in your laundry room as these humid zones are the favorite living environments for roaches. Don’t apply the product on baseboards.

“Why the roach doesn’t die immediately if I spray it with the roach killer product?”

If the roach doesn’t die after you sprayed it, there are two possibilities. Either your spray is not suitable for the type of the roach (there is German and American roach, as you already know), or the spray you are using is designed to provide a slow kill.

You should wait for a few minutes, or up to one hour for them to die if your spray has an instant effect, and wait longer if it is a slow-kill product.

“What are the signs that I have roaches in my house?”

If you doubt that you have roaches in your house, but you are not 100 % positive, look for the following signs. There are clearly visible roach droppings around your kitchen, bathroom, and other humid places. You will also notice an unusual odor you hadn’t noticed before. There are also smear marks and shed skin. If you look carefully, you will see the ootheca – roach eggs.

In advanced stages, you will notice even damage caused by these awful bugs. People usually notice chewed packaging. Moreover, you will see the roaches or their dead bodies. You should check your kitchen, bathrooms, laundry rooms, and basements for these bugs.

“How do I prevent roaches?”

You should know what attracts roaches in order to be able to prevent them from coming to your home. First of all, you must know that food and water, as well as places to hide – a secure shelter, is what they are looking for.

You should cut the access to food, especially garbage, liquids (spilled food and stains on the floor), food residues, etc. You must keep the food in clean packaging. Make sure you keep your food in places designed for food storing. Practice eating your food in one place, one room, be it dining room or the kitchen, instead of eating in different rooms.

Also, you should eliminate all kinds of places that resemble cracks and “caves” – good places to hide. This implies piles of newspapers and things you don’t regularly use.

Last but not least, increase the level of hygiene and improve the overall maintenance of the property, apartment, building, house, etc., which will help prevent roaches from entering your place.

Final Words

We believe that you now know everything you need to successfully get rid of these boring and disgusting insects. We aimed to provide a comprehensive roach killer guide and review of the five best products currently available on the market.

If you follow the manufacturer’s instructions to the letter and take all roach prevention measures, you should not experience this unpleasant problem anymore.

The most suitable product

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