7 Best Roach Killer Products (Updated 2021)

In this post, we’ve featured 7 of the best roach killer products for home and outdoor use. Some of these cockroach killers are more suited for indoor applications (i.e within the house) while others are more ideal for outdoor use (i.e garden and lawn). If you are wondering what’s the best roach killer, be sure to check this list out.

Cockroach killers generally come in two forms of applications:

  1. Gel-based poison – usually works in the form of bait
  2. Liquid-based insecticides treatment – applied by spraying mixed solution

Some are newer while most of them have been in the market for a while and have proven to withstand the test of time. Improving the formula to beat the evolution of the immune system of the roaches. So, if you are looking at how to get rid of roaches without an exterminator, read on:

Best Roach Killer Products


Advion Syngenta Roach Gel Bait (Editor's Choice)Bait Check Price
2Combat 12 months Cocroach Killer Bait StationBait Check Price
3Black Flag Roach Motel TrapTrap Check Price
4Talstar Pro Jug Roach Killer (Editor's Choice)Insecticide Check Price
5Demon Cockroach Killer insecticideInsecticide Check Price
6Vendetta Roach Gel Bait InsecticideBait Check Price
7Suspend SC Insecticide Roaches Professional Pest ControlInsecticide Check Price
8Spectracide Indoor Roach Control FoggerFogger Check Price

Here are the 7 best roach killers:

1) Advion Syngenta Roach Gel Bait Killer

The Advion Syngenta Gel Bait is a gel bait made with non-repellent active ingredient developed to overcome gel bait-aversion in tough cockroach populations.

It targets all cockroaches’ species including the German, American, Australian, Smoky brown, Brown-banded and Asian roaches.

How this roach killer works:

The roaches feed on gel bait and bring it back to the nest and share with fellow roaches, which in turns shares the gel with other roaches, eventually killing the nest with this domino effect.

  • Potential to kill the entire roach nest
  • Performs well on major cockroach species
  • Works on both adult and baby size roaches
  • Safe for use in food-handling establishment
  • Works well on ants too
  • Dries up relatively fast depending on gel placement
  • Chances of roaches not taking the bait.

How to use:

  • Squeeze 1 pea size droplet every 5 inches where roaches are commonly sighted at home. Roaches love humid area like under the sink.

Pro tip 1: Make sure you don’t leave a layer of any spray insecticide before applying the gel as it might keep the roaches away.

Pro tip 2: place gel on a layer of plastic or tape so that it’s easier to clean and reapply.

>> Best Roach killer for home

2) Combat 12 months Roach Killing Bait, Small Roach Bait Station

The Combat’s roach killer bait is designed to attract and kill small roaches (like the German Roaches) in hours and prevent them from coming back for up to 12 months.

Contains powerful insecticide formulation, Fipronil, which provide quick results.

How it works:

Similar to the Advion Syngenta Gel Bait, roaches enter the bait station, consumes the baits and take some with them back to the nest to share with fellow roaches; killing others and destroying the nest.

  • Easy to use and needs to activation
  • Children friendly with unexposed bait
  • Lasting use of 6 to 12-month effective period
  • Targets the nest to eliminate the source of the problem
  • Not ideal for hard to reach areas*

* Opt for the Bait strips version for hard to reach areas instead

How to use?

  • Simply place individual bait stations in areas where roaches are commonly sighted.

Tip: Not to use in conjunction with roach spray as that will prevent roaches from going near bait

3) Black Flag Roach Motel Insect Trap

>> Best roach Trap

The Roach ‘Motel’ by Black Flag uses the same concept as most roach traps in the market but is designed to hide the dead roaches (or any other dead insects) from view.

Not just hiding it from users but also from other roaches (and insects) attracted to the trap. The box reads the tagline “Roaches check in….but they don’t check out”…

And here’s how:

How it works

The Roach Motel works by attracting cockroaches into the trap using a formulated attractant. The roaches will be stuck to the powerful glue adhesive once they are inside.

This roach trap can stay effective for about 2 to 4 months before it needs to be replaced. Once full, simply throw the trap away without having the need to pick up dead roaches around the house.

  • Cheap and effective
  • Designed to hide trapped/ dead roaches from view
  • Last for up to 4 months
  • Works on other bugs like spiders, scorpions and water bugs
  • Easy to set-up and clean after use
  • Not as effective for bigger sized roaches like the America Roaches
  • Might smell when roaches trapped and died inside
  • Sticky pat gives out mild smell

How to use?

  • Remove trap from wrapper and place at wall corners, in cabinets, under sinks and behind appliances (i.e. the refrigerator & washing machine). Basically wherever roaches have been sighted or potential places where they might live and breed.
  • Allow 3 to 4 days for bait to work. If trap remains empty, change the placement spot try and monitor.
  • When trap is full, flip trap over to expose fresh sticky adhesive. Discard when both sides of the trap is full.

Tips: Should you find the roaches not attracted to the bait anymore, simply try switching with M&Ms or Peanut butter.

Note: Avoid contact with the adhesive inside as it is very sticky. If any adhesive gets on skin, rub it with vegetable oil and wash off with soap and water. Repeat if needed (the Roach Motel is pesticide-free, hence, it’s nothing to worry about).

[May: Yes we know this is a roach trap and not a killer in the sense where it kills them directly. Here’s the deal, once the pests are trapped, you can either spray insecticides over them or simply leave them to die of starvation! How’s that for a ‘killer’ product! ROARRR]

4) Talstar Pro Jug Insecticide Killer

The Talstar Professional Mulit-Insecticide(formally known as Talstar One) is widely used by pest control professionals and kills over 75 pests (namely roaches, spiders, earwigs, mosquitoes, ticks, termites, ants, fleas and millipedes).

It has a long residual that will last up to three months after spraying and can be used both as indoor and outdoor pest control as it doesn’t break down easily with rainfall.

How It Works?

Talstar Pro contains an ingredient known as bifenthrin, a synthetic pyrethroid that works by disrupting the insect’s nervous system causing a weakened state followed by death.

This residual active ingredient is picked up by the bugs when they come into contact (instead of consumption). As such, Talstar Pro does not provide instant kill but is thorough in getting rid of the roaches.

  • Can be used for both indoors and outdoors
  • Odorless and leaves no stains
  • Non-irritating to the skin
  • Pet safe when dry
  • Can be used on over 75 insect pests
  • Product can be too strong
  • Requires a 1-gallon sprayer to apply

How to use?

  • If you are using a container, unscrew the measurement chamber cup and induction seal. Tightly screw cap back on and tilt the container slightly till the liquid flows into the measurement chamber. Pull off measurement cover and let enough amount into the equipment for application.
  • Remember to read the label before use. A simple gauge is that 1 quart is equal approximately to 32-96 gallons. Alternatively, use the Squeeze-N-Measure Container for a more accurate gauge.
  • One quart is equal approximately to 32-96 gallons. Alternatively, use the measurement container for a more accurate gauge.

Tips: After application, allow at least 30 minutes before allowing kids or pets into treatment area. For outdoor application, wait at least 24 hours before watering or expected rainfall.

5) Demon WP-WSP

The Demon WP is considered a long lasting residual insecticide as every application can last up to 3 months. It’s odorless and can be used for both outdoors and indoors.

If you have been looking for a ‘knock-out’ roach killer, this is it. The Demon WP is designed to give instant kill to the roaches the minute they come into contact.

Tip: Shake the mixed product often as it is being sprayed to ensure consistency in effectiveness
Note: Be careful when spraying product around dark colored surfaces (i.e wall, cabinet, furniture) as it can leave a stain.

How It Works?

The active ingredient found in Demon WP controls and decreases the number of pests. Pests consumes the insecticide when they ingest it while grooming themselves and a wipeout occurs when the roaches bring it back to their nests.

  • Long-lasting residual control
  • Works on bugs other than roaches
  • Convenient packaging
  • Easy-to-mix formula available in water-soluble packets
  • Need to mix solution before application

How to use?

  • Enclosed in convenient packets, mix contents with water before transferring into hand-held or power-operated applications.

Things to note:

  • The water-soluble contents dissolve very quickly when in contact with moisture so keep them in a safe dry place before using them.
  • Demon WP can be added to other types of pesticides unless it is not recommended by the other brand.
  • For outdoor use, use hand-held or power applications and spray on surfaces such as buildings and other hot spots such as windows and refuse dumps.
  • Recommended sprayer includes Chaplin 1 Gallon.
  • Wear dry gloves when handling the water-soluble packets.
  • Be sure to store away unused water-soluble packets in original foil envelopes to minimize its exposure to moisture.
  • Be very careful when handling this product and keep children and pets away.
  • Mix only amount of application volume required for each use.
  • Do not store dilution in application equipment overnight.

Note: Demon WP leaves a white powdery film that is especially noticeable on dark surfaces.

6) Vendetta Roach Gel Bait Insecticide

Similar to Black Flag, Vendetta is a gel-based insecticide designed to provide spot, crack and crevice application for curbing the roaches especially indoors.

Easy to apply, the gel attracts different types of roaches, which makes it a convenient option. A great feature is the long shelf life of three years that will make it a reliable option for you for a long time.

Vendetta can be used in cases where sprays are not the preferred choice.

How it works

Vendetta gel contains abamectin B1 which lures the cockroaches to it.

Abacmectin, the result of natural bacteria fermentation, is not as prevalent as other forms of insecticide ingredients. Besides getting rid of roaches, it is largely used to control pests in crops.

  • Shelf life of up to 3 years (longer than similar bait gels)
  • Applications effective up to 30 days
  • Easy to use
  • Dispenses smoothly and easily (without mess)
  • Attracts both bait-averse and non-averse cockroaches
  • Doesn’t come with Plunger or bait gun

How to use?

  • Simply use the syringes that are provided and use the plunger to pump the gel.
  • Detach the cap from the nozzle and graze the applicator to the desired surface and push the plunger to fill up cracks and crevices. Remember to recap the dispenser after each application to preserve the effectiveness.

Pro-tip 1: Avoid areas that were treated with insecticide as this would cancel out the effectiveness of product.

Pro-tip 2: Multiple small traps are more effective than large covered areas.

>> Also see the list of Best Roach Baits Gel


  • Use in areas inaccessible to children and pets
  • Avoid applying gel on carpets, fabrics or clothing as it may cause staining.
  • Do not use residual insecticide sprays on or near Vendetta as this may cause bugs to not fall for the bait.
  • Avoid using Gel baits once roaches start to disappear from your house. Gel baits are not designed for use as preventative measures as they may attract roaches that were otherwise not in the area.
  • You do not have to worry if the bait will erode away as it is proven to stick on non-greasy and non-dusty surfaces.
  • About once a month, monitor to see if the treatment is used up.
  • A few applications might be needed to eradicate a wholly infested home.

Application Rate:

  • Determine if the area has light or heavy infestations of these pests.
  • For light areas, about 4 to 6 bait traps per 100 square feet are suggested while for heavy areas (yikes!) up the number to 12 to 24 bait traps per 100 square feet.
  • Each trap that is about 3 millimeters should use up 0.25grams of solution.

[May: If it is your first time trying out this product, we recommend using a something sharp (i.e a screwdriver) to get product out of the tube before application. Should gel bait proves to be effective in your situation, invest in a plunger or bait gun.]

Tip: It is best to rotate different brands of gel bait every few months for best results.

7) Suspend SC Insecticide – Roaches Professional Pest Control Product

With long staying power, the Suspend SC roach insecticide by Bayer can last up to 3 months after initial application. It does not leave residue, is odourless and can be used indoors and outdoors (i.e. on turfs and lawns).

What sets this roach insecticide apart is that it is licensed for use in restaurants and areas where of food manufacturing, processing and serving.

A spraying tool such as one-gallon sprayer is recommended when using the Suspend SC.

How It Works?

The Suspend SC contains an active ingredient called Deltamethrin, which poisons the roaches’ central nervous system, where their nerve cells become overly excited which causes paralysis and eventual death.

  • Suitable for both indoors and outdoors
  • Pet-friendly formula
  • No unpleasant smells or stains
  • Approved for use in food-handling establishments
  • Easy application process with squeeze and pour container
  • Risk of affecting bee pollination

How to use?

  • The Suspend SC is a liquid concentrate that has to be diluted before application. Ensure that the formula is well mixed before spaying.
  • To ensure long-term sustained effectiveness, re-apply after every 21 days. Focus at areas where the roaches breed, using 0.25 to 1.5 fluid ounces of formula in one gallon of water across an area of 1,000 sq feet. Increase intensity depending on severity of situation.

A helpful tip would be to use the half-half method. Pouring half the amount of water into the spray tank, then the Suspend SC, before the remaining water. This will help get rid of the excess foam.

Also, this insecticide is best used with a hand pump (check out the Chapin 1 gallon pump sprayer). Allow time for application to dry before allowing pets and children to access the area. For outdoor application, apply at least 24 hours before the weather is forecasted to rain.

Storage-wise, avoid direct sunlight and extreme temperatures to ensure a long shelf life. Certain surfaces, such as concrete may require repeated applications.

Note: This product is not suitable for use on edible vegetation.

8) Spectracide Indoor Roach Control Fogger

The Spectracide Bug Control Indoor Roach Fogger works by producing fine and penetrating pesticide mist that kills roaches on contact and force roaches out of their hiding place.

It’s formula is non-staining to clothes, fabrics, bed sheets, bed linings, blinds, carpets, wooden floor or wooden furnitures.

Note: Do not use fogger in enclosed spaces (i.e in the closets or cabinets), and avoid using foggers in rooms with 5ft x 5ft or smaller size (instead, set fog in another room and allow the mist to enter).

>> Available in these sizes: Pack of 1 & pack of 4

  • Non-staining formula
  • No lingering odor
  • No wet residue
  • Kills on contact

Final Thoughts

Nothing freaks us out more than cockroaches, especially the ones that take flight!! (Double exclamation marks to enhance the emphasis).

[May: Spider and Lizard freaks the hell out of Judy too!]

We’re sure you will agree with us when we describe these roaches as:

A Face That Only a Mother Will Love 

Without a doubt, Cockroaches are one of the toughest pests to get rid of. They are persistent and simply hard to kill. They appear to have no fear or annoyance towards most insect repellents out there.

After a while of trying to keep them away by eliminating exposure of food and drink in the open, it’s time to take the solution to the next level and take matters into our own hands.

It’s time to put our game face on and go on a killing spree!

It’s nothing to do with violence or cruelty. Getting rid of these hard-shelled pests is essential to protect our family.


There is no single best product to kill roaches, it depends largely on the cockroach infestation you have at hand (i.e how serious is the problem, where’s the affected venue). For heavy infestation, invest in a stronger and industrial based roach killer like Talstar, Demon and Suspend. In cases of smaller infestation (especially in residential or indoor areas), consider options like baits and gels to attract the cockroaches to carry the poison back to their nests.

A roach trap should be sufficient if you just have a few night crawlers to deal with in areas where food is present. It is important to remove baits once the roach problems have improved or gone away to prevent attracting more roaches to the vicinity. Use roach repellents in this case.

>>Related Article: Catch Cockroaches with these Traps

Sometimes a product can have tons of positive reviews but doesn’t work for some based on factors like environment, the immunity of the roaches your are dealing with, the way we apply the product and even the batch of the product you recieve.

[May: We’ve had some rare experience where a product works the first time but doesn’t work the second. We suspect it could be due to the roaches have grown smarter or have developed immunity to them. Either way, when that happens, we always ask for an exchange and try again as sometimes; it could be due to us getting a faulty unit].

Now that you know what are the Best Roach Killer Products in the market. It is time to take action against the creepy crawlers! Choose the cockroach killer based on your current situation, budget and preference. Leave a comment to let us know if you’ve tried any, and whether they worked for you.