Cockroaches evolved with the dinosaurs, and in their natural habitat, they are actually a very necessary insect in the food chain. It is when they invade a house, home or apartment that they become a nuisance. Without any natural predators, cockroaches will quickly overrun any dwelling, and they will particularly flourish in areas that are unkempt with food stuffs left laying about, grease from cooking that is not cleaned, and crumbs that are left on counters or that have not been swept up from the floor. That type of environment is a cockroaches paradise. And before you can kill them, you have to clean up their food source, or they will continue to re-infest the area.
Cockroaches are notorious for their hardiness, so cockroach killers on this list must be 100 percent effective from the get-go. Price is no object here since pest eradication has no cost limitation. Ease of use will come into play, but the best cockroach killer will be quick and the most effective to rid your house or home of cockroaches ASAP. Just remember, baits and ingredients in cockroach killers are also toxic to kids and pets, so care must be taken to hide baits in places that are hard to reach and hard to get at.
Bayer Maxforce FC Magnum Cockroach German Roach Pest Control Gel Bait is so effective, that a lethal dose will be consumed in one feeding, and if the gel merely comes into contact with a roach, it will still cause its demise. There is no other roach killer better than this. Read Full Review
If you want the most effective cockroach killer, bar none, than Bayer Maxforce FC Magnum Cockroach German Roach Pest Control Gel Bait is the one for you. It works in two ways. When a cockroach feeds on it, just one feeding will kill the roach. However, if a cockroach merely comes into contact with this gel, it will absorb enough of the toxins, through its body, to cause its demise. If the roach feeds on it, it will leave feces that are also toxic to any other roach that comes into contact with them. The active ingredient is fipronil, a nervous system disrupter. The fipronil gel is injected under cabinets, cupboards, along roach runs in dark places and anywhere there might be a roach gathering. It won't dry out for up to 1 year, and it will give continuous protection during that time.
Harris Boric Acid Roach Powder with Lure is infused with a food attractant to make it irresistible to cockroaches. It kills by either consumption or by sticking to their bodies where it is absorbed through their skin. This is a time tested and effective means of roach control. Read Full Review
Boric acid has been one of the most often used and effective ways to rid your dwelling of cockroaches, and Harris Boric Acid Roach Powder with Lure has a food attractant added to their boric acid to make it even more effective. It works in two ways. The boric acid is poisonous if ingested, but it also will be absorbed through the skin if walked on. It comes as a powder and is "puffed" or blown into known cockroach habitat areas. The food attractant, usually grains of sugar or flour, ensure that the roach will eat some. Boric acid is time tested and effective, but it is toxic to kids and pets. Always make sure it is applied in areas that are not readily accessible to either, and this boric acid formula also comes in tablet form to best suit your needs.
Combat 41913 Source Kill Roach Killing System is a bait station that is easy to place and is relatively safe to use. It is filled with a metabolism altering substance called hydramethylon, which can be carried back to a roach nest and kill those that ingest it there as well. Read Full Review
For one of the safest roach killing methods on this list, try Combat 41913 Source Kill Roach Killing System. It uses hydramethylon as its active ingredient, which is distributed in covered bait stations. Although not tamper proof, it still makes them more difficult to accidentally ingest and therefore, they can be placed more out in the open. Lay them behind toilets, on top of counters and places where roaches like to congregate. Hydramethylon essentially breaks down a roaches metabolism, It is a slow kill ingredient that allows the roaches to take particles back to the nest where others might feed on it and also die as a result.
Raid Max Roach Killer is a spray on synthetic pyrethrin that is mixed with a petrochemical oil for lasting effects. Simply spray where known roaches are known to congregate for long lasting control, or use it as a spot spray when you actually see them in sight. Read Full Review
From one of the most respected insecticide companies around, Raid Max Roach Killer kills roaches both on contact and for up to 6 months afterwards. It is made of synthetic pyrethrins, which are natural insecticide ingredients that come from the chrysanthemum plant. If spot sprayed on a living roach, it will die virtually instantaneously. However, the formula is infused with petrochemical oils which means the pyrethrin ingredients won't soon evaporate, and they keep on being effective for up to 6 months. This is not a bait, so a roach must physically come in contact with this substance for it to be effective. Spray heavily where there is known roach traffic, and when they come into contact with Raid Max, that's all she wrote!
Black Flag Roach Killing Chalk uses a synthetic pyrethrin as an active ingredient. It can be spread along known roach trackways or it can be used as a barrier between roaches and both food and water sources. Once they cross the line, they won't be alive to cross it again. Read Full Review
One of the most unique ways to eliminate roaches is Black Flag Roach Killing Chalk. You simply draw a line of chalk over known roach trackways, like where molding connects to a wall or floor, and when a roach walks onto the chalk, it will receive a lethal dose of the synthetic pyrethrin active ingredient. You can use this chalk to draw a barrier around foodstuffs or water supplies, forcing roaches to walk over it when they want to eat or drink. Once they cross the line, they'll never cross it again. It lasts for up to 8 weeks, is easy to apply and can be used under cabinets, around pipes, on baseboards and virtually anyplace where roaches travel.