Does Demon Max Kill Roaches? The Best Tips and Tricks

If you’ve ever wondered, “Does Demon Max Kill Roaches?” then you’ve come to the right place.

In this blog, we’ll explore the effectiveness of Demon Max as a roach control solution, sharing insights, tips, and expert advice to help you combat these unwelcome intruders once and for all.

Does Demon Max Kill Roaches
Does Demon Max Kill Roaches? The Best Tips and Tricks

How to kill roaches with Demon Max?

The effect of demon max can last for about three months, making the chemical excellent for killing roaches attacking your indoor space. 

Before applying demon max to kill roaches, assemble a few vital things such as a sprayer or mist blower, a mask, gloves, and a long-sleeved shirt and long pants. Although the product poses little health risk through inhalation or contact, take precautions to avoid exposure. 

>> Read more: Roaches in coffee: How to Keep Them Away From Coffee?

A lung inflammation due to Cypermethrin can lead to severe symptoms, including sneezing and coughing. Thankfully, there are still no reported deaths linked to demon max exposure.

Because demon max is not a natural chemical, do not spray it around or inside a beehive unless you want to get rid of them. The product is also highly harmful to fish and should not be applied near or inside your pond or water source.

Here’s how to use it:

The insecticide will be safe for you, your family, and your pets as long as you use it according to the manufacturer’s instructions on the label.

Avoid exposing people or animals to the areas you are treating or have treated with demon max for a couple of hours until the effect has faded. 

Choose the application method and the area of treatment

Consider and determine the process of using the chemical and the total area for treatment. Calculation of the square footage of a site involves measuring and multiplying the length by width. 

Then, consider the square footage measurement to determine the quantity of the demon max enough to do the job. Generally, 0.5 to 1 fluid ounce of demon max per gallon of water can treat an area of 1,000 square feet.

Mix the chemical with water

If you use a hand pump sprayer, fill it midway with water before adding sufficient volume of the insecticide and filling it with more water until full. Tighten the lid of the sprayer and shake the sprayer to mix the solution thoroughly.

Solution application

Apply the solution around your home, particularly in areas roaches visit. When killing roach eggs, spray the solution after crashing or splitting the tough outer eggshell.

The poison works well through ingestion and not contact. Still, if a roach comes into contact with demon max, it may look alright until it goes back to its nest and begins cleaning itself. As a result, it consumes the poison outside the body, which at last kills it. 

Healthy roaches may eat dead roaches or roach feces if there is no other food source. Therefore, a healthy insect eating a poisoned insect or droppings will also be harmed and die.

Areas to apply the demon max solution

If you are spot or broadcast spraying, the pressure setting should be low to allow even coverage. Perform spot spraying near structures and entry points for cockroaches, like air ducts, cracks, crevices, doors, and windows. Other locations to apply the solution include baseboards, inside cabinets, and under sinks.

Stay clear of using demon max in areas you store or prepare food. Moreover, do not apply the roach killing treatment during the rainy season or when it is about to rain so that there is no decrease in its strength. 

Rinse yourself

Wash well with soap and water after handling the chemical. Repeat the procedure at least every month or so to maintain control of roaches.

How long does demon max last after mixed?

Demon max will last for one day (24 hours) after mixing with water. The contact of the chemical with water for an extended period reduces its effect or potency. In addition, demon max does not entirely mix with water as a wettable powder. 

Thus, with time, it gradually separates itself from the water to cause the blocking of your sprayer’s nozzles and hose. Use the resultant demon max solution immediately and rinse the sprayer well after every use. 

>> Read more: Will Lysol Kill a Roach? The Surprising Answer Revealed!

How long does it take for demon max to kill roaches?

It takes two to three days for demon max mixed appropriately to kill roaches that come into contact. However, if the roach infestation is heavy and your home’s sanitation is terrible, applying the solution to eliminate the problem may take longer, from six weeks to a few months. 

Stopping the breeding and laying of eggs by roaches may not be possible only using demon max. Generally, roaches, notably the German roaches, are challenging to kill, and the infestation may be severe. Apply a combination of methods, including an insect growth regulator and cockroach bait gel. 

A few weeks after the application of demon max, expect a significant drop in the number of roaches attacking your house.

>> Read more: How hard is it to kill a cockroach? Secrets to Their Survival & Defeat!

Is Demon Max good for german roaches?

Demon max is good for german roaches. German roaches are notorious for being difficult to control, prevent, and kill. The cockroaches breed and spread faster and can survive for so long without much to eat or drink. If you try to kill german roaches, they will not go down without a brave fight.

As per various studies, the active ingredient Cypermethrin has a devastating effect on bugs. But since German roaches continue to adapt and develop strong resistance against insecticides, try killing the bugs, their eggs, and larvae with a combination of treatments. 

Apart from demon max, use gel bait, vacuum cleaner, insecticidal dust, and an insect growth regulator. 

For example, using an insect growth regulator makes it difficult for roaches to multiply and infest your space. Consider that the croton bug’s egg case contains nearly 30 to 40 eggs.

What to do after roach treatment with Demon Max?

After killing roaches with demon max, prepare the home to be unwelcoming to pesky insects. Vacuuming areas with dead and dying roaches may discourage the attraction of other bugs from the outside by smell.

Cleaning makes your house free of unpleasant cockroach odor, droppings, eggs, and dead bodies. Sweep and vacuum your floors every couple of days, necessary for removing potential meal sources for roaches.

Perform a thorough inspection of your different rooms like the bathroom, laundry room, and kitchen, and do away with any potential roach food sources. Store your food and cooking ingredients in airtight containers and put your garbage in a can with a tight lid. 

Find and remove water sources, such as leaking pipes and pools of water and make sure roaches do not get a ride indoors by hiding in bags and suitcases. This is also a better way of killing roaches without an exterminator at home.

Close all property entry points. Preventing a roach infestation will be a big challenge if you do not know how they got into your house in the first place.

It is even harder to locate entry points since cockroaches have bodies that can flatten and go through highly tight spaces. Therefore, it makes sense to search and seal crevices and cracks around your doors and windows.

In conclusion, getting rid of a roach infestation yourself is always a tall order. It is best if you leave the task to a professional. A professional roach remover can assess your current situation and explain how long it may take for roach trouble to be a thing of the past.


In this blog, you have learned the answer to the question: does Demon Max kill roaches? You have also learned how Demon Max works as a powerful and long-lasting insecticide, and how to use it effectively.  

We hope you found this blog useful and informative. If you want to learn more about roaches and how to deal with them, check out our other blogs from Pestweek. 

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