To get rid of cockroaches, you hire a pest control expert. However, roaches can sometimes still be present after extermination. So, why are you still setting roaches after the treatment?

Cockroaches do not die promptly after extermination, and it is common to see more cockroaches than usual. When a cockroach is exposed to the treatment, it returns to its nest and spreads the poison to other cockroaches. So, it causes the concealing cockroaches to come out of hiding for a few days before dying off.

When it comes to pest control, spraying is one of the most used approaches. Because ready-made products are already available on the market, it is easier than other ways.

Is It Normal To See More Roaches After Extermination?

You might expect to see cockroaches roaming around for a few days after the exterminator comes. Cockroaches are tough and dirty pests. They have a solid resilience to most pesticides and are extremely difficult to eradicate. To get rid of these pests, you’ll need to employ a pest control firm with much experience and training.

Here are the following reasons why you may see more roaches after treatment:

Cockroaches may appear soon within a few days, depending on the pest control approach utilized. The sprayed cockroaches, on the other hand, may not come out of their nest at all because they’re already deceased or recently deceased.

Cockroaches are gaining resistance to particular pesticides. If the poison you use has been exposed to a previous generation, the next generation may be able to withstand it.

With this in mind, you should determine whether the cockroaches are dead or require a new pesticide. To give the first treatment time to work, you should only reapply the chemicals after two weeks.

Why Are There More Roaches After Extermination?

Cockroaches in your home don’t magically multiply after you’ve had them exterminated. The ones you’re seeing were in your house, to begin with. They are now being phased out due to the pesticide’s detrimental consequences.

Even during the day, after pest control methods, you’ll notice more cockroaches coming out. The cockroaches will be moving slowly as if they are dying. The number of dead cockroaches should increase as the days go by.

Cockroaches are becoming increasingly resistant to herbicides and insecticides. As a result, you may need to combine it with other methods, such as keeping your living area clean and employing cockroach traps to complete the task. However, before dismissing the treatment as a failure, you should give it enough time to work.

Do Exterminators Really Get Rid Of Roaches?

Insecticides are from neurotoxic chemicals that cause a “knockdown effect” when a cockroach ingests or absorbs them via their skin. The pesticide used is a major factor because you need to consider if it is more effective than others. It helps getting rid of roaches after extermination.

Insecticides containing diazinon and bendiocarb are inefficient in controlling cockroaches in apartments, according to Economic Entomology. These cockroaches were 3.4 times more resistant to diazinon and bendiocarb sprays, respectively.

Look at the label to see the formulation’s active neurotoxic ingredient. According to the Agency for Toxic Substances and Disease Registry, insecticides containing diazinon and bendiocarb have minimal efficacy and are hazardous to human health. As a result, you should ask your Pest Control team to opt for safer alternatives such as:

After spraying your home, an infestation may appear to worsen. Cockroaches will begin to crawl about your home in more significant numbers. However, the presence of more cockroaches after spraying indicates that pest control therapy is effective.

As previously said, the chemicals take time to function. Cockroaches will be forced out of their nests and hiding places due to the treatment, even during the day when you least expect them to appear.

Cockroaches crawling around throughout the day may give the impression that the infestation is worsening. However, it merely goes to show how desperate and sick the cockroaches have become after emerging from hiding.

How Do You Know If Roaches Are Gone?

You can look for some indications if you want to make sure if there are no roaches after extermination. First, check for the same symptoms you did when you initially suspected a roach infestation. The following are definite roach indications to be aware of:

Observing them physically slithering through counters, walls, and floors 

It is one of the most common and indisputable symptoms that a cockroach has taken up residence in your home. Roaches avoid coming out during the day as much as possible. Cockroaches are most commonly spotted in the evening. If you encounter one during the day, the infestation may have been going on for a while. In addition, it has progressed to the point where you need to take action as soon as possible.

It has an unpleasant odor

I’m not sure whether you agree, but I’m sure everyone recognizes the stench of a cockroach. Cockroaches leave a lasting, musty odor on anything they come into contact with. If a cockroach crawls on a plate, cutlery, or glass, you will immediately smell it as it gets close to your nose. If you utilize anything that a cockroach crawled on, it might leave an unpleasant flavor in your meals or drinks.

Observing roach droppings or excrement

Cockroaches leave behind brown or black droppings wherever they go. The size of the waste varies according to the roach species and can resemble a speck of pepper, coffee grinds, or oval pellets. A large number of feces indicates a massive roach infestation.

Cases and eggs of roaches

Roaches have a reputation for being aggressive breeders. They multiply quickly, so if you detect an oblong, brown casing that resembles a coffee bean, throw it away right away. You might assume there’s no need to be concerned because you’ll only encounter one of these once in a while. But the truth is that this tiny bean-like coating is covered in roach eggs.

How Long Does It Take For An Exterminator To Get Rid Of Roaches?

Flushing out all of the roaches takes roughly two weeks on average. In some cases, severe infestations may necessitate a second treatment. However, a professional exterminator should inform you whether this is necessary.

The magnitude of the infestation, the therapy, and the formulas employed all play a role. Some infestations are severe enough to necessitate multiple follow-up visits. As the homeowner or tenant, you must follow the Pest Specialist’s instructions to obtain the best results from the treatment.

Continue to conduct minor cleaning, keep eating places clean, don’t leave food or food trash out, and keep sinks and bathtubs dry, as described above. It will take them longer to perish if they can locate food and water sources.

How Do I Get Rid Of Roaches Forever?

Use of glue strips, setting bait stations, and caulking all entry points are some ways to get rid of roaches forever. But if the issue has progressed into a more intense situation, then you’ll probably need the help of expert pest exterminators.

Use Glue Strips

Using glue strips to identify roach problem locations is a good idea. The trap’s scent attracts roaches, and the glue catches them after they tread on the strip. Place store-bought adhesive strips in any area where you’ve witnessed roach activity, such as behind the refrigerator or under the sink, for optimum results.

Set Bait Stations

What kills cockroaches in a matter of seconds? Bait stations are a type of bait station. These bait stations are typically long tubes that you can place anywhere you see roach activity. The bait’s scent attracts roaches, who subsequently consume the poison. As soon as the cockroach returns to its original place and dies, the other roaches consume it, passing the poison on to the rest of the colony.

Caulk all Entry Points

While adhesive strips and bait stations can help you get rid of roaches, they won’t help if new roaches keep coming into your home. You can use caulk to seal gaps and possible entry locations with this in mind. It includes all gaps between walls or tiling, worn-out weather stripping, and cracks in door and window seals.

Hire a Pest Control Professional

Hire a professional pest control company to get rid of your roach infestation for good. Experienced exterminators know how to find and eliminate roach infestations safely and effectively without endangering your children, pets, or home.


Expel Exterminators LLC is a one-stop-shop for all of your pest issues. Cockroaches, mosquitoes, flies, rats, mice, bed bugs, venomous spiders, and moths are just a few of the pests that can be controlled by Expel Exterminators LLC.

If you ever need to know more about extermination, you can always count on us to provide you with the best information about it. We’ll make sure to get rid of roaches after extermination.

Expel Exterminators LLC

3622 Tuers Road San Jose, CA 95121

(408) 417-1545

Leave a Reply

Your email address will not be published.