How does the cockroach gel work?


Cockroach Gel

Insecticidal cockroach gel is considered one of the most effective ways to get rid of insects. It is conveniently applied to the surface, it has almost no smell, low toxicity to humans and has a fairly long period of action.

It is also important that the gel base provides strong adhesion to the surface, preventing the spread of the poisonous substance throughout the room, and it will not be difficult to remove the remains of the drug with an ordinary wet rag.

How does he act?

Despite the fact that now on the shelves you can find a huge number of a wide variety of gel-based preparations, their composition and principle of action are not very different from each other. Which one will be most effective against the mustachioed invaders? To understand this issue, consider the main ingredients included in the insecticidal gel.

Gel composition

Any gel from cockroaches has the following approximate composition:

  • insecticide;
  • fatty substance;
  • bait.

The main active ingredient is a contact or intestinal insecticide. It can be chlorpyrifos, hydramethylnon, fipronil, lambdacigalotrin or any other chemical preparation that has the properties of poison for insects. In the general composition, it occupies no more than 2% of all components of the gel. In this case, the stronger the poison, the less it is used. For example, cockroach repellent Brownie contains 0.5% chlorpyrifos, and Clinbait gel contains 2% hydramethylnone. It is also often practiced combining two insecticides in one tube. Thus, a higher effectiveness of the drug is achieved.

Gel insecticide
The liquid consistency of the gel is provided by the fatty substance present in its composition. It also prevents the drug from drying out after application, which ensures the long duration of the poison and its attractiveness to insects.

Bait is an essential ingredient in any insecticidal gel. With its help, it is possible to attract an insect. Often, they are aromatic substances - attractants.

Depending on the manufacturer, the gel may also include additional elements. For example, a bitter substance that prevents a child or pet from eating it.

Interesting fact! Despite the fact that cockroaches are equipped with sufficiently powerful jaws that can bite off a piece of dried bread crust, they still prefer food with a liquid consistency. Their preferences were taken into account when developing insecticidal gels.

Operating principle

The principle of action of the insecticidal gel is based on the spread of poison among the insect colony. The cockroach, which came to the smell of bait, eats the drug and goes to its nest, taking away particles of poisonous substance on its paws. Thus, the spread of the insecticide. After its death, the insect becomes food for fellow tribesmen, poisoning them.

Gels can be called long-acting agents, since you will not get a quick effect from them.However, this property provides a stable result, since the insecticidal substance slowly but surely spreads to the entire colony, including recently hatched larvae. The duration of such a drug is 1.5-2 months. after application to the surface. Insects begin to die within 1-2 days after eating the poisoned bait.
Compared to aerosol and powder preparations, the gel base has the following advantages:

  • long-term effect;
  • attractive to insects;
  • low toxicity;
  • ease of application to the surface.

Advice! In order to apply the gel on the vertical surfaces of walls and furniture and at the same time not to stain them, you can use masking tape. At the end of the validity period, it is simply deleted.

Mode of application

Gel from cockroaches is produced, as a rule, in a container having the shape of a syringe with a thin long nose. Such packaging provides the convenience of applying the drug to any, even the most inaccessible places. Some gel-like products can also be produced in tubes, for example, Global Gel Paste. We talked about its application in a separate article: Global gel paste is guaranteed to relieve your home of cockroaches.

Squeezing the contents of the syringe, the gel is applied in dotted lines to the baseboards around the perimeter of the apartment, as well as around the places where insects are likely to live. You can also apply the drug on vertical surfaces and walls, previously protecting them with adhesive tape or tape. The distance between the drops of the gel should be no more than 1 cm. However, it can be increased to save up to 4 cm with low infection of the apartment.

The gel remains active for 2 months. After this period, processing can be repeated. You should not use one drug more than two times, as cockroaches can get used to it. Care must also be taken when applying to avoid possible poisoning in the intestines and on the skin.

Interesting fact! Cockroaches can go without food for about a month. They suffer a lack of water more severely and die within a week. Therefore, in order for the effect of the gel to be more complete, it is necessary to block the insect's access to water.

Overview of the most effective tools

On the shelves you can find gel preparations from a variety of manufacturers. Let's consider each of them in more detail.

Gel "Brownie"

Gel Domovoy from cockroaches contains chlorpyrifos. This is a contact-intestinal insecticide that causes paralysis of insects when it enters their integument or inside through the digestive tract. The preparation also contains a gel-forming base, preservative additives and bait.

In appearance, the gel is a colorless viscous mass, practically odorless. The drug is available in tubes with a dispenser of 30 ml each. This syringe is enough for processing about 50 m2 area. The cost of one package does not exceed 40 rubles. Despite its more than affordable price, Domova relieves cockroaches quite effectively. It begins to show its effect already in the first day after application. After a week, you can notice a significant reduction in the population, and after a month you can forget about cockroaches. The drug has a residual effect for 2 months. After this period, processing is repeated as necessary.

Gel "Absolute"

Absolute gel from cockroaches also contains chlorpyrifos as a poisonous substance, however, it has a heavier packaging of 125 ml in a tube. This amount is enough for 150 m2 the area of ​​the treated surface. The color of the drug can vary from colorless to light brown. The consistency is viscous, able to maintain its structure for a rather long time. The cost of one package is from 80 to 130 rubles, depending on the region.

Apply the drug in a dashed line of 2 cm, alternating it with the same length of the untreated surface.Cockroaches die on 1-3 days after eating the bait, the gel retains its residual effect for at least 2 months.


According to the degree of danger, Absolute-gel belongs to the 4th class of toxic substances. It is allowed to use in children's and medical institutions. However, as with all toxic substances, care must be taken when handling it and make sure that children and pets do not accidentally swallow it. To do this, the drug is applied to surfaces in hard to reach places, cracks, cracks and under the baseboards. You can also squeeze the gel into pieces of paper and spread them over the room overnight.

Gel "Clean House"

Gel Clean house from cockroaches and ants can be purchased for 40 rubles. It is sold in a 35 ml tube. This amount is enough to process an apartment of 40 m2. With a large infection of the premises, the expense of the agent doubles.

The effect of the use of the drug becomes noticeable 2-3 days after application. At this time, you can see the corpses of dead insects and stunned by poison cockroaches crawling out of their shelters. An important point - it is necessary to block arthropod access to water, so that the effect of the drug is as effective as possible. Reprocessing may be required when the destruction of a large insect colony. It is carried out no earlier than 3-4 weeks after the first.

Clean house - a remedy for cockroaches that has the most controversial reviews on the Internet. He helps someone, someone writes about its futility. However, if you look at its composition, you can see that the active substance is all the same chlorpyrifos. And this is a fairly powerful insecticide that has proven itself over the years. The gel is produced in a syringe with a spout that is convenient for use. It is convenient to apply and easy to use.

Overview of the gel "Clean House":

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  • The crayon Masha doesn’t act on the cockroach at all, she tried to destroy it, it seems they multiplied even more

    Comment by: 08/15/2019 at 19:26

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