What are cockroach repellents and how to choose them?

The appearance of cockroaches in the house delivers a lot of unpleasant emotions - these insects carry pathogenic microorganisms and worm eggs on their paws, and the chitinous cover thrown off by them acts as a provocateur of allergic diseases and asthmatic attacks. That is why it is so important to start fighting them immediately. Modern industry offers many solutions, one of the most demanded is the use of a repeller.

Cockroaches are perhaps the most unwanted neighbors in apartments and houses. They are carriers of dangerous diseases and cause a sea of ​​unpleasant emotions. Moreover, they are distinguished by their vitality and high reproduction rate. If you do not take action, the colony will grow before our very eyes. The effectiveness of the fight against these parasites directly depends on the complexity of the approach. There are several main ways to eliminate uninvited barbel:

• dusts and pencils;
• bait;
• gels;
• aerosol sprays;
• scarers and traps.

The easiest way is to turn to the services of a disinfector. However, his work will cost a pretty penny. In addition, if cockroaches are crawling from neighbors, within 3-4 weeks after processing, you will again notice the ubiquitous Prussians in your apartment.

The use of chemicals also has its drawbacks.

Most of all products on the market exude a pungent odor and irritate the mucous membranes of the respiratory tract.

The use of insect repellants is not permitted in homes where children, pregnant women and people with allergic diseases live.

That is why many people opt for scarers. Of course, with a large invasion of cockroaches, this method of control will be ineffective. However, if the Prussians have just begun to attack the premises, it will scare them away and force them to look for other, more comfortable conditions.

The advantages of scarers include:

• noiselessness of work - thanks to this, a comfortable environment is maintained in the room, favorable for living, resting, working and studying;
• the room does not require preliminary preparation, as is the case with the treatment with chemical compounds;
• scarers are absolutely safe for people and animals, they do not cause diseases, do not provoke allergic reactions;
• drugs begin to act almost immediately, while giving a long-term effect.

The device is reusable. It operates remotely. Depending on the power, one repeller is enough to treat premises ranging from 50 to 200 square meters.

The modern industry offers different types of scarers. The most popular are ultrasonic and electromagnetic devices. Slightly behind them are sound emitters, electric and aquafumigators.

The most widely used are ultrasonic scarers. Although user reviews about them are contradictory: some admire the efficiency of its work. while others consider it a waste of money. However, most of the complaints about ultrasonic scarers are related to a lack of understanding of the mechanism of their work.The fact is that ultrasound does not destroy the Prussians, but only scares them.

In addition, some Prussians may not react at all to such a device, especially newly hatched juveniles. The point here is in the physiology of these ubiquitous arthropods: to obtain the expected result, the impact must be long-term. Cockroaches do not hear ultrasonic frequencies, but they do feel them. If you compare with a person, then there is the concept of "voice of the sea". This is infrasound generated by wind and waves, its range is 6-10 kHz. It can cause sore ears, as well as intense feelings of panic and fear. Ultrasound acts on cockroaches in a similar way.

Rarely, ultrasound radiation can affect people and pets. Fortunately, this effect is selective; nevertheless, it cannot be absolutely ruled out. Guinea pigs and decorative rats, hamsters will definitely feel it, cats and dogs less often.

In the case of humans, ultrasonic radiation can cause irritability, sleep disturbances, headaches, or feelings of weakness. The strength of the manifestation of malaise is largely individual and depends on the state and physiological characteristics of the organism. A person with strong immunity may not react at all to sound waves. To minimize the risk of unwanted consequences, it is best to turn on the device when the room is free. This is not so difficult to ensure, since ultrasound rays cannot pass through glass, wooden doors and walls, they only reflect from them.

Under the influence of ultrasound, the Prussians lose their orientation and lose the ability to communicate with their relatives. The first 2-3 days of device operation, you may feel that there are more insects, but this is not the case.

The advantages of such devices include:

• environmental friendliness, absence of toxic substances;
• the possibility of continuous work;
• safety for people and pets. with the exception of ornamental rodents.

Among the minuses are:

• the possibility of processing within the same room, since ultrasound does not pass through the walls and other obstacles;
• in rooms where there are many soft objects and textiles, the efficiency of the device decreases many times over - for example, curtains, bags, packing boxes and furniture located along the path of ultrasound absorb some of the radiation.

Everybody knows fumigators against mosquitoes. The electric cockroach repeller functions in a similar way. The mechanism of scaring off the Prusaks is based on the harsh aroma perceived by cockroaches. Both ants and other insects are afraid of him. It is simple to activate the device - you just need to plug it in and in a few minutes an unpleasant odor for arthropods will spread through the room.

The advantages of the device include high efficiency and ease of operation. Of the shortcomings, the need to connect to the mains is distinguished. Like all fumigators, the electric repeller works only while it is turned on.

The mechanism of action of electromagnetic scarers is based on impulses transmitted through electrical wires. They do not have a heavy effect on the nervous system of the pest, cause them a feeling of panic and fear. It is difficult for a cockroach to be in such an unfavorable atmosphere, so he is actively looking for an opportunity to leave the room.

Unlike ultrasound, the action of such a device spreads over the ceilings and voids of the walls.That is, electromagnetic waves work in all those places where insects like to equip their nests so much. Under the influence of the impulse, they crawl out of their burrows and look for loopholes to exit.

The advantages of such devices are obvious. They act continuously, do not contain toxins and have a large area of ​​action. In addition, they do not have any effect on the operation of household appliances and other electrical appliances.

Among the disadvantages can be noted the sensitivity to electromagnetic radiation of decorative rodents. Another disadvantage is that for the effective operation of the device, it is important that the electrical wiring runs along the perimeter of the entire room or along the longest wall. Such a condition is mandatory, but, unfortunately, it is technically impossible.

This is a combined apparatus that simultaneously acts with ultrasound and emits electromagnetic waves.

The most secure are electromagnetic and ultrasonic devices. However, they are less effective than electric fumigators. Electrical appliances, on the other hand, quickly get rid of cockroaches. But at the same time, they can be unsafe for humans, especially when it comes to children, allergy sufferers and pregnant women.

Among ultrasound devices, the rating of the most popular devices includes the following:

A universal device that works not only for cockroaches, but also for other ubiquitous living creatures in the home - bugs, ticks, spiders and flying insects, as well as rodents. The impact area is 200 sq. m. However, given that the mechanism of their action is based on ultrasonic radiation, the treated area must necessarily be open, without partitions and walls.

The repeller acts on cockroaches with waves of frequency in the range of 20-40 kHz. They are perceived by pests as a sign of alarm and make them want to escape from the territory as quickly as possible. The pulses act directly and are somewhat amplified by the action of alternating currents. The device is equally effective for both residential buildings and factory workshops.

Customer reviews indicate that this is a very effective repeller. However, when working, it emits a sound that is audible to the human ear, and this is its main drawback. Therefore, most often such a device is turned on only during the day, in which case the effect will be visible already on the second or third day.

The repeller works against the Prussians, as well as midges and rodents. The emitted ultrasound covers a room of up to 30 square meters. m. Can be used to prevent the appearance of cockroaches.

One of the most effective ultrasonic emitters for repelling all types of insects. The device provides for a pair of emitters placed at an angle of 180 degrees to each other. Covers premises up to 800 sq. m. It can function at negative temperatures, withstands heat up to + 80 gr. It is powered by a standard 220 V.

The mechanism of operation of this device is reduced to the simultaneous exposure of insects to ultrasound and subtle clicks. By reflecting ultrasound rays from the ceiling and walls, maximum efficiency is achieved. In the first minute of operation, a sound is discernible, but the device almost immediately switches to silent operation.

Among the most popular electromagnetic scarers are:

This device combines electromagnetic and ultrasonic effects. On the one hand, it emits electromagnetic waves, which are amplified many times over by electrical wiring. On the other hand, ultrasonic beams are generated in the range of 20-40 kHz. This effect gives a quick result, insects leave the home as soon as possible.However, it should be borne in mind that the action of this device only drives out the Prussians, but does not kill them.

In cottages and private houses, the manufacturer recommends installing two devices at the same time. One is placed in the attic, the other in the basement. Thus, the fields of influence will intersect and form a vicious circle, leaving no chance for cockroaches to find a comfortable place.

An electromagnetic low-frequency repeller, the radiation of which has a destructive effect on the nervous system of parasites. At the same time, it does not in any way impair the work of household appliances, does not interfere with the operation of radio and television receivers. It does not give radiation and vibrations harmful to people. It copes well with Prussians, but it is completely harmless against rodents.

The impact area corresponds to 80 sq. m. However, it should be borne in mind that electromagnetic radiation affects only adult arthropods; it does not affect young animals and laid eggs. Taking into account that the period of their ripening on average is about a month, the device must be active for at least 6-8 weeks to completely clean the room.

This apparatus generates pulses that pass through a magnetic field. The device affects not only cockroaches, but also spiders, flies, mosquitoes, wood lice and flying insects, forcing them to leave the area of ​​influence of the device.

Powered by a standard 220V AC mains. Processing area 230 sq. m, the walls will not become an obstacle to the penetration of electromagnetic rays. Does not affect the operation of electrical appliances, does not interfere with the reception of TV and radio signals. Safe for kids and adults, quiet operation.

Cockroach repeller is a fairly popular product on the Russian market. As a result, a large number of fakes appear. Sometimes in stores, under the guise of an original high-performance device, they sell a useless counterfeit. In the best case, it will not give any result in the fight against cockroaches. At worst, it will lead to a deterioration in physical and mental well-being.

To avoid such a development of events, before buying, you should definitely familiarize yourself with all accompanying documents and clarify the warranty conditions. Finding a good repeller these days is absolutely not difficult, there is no shortage in this group of products.

When choosing a device, you should pay attention to the area of ​​exposure, the ability to penetrate through walls and partitions, as well as the duration of the effect. All these indicators are present in the user manual. This is important because, for example, ultrasound does not penetrate obstacles. Therefore, in a multi-room house, one device will not give any noticeable effect, it is better to use several devices at once or to give preference to electric scarers. The duration of the work directly depends on the method of feeding. There are models that operate from the mains, other devices operate on batteries or accumulators. The former help in apartments, the latter are suitable for protecting a small house in a summer cottage.