How to repel cockroaches Does ultrasound work

Ultrasound also has certain harms on the human body. Therefore, it is recommended to spray with an aerosol can in a place where there are many cockroaches and let it sit for an hour. Or buy cockroach medicine. For other enquiries: 400 110 6119

Fear.

Cockroaches rely on the bristles on their bodies, especially their feet, to sense vibrations (such as sound waves) on the ground and in the air.

Different insects make different sounds through the vibrations of their limbs or organs. A Russian study found that cockroaches use the frequency and intensity of these sounds to determine whether nearby insects pose a threat to them. When a sound signal with a frequency of 5 to 8 Hz and an intensity between 35 and 50 decibels is perceived, the cockroach panics and quickly flees.

Prevention and control measures. 1. Always keep hidden places clean. To find the source of the insects, you can suddenly turn on the lights at night when the cockroaches are active, observe where the cockroaches are, and where they are going, find their hiding places and then eliminate them.

2. For sheltered places, Keswei can be used in places where cockroaches often come and go.

3. Apply paper tendons and lime (500 grams of paper tendons plus 50 kg of lime, and then add water to mix) paint to all the gaps, and plug the gaps.

4. If there are too many cockroaches in the warehouse, workshop or indoors, and the harm is serious, it can be eliminated by sulfur or aluminum phosphide fumigation.

Afraid, but not killing, and ultrasound also has certain harm to the human body. Therefore, it is recommended to spray with an aerosol can in a place where there are many cockroaches and let it sit for an hour. Or buy cockroach medicine.

As long as the super wave is emitted, the rats and cockroaches will not be able to eat or sleep, and finally escape.

Half of the 1.4 billion people are fooled.

There are several ways to get rid of cockroaches: 1. Melt soap into water and sprinkle it on the cockroach, it will suffocate to death; 2. Cut the onion and put it in a place infested with cockroaches to expel cockroaches; 3. Cockroaches hate the taste of cucumbers, so they can cut the cucumbers open in the cockroach infested; 4. Sprinkle laundry detergent in places where cockroaches often haunt, and after a while, the cockroaches will disappear. Because it likes to eat laundry detergent, which is toxic, it can effectively repel it; 5. Mix half of the sugar and baking soda and put it in the cockroach infested place, and after about 3-14 days, the cockroaches will disappear.

The best way to get rid of cockroaches at home.

1. Use sticky cockroach paper to stick one by one, which is very accurate and effective. Don't step on it, if you step on it, it will release a large number of germs in the cockroach's body.

2. Use a sugar water bottle to catch cockroaches, take 1 to 2 canned food bottles, put 3 tablespoons of sugar water, and add half a bowl of boiling water to rinse it, as a bait. Put the bottle in the place where the cockroaches are active, once the cockroaches smell the sweetness, they will crawl into the "trap" of the canned bottle, which is simple and easy.

3. Hot soapy water to kill cockroaches, put the soap in 4 liters of hot water, and then spray it directly on the cockroach after it is dissolved, which can effectively kill cockroaches.

You can buy some cockroach houses, sticky cockroach paper and put them at home to get rid of cockroaches, and supplement them with cockroach medicine. Boric acid can also be purchased and put in flour, mashed potatoes, and let the cockroaches eat, which will also kill the cockroaches.

There are cockroach medicine and insecticide sprays that can repel cockroaches, and if there are too many, it is best to use cockroach medicine to have a great effect.

Cockroaches can be repellent with insecticides and cockroach killers.

It's hard to disperse, but it can be killed, there are a lot of insecticides, and there are insecticide patches.

Use insecticides or buy cockroach medicine, usually sell that kind of cockroach medicine on a bicycle has a good effect, you can buy it and try it.

Specialized cockroach medicine can be bought. Generally, there will be cockroaches in humid places in the south, so you should prepare cockroaches at home.

Now the cockroach medicine on the market is also available, and there is also to avoid unclean hygiene from the root, and you can also spray insecticides.

If you have cockroaches, you can buy that kind of insect repellent directly and poke it in the kitchen for a while.

If you want to go to cockroaches. You can buy some cockroach killers on NetEase.

What to look at cockroaches has cockroach medicine, and there are some cockroach clips, so you can try these situations.

Everyone is no stranger to cockroaches, many people have questions, my cockroaches are from **, usually the house is often cleaned, and the sanitary conditions are still OK. In fact, cockroaches mainly enter the room through "one belt and two crawls".

There are generally many such medicines, and you can go and buy some online.

Ultrasonic is a kind of sound wave with a frequency higher than 20,000 Hz, which has good directionality, strong penetrating ability, easy to obtain more concentrated sound energy, and has a long propagation distance in water, which can be used for distance measurement, speed measurement, cleaning, welding, stone crushing, sterilization and disinfection, etc.

The frequency of sound waves that our human ears can hear is 20Hz-20000Hz, and the lower limit of ultrasound is greater than the upper limit of human hearing, so the use of ultrasound to repel cockroaches is harmless to people.

The ultrasonic effect has been widely used in practice, mainly in the following aspects:

1. Ultrasonic cleaning.

The ultrasonic application principle of cleaning is that the high-frequency oscillation signal sent by the ultrasonic generator is converted into high-frequency mechanical oscillation by the transducer and propagated to the medium.

The ultrasonic wave in the cleaning solvent radiates forward in the dense phase of the cleaning solution, causing the liquid to flow and produce tens of thousands of tiny bubbles, and the tiny bubbles existing in the liquid vibrate under the action of the sound field.

When the sound pressure reaches a certain value, the bubble grows rapidly and then closes suddenly, generating a shock wave when the bubble closes, generating thousands of atmospheres around it, destroying the insoluble dirt and dispersing them in the cleaning solution.

When the group particles are wrapped in oil and adhere to the surface of the cleaning parts, the oil is emulsified and the solid particles are separated, so as to achieve the purpose of purifying the surface of the cleaning parts.

2. Ultrasonic humidifier.

Theoretical studies show that under the condition of the same amplitude, the energy of an object vibration is proportional to the vibration frequency, and when the ultrasonic wave propagates in the medium, the frequency of the vibration of the medium particle is very high, so the energy is very large.

In the dry winter of northern China, if the ultrasonic wave is passed into the water tank hidden potato front, the violent vibration will break the water in the tank into many small droplets, and then use a small fan to blow the fog droplets into the room, which can increase the indoor air humidity, which is the original stove management of the ultrasonic humidifier.

For diseases such as pharyngitis, tracheitis, etc., it is difficult to use the blood flow to make the drug reach the diseased part, and the principle of humidifier is used to atomize the liquid medicine and let the patient inhale, which can improve the efficacy.

3. Ultrasonic mite removal.

Researchers have found that the auditory nervous system of mites is very fragile, and manual search is very sensitive to ultrasound of specific frequencies.

This new type of mite removal product adopts modern microelectronic technology means, directly uses special frequency ultrasound to act on the auditory nervous system of mites, so that its physiological system is disordered, irritability, loss of appetite, and finally dying gradually.

The acar-removing products using this principle do not need to add any chemicals, are non-toxic and non-secondary pollution, and are not harmful to the human body and pets at home, so they are ideal mite removal products.