Temperature methods for exterminating cockroaches: critical indicators of heat and cold, dangerous to cockroaches and larvae


How does temperature affect the Prusaks?

Prusaks and other species of these insects are cold-blooded creatures. They cannot independently regulate the temperature regime of their body. It directly depends on the external environment.

Frozen cockroach

That is why many people who want to get rid of annoying insects are interested in the temperature at which cockroaches die. If you roughly navigate what conditions they like and what they are afraid of, then it is quite simple to destroy them forever.

What you did not know, but would like to find out about the life of cockroaches

Do cockroaches eat bedbugs No, these pests, unfortunately, are ignored by cockroaches. However, with insufficient food (if the population has grown too large), they can include bedbug eggs in their diet.

Do cockroaches have wings? Yes, these arthropods have a couple of well-developed wings. Of course, they will not fly, and they will not be able to, but they will be able to effectively plan in case of danger.

Do mice eat cockroaches? Yes, they do, these rodents are omnivorous and have an excellent appetite.

Do battering rams have a brain? Yes, even they have a brain located in the head. But these insects also have a group of nerve cells (ganglia) scattered throughout the body that control motor and signaling functions - which is why a headless cockroach can exist for some time.

Do spiders eat cockroaches? Of course, the baleen insect can be an excellent source of building protein.

Do cats eat cockroaches

Most often, domestic fluffs disdain to dine with these arthropods, but if they wish, they can profit from them. This situation is complicated by the fact that cockroaches are carriers of many dangerous diseases, and a cat, having eaten an infected insect, risks getting sick.

Can cockroaches live in the refrigerator

In the freezer, the conditions are simply unbearable for them, but in the refrigerator, where 5C is maintained, insects can feel quite comfortable.

Do cockroaches have blood

Yes, these insects have blood, but it's white. Cockroaches have an open circulatory system, while the organs are washed with blood, and there are no small blood vessels.

What animal eats cockroaches Hedgehog is a fan of cockroaches, he feasts on them, supplying his body with protein.

Optimal conditions for parasites

As mentioned above, cockroaches are dependent on the external environment. The optimal habitat temperature for these insects ranges from +2 to + 28-30 ° C. The obvious fact remains that the apartments and houses of people become an excellent breeding ground for the Prussians. Stable humidity and temperature are constantly maintained here, there is almost always enough food and moisture, which are so necessary for their reproduction.

Ideal conditions for cockroaches - medium temperature and food availability

It is quite rare on the streets to see the Prussians looking for food. This is due to the instability of the external environment. They do not like cold, wind and constant changes in the microclimate. For the normal and stable growth of the colony, a person's dwelling remains an ideal place.

What else scares cockroaches away?

Like all insects, cockroaches cannot stand the aroma of vegetable essential oils. This phenomenon is often used in household and professional insect control.Any plants that have a strong odor can be used as a repellent - insect repellent. For cockroaches, the smell of bay leaves, wormwood, mint, tea tree oil and garlic is very unpleasant. Therefore, if the tenants of the apartment do not have aversion to some of their specified smells, you can apply these plants in practice.

Disastrous "weather" for cockroaches

If you know under what circumstances insects feel good, then it is enough to simulate a situation where they will experience extreme discomfort. In this case, we are talking about the use of fluctuations in heat and cold to deal with "unexpected guests".

At what temperature do cockroaches die? This is the main question that interests most people seriously thinking about the natural method of baiting these insects. Taking into account the previously mentioned information about the optimal living conditions for the Prussians, it can be quite logical to draw a conclusion that cockroaches die at a temperature that differs from the one mentioned earlier.

Cold is the main enemy of cockroaches

You can use two options:

  1. Exposure to subzero temperatures.
  2. Hot boiling water or a general increase in thermometer readings.

In the first case, it is much easier to achieve the desired effect, however, this technique requires some additional safety measures. In the second case, it will be necessary to increase the overall temperature in the room, which is far from always easy to do. That is why most people use freezing of an apartment in order to get rid of pests forever.

Professional help

Pest control with dry ice is a method used by professional pest controllers to control insects. This is an expensive method, so it is impractical to purchase all the necessary substances on your own.

Not all firms that provide pest control services use this method due to the high cost of consumables. In addition, dry ice slowly penetrates furniture, carpets and other objects where cockroaches prefer to hide. It is more profitable to use poisonous insecticides.

Hot fog is a more powerful method. With the help of special equipment, a steam cloud is created, the average temperature of which is 70 ° C.

Drops in a cloud of steam are filled with toxic substances that kill cockroaches, and the high temperature is a guarantee of the destruction of pests. The hot steam method is recognized by experts as the best way to kill insects.

Heat treatment allows you to quickly get rid of cockroaches and return comfort and coziness to the house. In the presence of children and animals that can be harmed by the remnants of chemistry after disinsection, the method of destroying pests by low and high temperatures acts as a guarantor of safety.

Exposure to low temperatures on insects

Freezing the apartment remains one of the most effective methods of dealing with annoying insects. In this case, rapid destruction by the pest is achieved by means of cold. With a decrease in thermometer readings to numbers below + 2 ° C, a slowdown in the activity of all metabolic processes in the insect body is observed.

Low temperature at which cockroaches die

A further drop in this indicator leads to a complete cessation of the vital functions of the Prusaks with a lethal outcome. Cockroaches die at temperatures of -1 ° C and below. Of course, a lot depends on the age and stamina of a particular individual. So, at -1оС, cockroaches die, which have just hatched from an egg and still do not have the necessary chitinous membrane. As a result, death comes quickly.

Conditionally, you can set the following temperature conditions at which cockroaches freeze:

  • -1оС - young generation in 1-2 hours.
  • -5оС - all individuals within 30 minutes.
  • -10оС - absolutely all representatives of the colony die up to 5 minutes.

Cockroach eggs die at sub-zero temperatures, starting from the thermometer mark at -5 ° C.

Thus, it becomes obvious that the effects of cold can be extremely effective. The main thing is to correctly carry out the whole process of such natural persecution of pests.

Heat treatment methods

High and low temperatures are suitable for the complete destruction of cockroaches. There are many ways, but those that are used by specialized pest control services are especially effective.

It is permissible to use cold or heat on your own, but you can get a positive result only if you follow all the rules below.

How to apply cold

Cold is the easiest and most affordable way to kill parasites. Since cockroaches freeze at temperatures below zero degrees, in the winter season, you can get rid of insect colonies without the use of insecticidal agents that can harm humans and animals.

A simple option for getting rid of cockroaches is called the following:

  • If the outdoor thermometer reads below ten degrees, you can start processing the housing in order to remove arthropod pests. To begin with, take animals out of the house, remove indoor flowers and things that may suffer from exposure to cold. Households also leave the premises.
  • Then turn off the heating, drain the water from the pipes. If you do not do this, there is a great risk of damage to communications.
  • Then open the windows. When it comes to private home ownership, it is additionally important to open the doors. It is recommended to carry out the freezing procedure if the weather outside is dry. If there is a likelihood of a blizzard, it is recommended to postpone measures for the destruction of cockroaches for a while, since you can return to a snow-covered room.
  • To remove cockroaches through the action of frost, a few hours are enough. But to get the maximum effect, it is recommended to leave the premises for a day.

It is important to know that the use of this method in an apartment can be ineffective. This is due to the fact that during the cold snap, adults will leave the room, moving to another apartment.

After completing the procedure, the pests return back. Only cockroach eggs can die.

Specialized insect control services also use the freezing method. However, its essence is different. Employees of such services use cold fog for the treatment and cleaning of living quarters, the production of which is carried out using a special generator.

Cold fog is one of the most effective ways to cleanse your home of parasites. Exposure to pests is carried out using a combination of low temperatures and toxic substances with insecticidal properties.

After the treatment, the substances released by the generator retain their effect for several weeks or months, preventing the reappearance of arthropods. Among the advantages of professional housing treatment is the ability to destroy insect eggs.

Freezing the room

Freezing an apartment is one of the most unconventional, controversial, but effective methods of combating the invasion of the Prussians. It has been proven that this method remains one of the best, guaranteeing the total destruction of the entire insect colony.

-5 and below - this is the temperature at which cockroaches die

However, it has a number of flaws that you need to keep in mind:

  • Freezing, in which cockroaches die en masse, is possible only in winter. For a high-quality performance of the corresponding procedure, it is necessary that the street is at least -15 ° C.
  • To successfully complete the process, you must leave the room for at least 5-6 hours with fully open windows.

Given these nuances, many people are in no hurry to carry out such a radical extermination of pests.Nobody wants to turn their home into a refrigerator in winter. In addition, it is imperative to shut off the water in the radiators and the boiler to prevent it from freezing during the freezing process.

Despite a number of problems that almost always arise with such persecution of pests, it remains one of the most effective.

The reviews of almost all people who did the freezing correctly confirm the 100% end result.

What temperature can they withstand

Cockroaches can withstand high and low temperatures. If the indicators do not fall below fifteen and do not rise above thirty degrees, the conditions for the existence of insects are comfortable.

If the values ​​decrease, insects are partially immersed in anabiotic state.... The pace of life, mobility slows down, parasites require less food.

Reproduction activity decreases. The number of egg clutches is reduced. If the low temperature persists for a long time, the larvae of the parasites do not hatch from the eggs.

This feature can be used for practical purposes. For example, to reduce the number of parasites, it is recommended to regularly leave open windows in the apartment. This measure will help reduce the insect colony.

If the thermometer rises above thirty degrees, this also has a negative effect on the condition of the parasites. Dehydration, overheating sets in. However, cockroaches only die if the values ​​increase to thirty-five or more.

It is important to note that it is impossible to freeze the premises in the conditions of apartment buildings, since pests can hide from unfavorable conditions in the secluded corners of the apartment. The method of exterminating cockroaches by freezing is effective when it comes to a private house.

What happens if you accidentally eat a cockroach larva?

There are times when they call or write to us and ask in a voice with a slight tinge of panic what will happen if you accidentally eat a cockroach larva. Apparently, someone had a similar incident, the child could eat a piece of cookies with a small nymph, or the person himself did it.

Most likely, in this case, nothing terrible will happen. There is a possibility that you will receive some portion of microbes, but you will not swallow anything deadly. So don't worry. But such situations themselves are very eloquent. That is, there is a possibility that the cockroach that yesterday collected bacteria in the basement is running around your products today.

Consider also the fact that any chocolate in one way or another contains the remains of cockroach bodies. Not ours, of course, but tropical ones, but the difference is small - according to scientists, about half of cases of chocolate allergy are, in fact, associated with an allergy to the remains of the bodies of cockroaches, ground together with cocoa beans.

Therefore, one cockroach that someone accidentally ate with cookies or bread is nothing compared to the number of cockroaches that we constantly eat with chocolate.

Cockroach larvae, as the main carriers of dirt and infections in the apartment

It is believed that the main danger posed by cockroaches is the introduction of bacteria and fungal spores from places of accumulation of garbage into living quarters. That is, a cockroach that swarmed in the garbage chute in the evening or ran along the sewer pipe, after a couple of hours, can already crawl into the apartment and run with the same paws on a piece of bread. Which you will eat tomorrow or give to your child. And so it really is. How dangerous this is is not clearly known - no one has figured out what proportion of infectious diseases is associated with infection with an infection brought precisely by cockroaches. That is, this danger is assumed, although it certainly does take place.

By the way ...

Cockroach larvae, like adults, do not bite a person.There are known reports of exceptions to this rule, but they have not been confirmed and cannot be considered the norm. Therefore, if people get bites in an apartment with cockroaches, this means that blood-sucking insects, bugs, or fleas, live here along with cockroaches.

And it is from the larvae that such a danger is most urgent. There are just a lot of them. Each female produces about 30 larvae every 1-2 months. In the apartment they have practically no dangers, most of them survive safely, and in their life there are several hundred larvae for each adult female. That is, the bulk of the cockroaches in the apartment are exactly the larvae. And already starting from the second or third instar, these are fast-running larvae.

Consequently, it is they, as the most numerous insects, that migrate in greatest quantities from dirty locations to the apartment and it is they who bring here the greatest amount of various dirt and various infectious agents.

What cockroach larvae look like

The photo below shows the larvae of the most common red cockroaches, colloquially Prusaks, or stasiks:

The nymph in the background is almost three times the size of the one closer to the operator.
The red longitudinal stripe on the pronotum of the insect is clearly visible

Depending on their age, their length ranges from 1 to 9 mm. When you go into the kitchen at night, turn on the light and see how cockroaches of different sizes scatter across the table and walls, know that all small cockroaches are exactly the larvae.

The drops of fat that remain on such boards are enough for the larvae to feed.
Cockroach larva on cutting board

In terms of body shape and color, the larvae are very similar to adult cockroaches. An adult Prusak and several nymphs of different ages are located nearby. Surely you can see that these nymphs are reduced copies of an adult insect, and also without wings. They even have rufous and black stripes on the pronotum forming the same pattern, except that they are slightly wider.

Droplet spraying: "proven classic"

Now, a few words about our processing method. We use small-droplet (mechanical or electric) sprayers in apartments, which have a slightly larger droplet size than the "cold fog". At the same time, we process selected areas of concentration of parasites (such as bugs, cockroaches, moths, flies, etc.). The fact is that our drug is not easy destroys parasitic insects and infects them, and they, subsequently, infect their relatives. This is a proven, reliable and safe technology, while we always select new drugs, improving the quality of processing. After our processing, the room must be kept not for 3 days, as in the case of the "fog", but only for 3 hours, then ventilate the apartment.

Order processing in our organization! Choose “the joy of life without parasites”!

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