Let's talk about cockroaches

"...terrible animal by name cockroach which does not disturb the hosts, but eats the guests alive ... ".

Bernhard Tanner

Guests from the Paleozoic

More than 300 million years ago, the earth was covered with a continuous forest of huge ferns and horsetails. In their shadow, in warmth and dampness, an innumerable army swarming and flying cockroaches. They were the most numerous insects on earth. Geological and historical periods changed one after another. The climate itself has also changed. Rainforests died off, becoming coal. The land was conquered by coniferous and flowering plants. Ancient lizards, having multiplied, inhabited the land, water and sky. A few more tens of millions of years passed, and they died out, giving their living space to a new species - mammals: animals, birds and, finally, people. All these ups and downs took place in front of the cockroaches, but they were not affected in any way. Modern cockroaches practically indistinguishable from their ancient ancestors. These heat - and moisture-loving insects were very unhappy with the general cooling and the reduction of the tropical forests. And cockroaches had to adapt to new living conditions in deserts, forests and caves. It was here that the paths of man and cockroach crossed. Since then, the fate of people and some species of cockroaches has been intertwined forever...

Look into the tub - cockroaches are teeming there ...

Now more than 4 thousand species of cockroaches live on our planet. Almost all of them live in the wild, and most of them - 80% in the forests of the tropical zone. But some of them also settled in our dwellings. And when it comes to cockroaches, many people have only one opinion - "Fu, how disgusting!". Cockroach indeed, harmful and unpleasant. Yet it deserves our close attention. If only because it has long lived next to us.

The big black cockroach is widely known to the inhabitants of all parts of the Earth, except maybe Antarctica. It is difficult to say exactly where the homeland of this insect is located. In Europe, it has been living for more than three hundred years. In the 18th century, another type of cockroach appeared in Russia - red. It was called Prusak, as it was believed that it was brought by Russian soldiers returning home in 1762-1763. after the Seven Years' War from Germany. However, in western Germany he is called "French", and in eastern Germany - "hare". The opinions of scientists about the place of its origin differ: either Africa, or South Asia. Now this is no longer important, since with the help of man the Prussian settled widely throughout the globe.

In Russia, in wooden houses, in satiety, dampness and warmth, cockroaches multiplied throughout the year in huge numbers. In the words of Leo Tolstoy, “the walls moved.” If for some reason the owners of the house forgot to wash the dishes after dinner, in the morning it was clean - the cockroaches did not waste time. In some places they got used to them and considered them inevitable, if not necessary There were even signs: cockroaches start up in the house - for profit, run out of the house - to be a fire.

Rapidly developing and growing cities were mastered by cockroaches. Man erected strong stone houses, improved heating and sewage systems, in general, created comfortable conditions for himself and cockroaches. It turned out that in high-rise stone buildings, cockroaches settle even more willingly than in wooden ones. They are drawn to the central heating like a magnet. In sewers and collectors, they feel great. There is heat, there is food, there is moisture. What else is needed? From here they make their trips to our apartments. As they said in the old days, "if there was a hut, there would always be cockroaches."

The rapid growth of cities always entails the development of intercity transport. And although cockroaches have fast legs, they are happy to use everything. modern views Vehicle. They can be found on planes, on ships, and even submarines. With food packed in bags, boxes, boxes, cockroaches settle everywhere. To understand why we cannot cope with them, we will have to get acquainted with the biological characteristics of cockroaches.

Liquid-legged goat-bug

So biological features our ward cockroach.

First, the dimensions. There are several largest cockroaches in the world, according to various sources. Some call the largest cockroach living in Colombia, the female Kwgaloblatta longipennis, which reaches a length of 9.7 cm and a width of 4.5 cm, others - the winged Cuban cockroach, reaching a length of up to 10 centimeters, others - the Australian rhinoceros cockroach (Macropanesthia rhinoceros), more than 9 cm long and weighing about 33.5 grams. The inhabitants of our apartments are much smaller: the Prussian has a length of 10 to 13, and the black cockroach - from 18 to 30 millimeters. But from the point of view of cockroaches, size is not the main thing for them. Remember, their contemporaries - the ancient lizards were real giants - and yet they died out. And cockroaches live and thrive to this day. Small sizes allow cockroaches to populate places that are not suitable for other insects. Their flat body can squeeze into the smallest half-millimeter gaps.

Secondly, their coloring. The Prussian is colored reddish-brown, with two dark stripes behind the head. Black, as the name suggests, black in color with a shiny lacquered shell.

Thirdly, long, longer than the body, cockroach whiskers. They are organs of smell and touch. Therefore, the cockroach constantly monitors them - cleans them with its front legs, this is vital for it.

Let's pay attention to the legs of a cockroach. Each leg has an organ that perceives the slightest vibrations and tremors. Cockroaches run pretty fast. For example, a Prussian, being frightened in a fraction of a second, can cover a distance of 30 centimeters. But cockroaches are not stayers, they are sprinters and therefore get tired quickly. Sometimes while running, they make short jumps, imitating their distant relatives - grasshoppers.

Cockroaches also have wings. It happens that the Prussians fly, but only in exceptional cases and for short distances. In blacks, only males have wings, but they do not use them for flight.

What do cockroaches eat? The same products as you and I: meat, vegetables, bread, fruits, sugar. The omnivorousness of cockroaches is striking, they can also eat paper, soap, and all sorts of garbage. The device of the cockroach mouth allows them to gnaw everything that can be gnawed. The stomach is equipped with strong muscles and sharp plates - millstones that grind everything in a row. But cockroaches spoil food more than they eat it. The ability of cockroaches to eat anything that comes across, as well as the ability to do without food and water for a long time, makes it possible for cockroaches to survive in the most difficult conditions. The main thing for them is to be warm enough, and a long hunger strike is not a hindrance for them.

And divorced their darkness-darkness ...

Cockroaches are mainly nocturnal insects, they are active at night. Late in the evening, at night and early in the morning, they crawl out of their shelters in search of food. If you saw a cockroach hunting in your kitchen during the day, it means that there are a lot of them, and all convenient shelters are already taken. It is not so difficult for cockroaches to fill all the cracks - they multiply with amazing speed.

The female lays eggs in an oval and durable capsule. The eggs in it are packed in dense rows and equipped with a mechanism for the respiration of the embryos. For a short time, the female cockroach wears a capsule with eggs on itself - at the end of the abdomen. But after 30 hours, the female black cockroach leaves their offspring, attaching the capsule near the food. The female Prussian wears a capsule almost until the offspring hatch. It happens that young cockroaches open the shell of the capsule when the mother is still wearing it .. Newly hatched small cockroaches are no different from adults. They live and feed with adult insects and molt regularly. With each molt, the differences between them are less and less. There is a constant struggle between the black cockroach and the Prusak. Faced with black cockroaches, the Prussians very quickly force them out. The Prussians do not openly fight black cockroaches, as they are smaller and weaker. The Prussians have different fighting tactics and more important advantages. Prussian females are more prolific and take longer to care for their offspring. The number of red cockroaches is growing like a snowball. They eat the eggs of black cockroaches, which develop more slowly and, due to their size, settle more successfully.

A tribe of cannibal Samoyeds.

The life of cockroaches, like our life, is full of accidents. It happens that cockroaches get injured and get damaged. Quite often this happens during molting, when a young insect emerges from the old larval shell. Hemolymph begins to flow from the damaged part of the insect's body. The injured fellow is immediately surrounded by other cockroaches, sympathetically licking the protruding hemolymph and eventually eating their comrade without a trace. This cruel instinct eliminates the crippled and weak individuals from the cockroach tribe, preserving the strength and vitality of the whole family. This instinct is so strong that the red cockroach, having injured himself, is able to begin to gnaw on himself.

A struggle that lasts forever.

The cockroach is an insect with very great potential. Small, mobile, leading a hidden lifestyle, breeding at an incredible speed, hardy and omnivorous, able to survive in adverse conditions, changing behavior depending on external conditions - all this makes cockroaches a very dangerous enemy. It is extremely difficult to fight them. The war against cockroaches has been going on for more than one hundred years, but so far without visible results. One of the old Russian methods is freezing. In winter, all doors and windows were opened in a residential building, and the owners temporarily moved to their neighbors. A temperature of minus 5 degrees Celsius kills a red cockroach in half an hour. But today the main emphasis is on pesticides. But the peculiarities of the cockroach genus allow them to quickly get used to the next chemical novelty. Involuntarily, we grow a super-cockroach that is immune to any pesticides. Recently, there have been reports of the disappearance of cockroaches from modern houses. There are many assumptions on this subject. These are the influence of high-frequency cellular communication, and genetically modified food products, and new non-environmental finishing materials, and the destruction of the ozone layer, which knocked cockroaches off their biorhythm, but there is still no exact answer. But this already gives food for thought, if it has affected cockroaches so much, then how does it affect us.

Like any insect, cockroaches have many natural enemies. Tiny insects - eulophids - are especially effective against them. They look for cockroach egg capsules and lay their eggs inside them. The hatched Eulophid larva eats the entire interior of the capsule - all future cockroach offspring.

Say a word about the poor cockroach.

No matter how unpleasant and disgusting a cockroach is to us, we will treat it objectively: it has a number of advantages that we can use for ourselves. Cockroaches are an exceptionally convenient object for scientific experiments. In many laboratories of the world they use them as an object of research. They performed a lot of interesting work on the formation, growth and development, nervous and endocrine systems. All studies based on them require careful scientific study. Perhaps this will help humanity in the near future to create new more effective drugs.

And maybe our children, once in a research laboratory, will look with interest at swift-footed dark insects and be surprised: “But there was a time when this rare insect lived in almost every house” ... 

There are several thousand species of cockroaches in the world, but not all of them are synanthropic insects, i.e. coexisting with the person. They are one of the most ancient creatures on Earth and can live in countries with a climate from very hot to temperate, not meeting only the inhabitants of the North Pole.

It's hard to even say what cockroaches are afraid of. After all, these insects survived the dinosaurs, practically without changing their appearance, and in modern world they can survive at levels of radiation exposure ten times greater than a human being can bear.

Even one cockroach seen indoors is an indicator that his whole family lives somewhere nearby, since they live in colonies. At the same time, each individual leaves a scent trail behind it, so that others can easily find it.

Cockroaches are so common in the modern world and have become so firmly established in our lives that many people experience real fear when they meet them, which is scientifically called blatophobia (fear of cockroaches). Like other phobias, it is most often the result of a severe fright in childhood.

Scary movie or stormy backlash loved ones on these insects or their own traumatic experiences lay the foundation for why some people are afraid of cockroaches in adulthood.

Strong blattophobia has to be treated with professional psychotherapeutic methods, for example, with the help of hypnosis. Neuro-Linguistic Programming is also effective in helping you stop being afraid of cockroaches. The fear of cockroaches, from this point of view, is a manifestation of certain models created by the person himself, but at the same time not working very well. With the help of various techniques, these models are changed so that blatophobia begins to recede and eventually disappear altogether.

Although cockroaches are associated with dirt and waste, they can appear in an apartment where cleanliness is maintained. On their paws, a nasty guest can carry dangerous bacteria and worm eggs, which is especially dangerous when there are small children in the house, pulling everything into their mouths. Chitinous covers shed during the molting period and various secretions of these insects can cause allergies up to asthmatic attacks. Moving inside household appliances or in an electrical outlet, cockroaches can cause a short circuit. All these factors force people to get rid of unwanted neighbors as soon as possible.

We fight cockroaches with folk methods

In an apartment, cockroaches prefer to live close to sources of water (leaking pipes, sewer drains) and food. An ideal place that combines both conditions is the kitchen. True, during the day an insect in the kitchen is rarely seen (except for very dirty dwellings), from which the logical conclusion follows that cockroaches are afraid of light.

In addition, even when the lamps are turned on at night, they quickly scatter. In fact, you need to figure out why cockroaches are afraid of light sources. Like many other living creatures, these insects lead a more active life at night, hiding in various crevices during the day. At night, the sharp switching on of the lamp, accompanied by human footsteps, signals to the cockroaches that the danger is close, and makes them quickly run away from such a place.

Impact on cockroaches with industrial preparations

For a long time, chemists have tried to determine what smells cockroaches are afraid of, and use this in industrial development. The chemical method is the most effective way getting rid of various insects in the house. The most common insecticides are in the form of aerosols, gels, crayons, and poison traps.

But it is worth remembering that the highly active chemicals contained in insecticides can affect not only insects, but also the health of the person himself, especially when in direct contact with them.

Toxic fumes can lead to a weakened immune system and the development of new or exacerbation of chronic diseases. The use of aerosol and gel forms of insecticides is especially dangerous if there are small children or pets in the house who can inadvertently eat poison intended for insects. Since the mass of a pet is usually small, there is an increased likelihood of health problems after an enhanced one.

Prevention of the appearance of cockroaches in the house

Even after completely getting rid of uninvited guests, simple rules must be followed to prevent their new visits. You will have to close up all the cracks and cracks through which nasty insects can enter the house, and treat these cracks with boric acid powder or insecticidal chalk. In addition, there should be a fine mesh on the ventilation holes. At night, be sure to dry the surface of the bathroom and kitchen sink, water indoor plants in the morning, not at night, fix dripping faucets and leaking pipes, depriving cockroaches of access to water.

All food that is outside the refrigerator should be stored in tightly sealed jars or resealable bags so that food odors do not remain. Cupboards and the area of ​​the trash can should be regularly wiped with detergents, try to get rid of food waste regularly.

Question. What could be more disgusting than a cockroach in a sandwich?
Answer. Poltarakan.

Eating cockroaches, cockroach dishes. Extreme cuisine.

This simple joke conveys the attitude of most people towards the humble person of the cockroach. Although there are those who believe that in the foreseeable future we will all change our minds about these insects. According to some scientists and nutritionists, over time, cockroaches will turn for us into a tasty and healthy pate that can be spread on bread like peanut butter. Or turn into a casserole with Italian pasta.

We have to realize that these are nothing more than representatives of the Blattodea squad, just another group of six-legged living quietly, calmly, like other innocent representatives of the earth's fauna, and for the most part quite clean, peaceful and funny. It is no coincidence that a site called “Cockroach Care” appeared on the Internet, where everyone can get advice on keeping (including heating and litter composition), feeding and breeding these insects. There is also a Cockroaches Home Page run by the Blattodea Culture Group, formed in 1986, with the mission of "promoting the study and cultivation of cockroaches on a worldwide scale."

This organization regularly publishes a bulletin with information about their individual species. With articles related to this topic, encourages the practice of free exchange between members of the organization "surplus livestock". We should also keep in mind that there have been and are many peoples and cultures in the world for which cockroaches are an important source of food. True, only a few of these people live within the boundaries of the so-called civilized world. Although Nicolas Cage ate a cockroach in one of the films (Kiss of the Vampire), the appearance of these insects on the table of Euro-Americans will put the most daring and adventurous of them to flight. By the way, Cage later said that this was his most stupid act, and not because he was somehow especially disgusted or had terrible taste, but because the press and fans even now, years later, remind him of that scene with a question : “Did you really eat a cockroach then?”

Yes, it is safe to say that when cockroach products hit the market, manufacturers will need a massive and most inventive PR campaign to bring them to the consumer's table. First, let's get to know these insects better. Cockroaches have been living on Earth for at least 250 million years and in a certain sense they are very perfect living organisms. So, they are armed with a "compound eye" consisting of two thousand individual lenses, while the human eye has only one. The hairs on the legs provide the cockroach with a sense of touch, the antennae - the organ of smell, and two small "antennae" at the back work as indicators of movement. So if someone tries to sneak up on a cockroach from behind, they will warn him of the danger and let him run in time.

The mouth of a cockroach distinguishes not only the taste, but also the smell of food. As the insect grows, its outer shell is shed several times and replaced with a new one. A cockroach is able to hold its breath for 40 minutes and spends 75% of the time at rest, that is, resting. The largest cockroaches live in South America- they reach 15 centimeters in length and have a wingspan of up to 30 centimeters. The process of courtship to reproduce offspring is ignored by cockroaches. When a female is ready to mate, she releases pheromones that attract males. Some females mate only once and then lay eggs for the rest of their lives. Females of some species produce seven capsules (oothecus) in their lifetime, each containing up to 48 eggs. The life span of some cockroaches does not exceed 140 days. But at the same time, more than 35 thousand cockroaches can easily spawn from the offspring of one female per year.

Headless, this insect is able to live another week, since, unlike us, the cockroach's brain is not localized in the head, but is distributed throughout the body. Therefore, the cause of death of cockroaches is often thirst and "accidents", such as a collision at full speed with a wall. Entomologists admit that long relationship human with a cockroach began with people's interest in these insects as food. Given the availability of such a valuable source of protein in any hut and cave. Later, when a person began to make preparations for the winter, the number of cockroaches probably increased significantly, and they turned into his constant companions.

And now I want to refute one common opinion. Never in the history of human-cockroach relations has the latter been associated with any specific diseases, which distinguishes it from fleas and mosquitoes, which are considered carriers of plague and malaria, respectively. Nevertheless, today people perceive cockroaches as carriers of infection, which, apparently, is explained by the love of these insects for dark and humid places. However, I digress, because what has been said has nothing to do with eating cockroaches.

The cockroaches that we meet at home and on the city streets really should not be eaten. But there are about 3950 more species, representatives of which we may never have seen in our lives. They can become the food of our future, as they are able to satisfy the need of the rapidly growing population of the Earth for food, the need, the level of which exceeds the productive potential of the planet. Simply put, getting protein from cattle is perhaps the least efficient of all the ways that have been used in the history of agriculture. Too many forests are being destroyed to supply supermarkets around the world with steaks and hamburgers. On the other hand, everyone understands that a shoebox is enough to breed a myriad of cockroaches.

I exaggerate, of course. Cockroaches as a source of protein of the future will not be bred in boxes, but on special "cockroach farms". Insects will be offered a carefully designed diet, with respect to it there will be a whole system of norms and controls, similar to that that operates today in other branches of animal husbandry. Perhaps, over time, society will reach such a level of tolerance for cockroaches that no one will sue a restaurant if they find parts of this insect in their salad. Moreover, gourmet branded cockroach salads will appear! And this is not a joke at all.

Based on the book "Extreme Kitchen".
Jerry Hopkins.

15.01.2016

Cockroaches are ubiquitous creatures that, as it seems to those who have encountered them, are not afraid of anything.. However, this feeling is deceptive. Unable to maintain their own body temperature, constantly needing water, sensitive to a number of chemical substances. These insects have a number of vulnerabilities. About what cockroaches are afraid of, and will be discussed in this article.

Cockroaches and their preferences

Cockroaches are insects that have long lived next to humans. Everything suits them in our dwellings - it is warm here, there is always food and secluded places for creating a colony. Some have lost the ability to live independently in the wild and currently live exclusively next to humans, which is why they are called synanthropic.

Cockroaches willingly settle in trains and planes, where conditions for a normal life are created.

The ubiquitous insects can cause phobias in humans. So, the fear of cockroaches is called blattophobia and is quite common among the urban population.

What are the most favorable conditions for their life? The most important are the following:

1. Constant temperature in the range from +12 to 25 0 С;
2. Access to water and sufficient humidity;
3. Lack of light.

Thanks to the special microorganisms - gregarins, living in the intestines, cockroaches easily tolerate the lack of free food waste. They are able to digest inedible materials such as cardboard, paper, glue, shavings, which allows them to survive in non-residential premises. long time. However, this symbiosis sometimes plays a cruel joke with insects. Drugs that kill gregarines also kill cockroaches, which, without symbionts, are unable to feed on their own.

Favorite places of cockroaches are dark secluded corners of human habitation, located near a water source. These can be places near sinks and toilets, plumbing and sewer pipes, behind wallpaper, radiators, rarely moved kitchen furniture. Sometimes they settle inside old electrical appliances - radios, tape recorders, televisions. They are attracted here by protection from insecticidal preparations and a suitable temperature.

In areas where access to water is limited, cockroaches often settle near flower pots with earth, which serve as a source of water for them. In this case, edema is often found inside the pot - this is how the females try to provide their offspring with sufficient moisture for proper growth.

What are cockroaches afraid of?

Inside human dwellings, cockroaches have no natural enemies. In nature, they are birds, insectivorous animals, as well as predatory arthropods (for example, ticks). However, there are some important environmental parameters that a person can well regulate, depriving these insects of the opportunity to live and reproduce normally.

In nature, prolonged and severe droughts rarely occur, completely destroying insects. Most often, they always manage to find wet cracks and cracks in the ground in order to wait out the heat and lack of moisture.

Temperature

Cockroaches are able to live and breed comfortably at temperatures from +2 to +28 ° C. In winter, temperatures below -5 ° C cause the death of these insects within half an hour. This is due to the fact that they are unable to maintain a constant body temperature, as they are cold-blooded animals. Even stable ootheca do not save cockroach offspring from frost.

A similar situation develops in rooms whose temperature is above +28 ° C. At this temperature, the humidity decreases and, in the absence of water sources, cockroaches first stop breeding, then die. The females are the last to die, shedding their ootheca. These devices do a good job of saving future nymphs from drying out in the heat, as they are covered with a dense cover that retains water inside.

Based on the knowledge of these features, such folk remedies like freezing and boiling water treatment. They involve the destruction of cockroaches in the house with the help of prolonged exposure to low temperatures in winter and the treatment of their habitats with boiling water.

Ultrasound

There are many theories why cockroaches are afraid of ultrasound. Here are the most common versions:

• Cockroaches react to ultrasound as a danger signal;
• Ultrasound negatively affects their metabolism, which makes them avoid rooms where it is;
• Ultrasound knocks down the communication settings of insects.

In fact, there have been no serious studies of the effect of ultrasound on cockroaches in our country. Abroad, such repellers are often used in public places and most effectively repel mosquitoes. Their action on different types insects most likely depends on the frequency and power of the device used.

By increasing the intensity of the ultrasonic signal, they will inevitably feel its effect on themselves. The consequences will be headache, nervousness, irritability, sleep disturbances.

It is not surprising that cockroaches leave the apartment where such a device works. However, you can turn it on only when no one is at home and if there are no pets in it.

Bright light

The fact that when the lights are turned on at night, the insects begin to scatter in different directions, makes some people think that cockroaches are afraid of the light. However, their reaction to light is more of a way to avoid potential danger. The fact that colonies never settle in the world is also no proof of this thesis. Dark places usually offer sufficient levels of humidity and protection from major hazards.

Studies in which cockroaches were exposed to light of varying frequencies and intensities showed that, in fact, these insects do not change their behavior when the light changes. Therefore, the effect observed in the kitchen is related to their reaction to the sounds of an approaching person and his smell.

Drought

Cockroaches are even more afraid of the lack of water than the lack of food. That is why insecticidal treatment of premises is always carried out after all wet places in the house are isolated. Control of this parameter allows you to avoid the appearance of a colony in a new apartment. Low humidity (less than 65%) combined with high temperature(more than 28 ° C) of air slow down the metabolism of these insects, reduce the hatchability of eggs and, with prolonged exposure, completely destroy cockroaches in the house.

Chemical substances

Over the long history of the neighborhood, a person has studied well what smells cockroaches are afraid of. This knowledge allows you to effectively destroy and scare them away from our apartments.

Among the effective substances are ammonia, phenol, benzene, kerosene and others. It should be noted that most of them are very toxic to warm-blooded animals and humans, so they cannot be used in residential areas. An exception is ammonia - its addition to water for wet cleaning has long been used as an effective deterrent.

Who eats cockroaches is interesting to all the victims who have tried everything. The last hope is placed on natural enemies, of which there are not so many. Some people breed on purpose, creating the most favorable conditions for. All these efforts are for the sake of feeding beloved pets.

Animals are enemies of insects

The meat of a rather large arthropod is rich in proteins. The food is nutritious, useful, satisfying. What animals feed on cockroaches can be listed on the fingers of one hand. Every animal eats bugs, but not many people prefer cockroaches.

Domestic cats, dogs, hamsters, rats are not averse to feasting on food, but without much enthusiasm. In nature, cockroaches are hunted by hedgehogs, frogs, lizards, birds, and rodents. Little monkeys can eat them.

On a note!

In stores, terrarium owners become the main buyers of cockroaches. Insects serve as food for snakes, lizards, iguanas. Willingly eats skulls. Periodically buy live food for monkeys, birds, rodents. These representatives of the fauna are able to eat insects in huge portions. Of particular interest are and . These species are bred specifically at home.

Enemies among insects

The already dead body of the Prusak is eaten, dragging the carcass with them to be eaten by the larvae. However, the main enemy is the emerald wasp. She herself does not eat the victim, but brutally uses the body, exposes creature long torment.

The wasp injects poison into the body of a living Prusak. Paralyzes him, drags him into the hole. It lays eggs in its body. Walls up the entrance to the mink so that the prisoner who has departed from the poison could not get out.

The larvae develop inside for about a week. From the eggs, worms appear, which, after being born, begin to eat the cockroach from the inside. A week later they pupate. They stay there for a few more days. They crawl out of the victim's shell as already formed wasps.

Human

In Asia and Africa, cockroach dishes are served in expensive restaurants. Bred specifically in insectariums for this purpose. Small cockroaches are eaten like seeds at home, roasted whole in a pan. In our regions, such a predilection for eating vile creatures is not shared.

Who eats cockroaches from animals - the list is extremely small. Prussians are not the main food for anyone. The inhabitants of terrariums are fed insects twice a week, birds, monkeys, rodents eat even less. in dark, damp places, in human homes, where natural enemies do not penetrate. Under such conditions, cockroaches were able to quickly multiply, multiply the population and spread throughout the globe.