Why have cockroaches survived until now?

There are three things that cockroaches must have in order to survive: food, a place to hide, and a source of water. Therefore, to keep your home free of cockroaches, the most important thing is to do a good job of cleaning in the kitchen and cupboards, sealing the food in bottles and jars so that cockroaches can't find something to eat.

In addition, in order not to give cockroaches a place to hide, the kitchen layout should be simple, there should be no dead corners that are difficult to clean, and when the kitchen floor, wall corners and cabinets can be kept clean and dry, the moisture and water sources that cockroaches need are cut off. In such an environment, cockroaches have no conditions to reproduce and survive, and they will naturally decrease. In the public environment, in addition to good environmental hygiene, it is also necessary to spray chemicals regularly and check regularly, which may reduce the harm caused by cockroaches to humans.

In fact, humans have been fighting cockroaches for nearly one or two thousand years, but they have never been eliminated, the main reasons are: first, the survival ability and reproductive ability of cockroaches are too strong; Second, the unsanitary environment of humans has created favorable conditions for cockroaches. Third, the world has not yet developed a medicine bait to completely eliminate cockroaches.

Cockroaches are Xiaoqiang, and there are cockroaches where there are people.

I also have cockroaches in the kitchen at home, which are disgusting, but I can't get rid of them, and I've tried many methods. I don't know what to do!

Newly renovated room, I actually saw Xiaoqiang today, there is nothing to eat in my room, and there is no garbage.

They can be ordered to take out (i.e. come to your house to sit down when they are eating and playing), and it is recommended that you get rid of them immediately, and then there will be more and more in the future.

Cracks in the kitchen or in the corner of the wall, Xiaoqiang is everywhere, and it can't be eliminated.

Cockroaches have survived in the world for 400 million years.

According to fossil evidence, primitive cockroaches appeared on Earth about 400 million years ago in the Silurian period. The fossils of cockroaches that we find or the cockroaches we find in coal and amber are not much different from those found in the cupboards. Its appearance hasn't changed much over the years.

I am in Chongqing, and I remember that there were cockroaches for as long as I can remember, especially in the countryside, and there were many cockroaches when the lights were turned on at night.

Hello, cockroaches have lived for more than 32,000 years and belong to fossil animals, cockroaches and dinosaurs are creatures of an era. It can be seen that cockroaches have a very strong adaptability and live for a very long time.

Cockroaches have lived in the world for hundreds of millions of years, which is equivalent to the growth of living organisms from fossils to the present, and they still exist after a long evolution, because cockroaches are relatively easy to survive, even if they don't eat for a month, they can still survive very well.

Cockroaches are particularly tenacious, and there is no natural death in autumn and winter. However, autumn and winter, especially just after heating, is the best time to exterminate cockroaches, if the density of cockroaches in the family or unit is high, you can take the opportunity to exterminate cockroaches.

Cockroaches like to congregate in warm, humid, well-fed and crevice-populated places, so after central heating, cockroaches will "move closer" to the heating equipment. During the period before heating, cockroaches tend to gather behind appliances that can dissipate heat, such as refrigerators, microwave ovens, ovens, and water heaters. In addition, the kitchen is also a place with a high density of cockroaches because of the abundance of food.

Even when there is no food in the living environment, cockroaches can survive by nibbling on confetti. Therefore, cockroach extermination is a long-term project, and home cockroach extermination does not need to wait for the best time, and can be found and sanitized at any time.

It should be said that each species has its own unique way of survival from ancient times to the present. Cockroaches are not very able to adapt to all kinds of harsh environments and have a strong fertility rate, so it is not unusual for them to survive until now.

Because he lived hundreds of millions of years ago, he had it, and even if he killed her, the eggs in her abdomen would be born, and the cockroaches would eat his corpse, and he would regenerate a bunch of cockroaches, and the cycle would continue indefinitely, so he could live until now.

Generally speaking, all species that can survive until now are species with strong vitality and adaptability, so that they can survive in the process of evolution and survive until now.

If a male cockroach is placed in a closed container, it can last about 10 days without water, but it will not really die unless it is more than 30 days old.

On top of that, female cockroaches can lay eggs even in the absence of male cockroaches in extreme conditions. That is, many female cockroaches become hermaphrodites after a single mating and can lay eggs continuously without mating. Therefore, cockroach reproduction is a combination of sexual and asexual reproduction.

Cockroach hazards.

Cockroaches are second only to houseflies in their harm to people, and sometimes they are even more annoying. It not only spreads diseases but also causes allergic reactions in people, such as allergic asthma, dermatitis, etc. It crawls everywhere on food, gnaws on clothes, calligraphy and paintings, and everywhere it appears.

Cockroaches have the habit of eating, spitting and excreting at the same time, and secrete odorous liquid, in their activities, not only can carry more than 40 kinds of pathogens such as mycobacterium leprae, Yersinia pestis, Shigella dysentery bacillus, etc., but also an important vector of intestinal disease and parasitic diseases, and its secretions and feces contain a variety of carcinogens.

The larvae that have just hatched from the egg sheath are gathered around the egg sheath, which is white, and then the color gradually darkens and spreads out, and the larvae are similar in shape to adults, but the body is small, wingless, and the sexual organs are immature.

The larvae develop slowly. It must undergo multiple molts to grow gradually, and the number of antennae and tail whiskers also increases with age. After the last molt, the larvae grow wings and emerge into adults.

Freshly molted larvae and newly emerged adults are also white and gradually darker in color, so that a species of cockroach can also change in a population according to environmental conditions.

The larval stage is long, generally lasting about 30 450 days. After the larvae lose their appendages or damage their antennae, they can regenerate in the next instar after molting. Regeneration of this type of injury also increases the number of molts.

Male and female adults can be easily distinguished by their external morphology:

A: The tail end of the male cockroach has two pairs of appendages, one pair is a segmented tail whisker, and there is also a pair of small needle processes (ventral spines); Female cockroaches have only one pair of appendages at the tail end, that is, tail whiskers, without needles.

B: Male cockroaches are generally thin and elongated, while female cockroaches are fat and wide.

C: In a few species, males have well-developed wings that extend to the tail end, but females have wings that cover only the front half of the abdomen, or are wingless.

Cockroaches prefer to live in a warm, humid, well-fed and crevice-filled environment, which are the 4 basic conditions needed for cockroaches to breed. At the same time, cockroaches also like to live near stoves and pools. Cockroaches like darkness and fear of light, and they come out at night, which is an important habit of cockroaches.

During the day, cockroaches hide in dark and dark places, such as indoor furniture, crevices in walls, caves and corners, and debris piles, and come out at night to move. <

Cockroaches prefer to live in a warm, humid, well-fed and crevice-filled environment, which are the 4 basic conditions needed for cockroaches to breed. At the same time, cockroaches also like to live near stoves and pools. Cockroaches like darkness and fear of light, and they come out at night, which is an important habit of cockroaches.

During the day, cockroaches hide in dark and dark places, such as indoor furniture, crevices in walls, caves and corners, and debris piles, and come out at night to move.