Cockroach can get the title of Xiao Qiang. It has super survival ability.

The average cockroach can resist the pressure of 29.4 cows, that is, the gravity of 3 kilograms. It can survive in 18 mol caustic soda solution and 12 mol hydrochloric acid for 30 seconds, and it can also survive in vacuum (not in space) for 10 minutes, and it can survive underwater for 30 minutes without eating. Cockroaches can live for a month. Cockroaches can only live for a week without water. Even after being beheaded, it can survive for nine days. So cockroaches have strong viability.

2. Cockroaches are resistant to drugs

I used spray to kill cockroaches once before. Several big cockroaches died at first. There seemed to be fewer cockroaches, but after two days, cockroaches appeared again, and this time it seemed to be more than before, so I used a spray and continued to kill. But this time, when I sprayed those little cockroaches, the cockroaches not only didn't die, but also ran around vigorously.

In the next few days, the number of cockroaches increased day by day, and the spray seemed to be out of order. It turns out that the spray is a chemical pesticide. For decades, humans have been using it to kill cockroaches, and the species of cockroaches are constantly evolving. Due to long-term use, newborn cockroaches have developed resistance to the drugs used in the spray.

In addition, while spraying, cockroaches are constantly multiplying, so there will be more cockroaches, not fewer.

3. Cockroaches are never picky eaters

It eats everything. It is omnivorous. Even if it is hungry, it can eat newspapers and books. Also, when there is no paper or books to eat, it can eat celluloid and old records, which can satisfy its hunger. So that's what makes it unique. It has a strong vitality. You can't let it starve.

4. The "limb regeneration" ability of cockroaches

Professor Hua Shiyi's team raised100000 "cockroaches" to study the regeneration ability of cockroaches' severed limbs, and published important research results in Nature Communication, which was promoted as the highlight of the same period.

In this paper, they explained why cockroaches with superior adaptability and viability are called "cockroaches", and they also confirmed the "limb regeneration" ability of cockroaches, which is considered to be a * * * with biological damage mechanism in nature. If it can be synthesized, it is likely to be used for human wound repair.

job operation

1, keep the residence dry and clean.

This is the most important point, so clean that cockroaches cry when they come. Delineate strict eating areas, and no food is allowed except restaurants and kitchens. Pay attention to the cleanliness of the kitchen and bathroom, and no water is allowed. Because cockroaches like wet and dirty environment. Cockroaches don't like the indoor environment very much, so naturally they won't stay here to breed.

Step 2 prevent cockroaches from coming in

Pipes extending in all directions are the rapid transport system of cockroaches. At night, cockroaches in the drainage ditch will crawl into the room in droves along the drainage pipe and climb out from the gaps in the drainage holes, walls and doors and windows. At night, the external drainage holes at home should be covered to prevent cockroaches from entering. Close the holes in the external wall, floor and platform so that the pipes and wires of the split air conditioning system can pass through or install the system.

Coat a layer of vaseline with a width of at least 10 cm around the dry drainage hole to prevent cockroaches from crossing the hole; Install barbed wire with a mesh width of 2 mm on the drainage hole.