Why do cockroaches always fly at night and not during the day?

1. Habits of cockroaches 1. Cockroaches are the oldest insects, 350 million years ago, cockroaches were active on the earth, and they are the oldest and most successful insect populations in the world. Cockroaches do all kinds of evil, eat everything, and eat everywhere, and the food that cockroaches crawl over will leave a disgusting odor; It often bites people's beloved clothes. Cockroaches are omnivorous insects.

It loves the food that humans eat; I also love books, leather, clothes, soap, etc.; They also often climb into the gutters, garbage heaps and toilets and other places to eat feces, dead animals and other rotten organic matter, eat everything, in the harsh conditions of no food and no water, cockroaches will even bite each other, eat big and small, strong eat weak. Almost all kinds of places where people live and move, there are traces of cockroaches. 2. There are at least four basic conditions for cockroaches to settle down in a place:

Warm climate; humid environment; Abundant food source and multi-crevice structure. Obviously, if you try to eliminate these conditions, you can effectively prevent the breeding of pests. 3. Male insects can mate many times in their lives, and females can produce eggs for life after mating, after male and female cockroaches mate, the tail end of the female cockroach will grow a pod-like thing called an egg sheath, and the eggs are laid in it.

A female worm can lay more than 10 eggs and more than 90 egg sheaths. In an egg sheath, 10 can be hatched, and more than 50 small cockroaches can be hatched, which is related to the species of cockroaches. Therefore, it is very important to eliminate cockroach egg sheaths, and killing one egg sheath is equivalent to eliminating dozens of cockroaches. Cockroaches lie dormant at night, and during the day, most of them hide in the "cracks, holes, corners, and piles" of walls and furniture near water sources, food sources, and heat sources.

When we exterminate cockroaches, we should pay attention to these places are the focus of spraying and putting cockroach poison bait. Dosing in place, twice the result with half the effort. 3. Cockroaches have unique habits.

It reproduces quickly (a fertilized female cockroach can evolve into hundreds of thousands in a year when the diet is sufficient). and can reproduce asexually for more than three generations; It is highly survivable (can freely move through millimeter gaps, and can survive for 40 days without eating any food if there is water); Cockroaches have now become the most indoor, the largest and most widespread urban health pest. Cockroaches are good at crawling, swimming, and can fly in times of crisis.

The cockroach's flat body makes it good at living in small crevices, almost anywhere there is water and food. If the conditions are not good, you will not die if you do not eat or drink for a long time. With the above characteristics, the number of cockroaches is increasing day by day, and its distribution range is expanding day by day, and it has become the number one household pest.

Cockroaches like darkness and fear of light, like to lie in the day and come out at night, and can be seen occasionally during the day. Generally, after dusk, they begin to crawl out and forage for food, and return to their nests in the morning. The temperature is most active at 24-32 and completely inactive at 4.

In the tropics, cockroaches can reproduce and move throughout the four seasons. In the northern region, there is a heating equipment in the indoor room in winter, the temperature is suitable, and cockroaches can move and breed as usual. Most cockroaches are oviparous, and their eggs are arranged in an orderly manner in the egg sheath, which can resist the influence of the environment, and are not easy to be killed by pesticides, and can hatch larvae when the conditions are suitable.

It has to wash its wings during the day and get it dirty at night!

Online excerpt: In fact, most cockroaches are reptilian insects Some cockroach wings have been degenerated or very short, its forewings are leathery, hard and only protective, but the hindwings are thin and suitable for flight, so when they are disturbed or move long distances or when male cockroaches pursue female cockroaches, they will fly.

There are many kinds of cockroaches, generally there are two different colors, one is black, the other is maroon, adult cockroaches are generally slightly black, can fly, and cockroach larvae also have wings, but the wings are still very soft, so it is difficult to fly.

Those who can fly are called big strong, and those who can't fly are called small strong, and big strong is more powerful than small strong!!

Genes determine structure, structure determines function, and obviously, they are genetically different.

There were people in the crowd who weren't people. There are also cockroaches in them, and some are not cockroaches.

Cockroaches areHermaphroditismof dioecious adults, their external morphology is easily distinguishable.

1. The male cockroach has two pairs of appendages at the end of the tail, a pair of segmented tail hairs, and a pair of tiny needles (ventral spines); Female cockroaches have only a pair of appendages, tail whiskers, at the end of their tail, and no needles.

2. Males are usually very thin, thin and slender, while females are thick and wide.

3. In some species, male cockroaches have well-developed wings that extend all the way to their tails, while female cockroaches have wings that only cover the front half of their abdomen, or no wings.

Habits. The activity and reproduction of cockroaches, like other insects, are affected by temperature. Under normal circumstances, the seasonal growth and decline of cockroaches is a change in the number of populations or communities that manifest themselves in response to changes in temperature.

Cockroaches carry the eggs of disease-causing bacteria, viruses, protozoa, fungi and parasitic worms, and can serve as intermediate hosts for many types of worms.

Cockroaches have been shown to carry about 40 species of vertebrates.

Pathogenic bacteria, important of which are Mycobacterium leprae, which transmits leprosy, and bubonic plague.

Murine bacilli, Shigella dysenteria, Shigella dysentery, pediatric diarrhea, Staphylococcus aureus, and Pseudomonas aeruginosa that causes urinary tract infection.

Escherichia coli that causes infections of the genitourinary tract and intestines and transmits enteric diseases and gastritis.

of a variety of Salmonella, such as Salmonella type B typhi, Salmonella typhi and so on.

Cockroaches can be carried along to cause food poisoning.

In addition to the above-mentioned Pseudomonas aeruginosa and Escherichia coli, there are also a variety of pathogenic bacteria, such as Clostridium perfringens and Streptococcus faecalis.

Wait. The above content reference: Encyclopedia - Cockroaches.

Because they have wings, they just don't usually use it easily.

Cockroaches will grow wings in the nymph stage, and the nymphs 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 activities, the nymphs are similar in shape to adults, but the body is small, wingless, and the sexual organs are immature. Nymphs 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 nymph grows wings and emerges into adults.

Online excerpt: In fact, most cockroaches are reptilian insects Some cockroach wings have been degenerated or very short, its forewings are leathery, hard and only protective, but the hindwings are thin and suitable for flight, so when they are disturbed or move long distances or when male cockroaches pursue female cockroaches, they will fly.

Cockroaches are a very common insect, and they are often considered flightless. However, in some cases, cockroaches are indeed able to fly. So, why don't cockroaches usually fly?

First of all, we need to understand the flight ability of cockroaches. Cockroaches have wings that are about half the length of their body and can vibrate quickly. They fly slower and can only fly about a meter per second.

Although cockroaches have such flying abilities, they usually do not choose to fly, but rather crawl.

This is because cockroaches have a better body structure and movement patterns that are better suited to crawling. The body of cockroaches is long and flattened, with many tiny bumps that attach well to the ground. They are also very strong on their legs, which can support their body weight and run quickly on the ground.

In addition, the cockroach also has flexible antennae and sensory organs, which can sense the surrounding environment and quickly escape from danger.

In contrast, cockroaches are not as capable of flying as they are to crawl. In flight, cockroaches need to consume more energy, and their wings are also easy for eaters to catch. In addition, cockroaches fly slower, making it difficult to escape danger in the air.

In summary, although stool roaches have the ability to fly, they usually do not choose to fly. This is because their body structure and movement are more suitable for crawling, and flying consumes more energy and is easier for eaters to catch. As a result, cockroaches often choose to crawl rather than fly.

This is not a cockroach, it is a tobacco nail, which is a kind of world-first storage pest, complex food, and harms grains, beans, oilseeds and other grains in the grain warehouse; Tobacco products such as tobacco leaves, cigarettes and cigars stored in tobacco warehouses are endangered.