The living habits of cockroaches, the living environment of cockroaches

The living environment of cockroaches is:

Cockroaches prefer to choose warm, moist, abundant food and crevices to live, which are the 4 basic conditions they need to breed. These conditions are present in all buildings where people live and live.

At the same time, cockroaches also like to live near stoves and pools. Like the dark and afraid of light, day and night, this is also an important habit of cockroaches. During the day, cockroaches hide in dark and dark places, such as indoor furniture, crevices in walls, burrows and corners, and piles of debris.

Cockroach hazards:

Cockroaches have the habit of eating, spitting, excreting, and secreting odorous fluids, and in their activities, they can not only carry more than 40 kinds of pathogens such as Mycobacterium leprae, Yersinia pestis, and Shigella dysentery, but also an important vector for the transmission of intestinal diseases and parasitic diseases.

It contains a variety of carcinogens in both its secretions and feces. Hiding in dark corners such as kitchens and bathrooms that are not easy for people to notice not only endanger storage items such as grain, oil, food, clothing, and books, but also spread diseases and cause harm to people.

The main characteristics of cockroaches are manifested in appearance, food, habits, growth environment, and seasonal growth.

1. Appearance. Cockroaches have flat, black-brown bodies, and are usually medium in size. The head is small, movable, the antennae are filamentous, and the compound eyes are well developed.

The wings are flat, the forewings are elytra, the hindwings are membranacean, the anterior and posterior wings are basically the same size, covering the back of the abdomen, and some species are wingless. Not good at flying, able to walk quickly.

2. Food. Cockroaches are omnivorous insects that eat a very wide range of foods. All kinds of food, including bread, rice, pastries, meat and vegetarian cooked foods, melons and fruits, beverages, etc., especially fragrant, sweet and oily flour foods.

3. Habits. Cockroaches have a flat body, which is suitable for drilling and hiding holes, and can hide in very narrow cracks. For example, adults and nymphs of the German cockroach can hide in crevices, and even females with eggs can live in crevices.

Cockroaches have a habit of living in groups, and can often be found in a single habitat with a few to hundreds of cockroaches, the main reason for which is due to the effect of "aggregation pheromones".

4. Growth environment.

Cockroaches like to choose warm, humid, abundant food and crevices to live, which are the 4 basic conditions they need to breed. All buildings where people live and live generally have these rules, so cockroaches have become a sanitary pest that infests thousands of households.

5. The seasons wax and wane.

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.

The larvae of cockroaches resemble adults in shape, with small bodies and wingless, which are detailed below:

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. 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.

Habits. 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 can be active at 0. 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 a bad environment, and are not easy to be killed by agents, and larvae can hatch when conditions are suitable.

Cockroaches are omnivorous insects that are widely consumed. Eat a variety of foods, including bread, rice, cakes, cooked meat and vegetables, fruits, and drinks. Especially flavorful, sweet and oily flour foods.

Cockroaches are addicted to oil. Among the various vegetable oils, sesame oil is the most attractive. In some places, cockroaches are known as "oil thieves".

Among sugars, brown sugar and maltose are the most attractive. Cockroaches often eat other things like cotton wool products, leather goods, paper, books, soap, wires, etc. In places like outdoor garbage dumps, sewers, and toilets, they eat decaying organic matter and even bite animals to death.

Cockroaches also live longer in adults, with German cockroaches having the shortest lifespan of about 100 days. The longest-lived American cockroach can live up to a year. Lifespan also varies depending on the species and environmental conditions. As for the German cockroach, which has the shortest cycle, it usually takes more than two months to complete a generation.

The longest American cockroach takes more than a year. Not only does it vary from species to species, but also to different temperatures, nutrients, and other conditions. A fertilized female cockroach can produce more eggs in its lifetime. The American cockroach can lay up to more than 50 eggs, so cockroaches are very reproductive.