The house fly - voracious, dirty

The presence of flies is a sign of unsanitary living and living conditions, as it carries many contaminants and pathogens. Since the 16th century, people have thought flies spread disease. By the nineteenth century, it was proved by experiments and from there the table of diseases transmitted by flies every time was longer.

Insect fly flies have 6 legs. The end of each leg carries a pair of claws and two glands can secrete a sticky substance that helps the fly to stand firmly on smooth and vertical surfaces. There are 2 eyes on the head of the fly but it is a dual eye with about 4,000 single eyes and there are 3 single eyes on the top. Flies have a pair of wings, thick wings into hard edges so they fly very well. Fly likes light, is afraid of dark, likes warm place, cold fear.

Typical of voracious and dirty food

Flies love to get dirty, they find a fishy place . because they are very good at sniffing. Female flies and male flies all eat human food, garbage, waste including sweat and faeces of animals. "Mouth" flies include taps, when not used, then put under the head. When you need to eat, thanks to the pressure of the blood and the effect of the muscles that stretch the nozzle to eat. The root of the tap is divided into two lobes. The underside of the concave lobe into many parallel ducts is called false wind. Called "eat", but flies only suck liquid. When flies sit on food, the tube extends and lobes are applied to the surface of the food. Flies (which contain many enzymes that help it eat a variety of foods) from the salivary glands run down the false airways into the digestive tract and loosen the food and the flies suck the food. Sometimes flies also vomit the badly digested food into a large droplet that sticks to the two lobes of the spout and can be left behind by the flies on the beans, into the stains we still see on the glass doors.

Flies are voracious, eat, vomit; when eating or waving their legs, the wing ticks dirty the terrible food. One day he can eat up to 50 meals. However, it "breaks" our food not because of the loss of quantity but because of the quality of the serious contamination.

(Photo: Flickr)

A formidable record of childbirth

Female flies are a species that is very fertile and only likes to breed in dirty places. It usually lays eggs where rotting, fermented or rotting organic matter has origins in animals and plants such as pits, pigsties, landfills, dead carcasses . The growth of flies is also very dense. special, must go through 4 stages: eggs - maggots - pupae - adult flies. Only in the summer months does flies lay up to 6 batches of eggs (120-150 eggs / each litter) and more. Eggs are oval white blocks about 1mm long; Depending on temperature, eggs can hatch after 8-24 hours. However, the fermentation caused by bacteria in the dung is often high temperature, so the development of eggs is usually rapid. Eggshell ripped out and so was a baby worm. Large maggots gradually grow on organic matter, after 5 days of about 1.5cm long and molting twice, crawling under porous soil into a dark pupa, hardening like a cigar. After 3 days, the pupil turns into a parasite on the ground and flies away. That baby fly can only mate after 10-14 days. In a summer, from a female fly can multiply into millions, children, grandchildren .

The "life expectancy" of the fly is about 3-4 weeks. Most flies die during the cold months, but some pass through the winter by sneaking into the walls of the walls, switching to the dormant state and using stored food in the body. When the weather returns to warmth, flies will crawl and repeat their lifetimes by laying eggs.

Maggot (Photo: impehcm.org.vn)

As a means of transporting mild fluid

It has been experimented with marking a paint on the belly when it first crawls under the ground and sees flies can fly away from the old place about 1,600m. If there is parking space for vehicles, the fly also moves very far.

In terms of road transport, it is impossible to carry flies like a super heavy transport plane. Because of me, legs, wings have many feathers, is a very good place for microorganisms. The microorganisms also pass through the flies' digestive system without dying, and according to the fly segment pollute food and drinking water. People have calculated a fly that can carry up to 28 lakh bacteria and many eggs of worms, worms .

The presence of flies is a sign of unsanitary living and living conditions, as it carries many contaminants and pathogens. The most dangerous is when flies sit down to feed on faeces of intestinal diseases such as cholera, typhoid, or polio. Germs of those diseases can be brought to other people's food by flies, making people eating that food sick. In addition to the above diseases, flies also transmit some other diseases such as amoeba dysentery, tuberculosis, eye infection, trachoma, fungus .

Flies filled with food are common in the market.(Photo: VNN)

Crime is worth it

Flies not only spread germs, but also cause great trouble for people when working, eating, and resting: where there are many flies is an indisputable evidence of unsanitary life.

Kill flies: The simplest is to use fly swatter. Fly flies with glass bottles (pouring water into 2/3 of the bottle and apply honey sugar to the inside of the bottle), or with a mesh with attractants, sticky traps, light traps with electric shock . If necessary, it can be used Substances such as: put chemical evaporation boxes into flies' shelter, or bait to attract flies with baits to kill. Use insecticidal chemicals (DDVP, dipterex .) residual spray and a lot of flies.

Kill eggs: It is to improve environmental hygiene, eliminate breeding grounds by filling up garbage, bury dead animals, clean latrines, breeding cages . causing flies to lose places to lay eggs.

Killing: If flies lay eggs that hatch into maggots, they quickly kill the maggots. The maggots live and grow only in the humid environment with manure. Want to kill, to make the living environment of the worm becomes dry. Can use lime powder, dry powdered soil, dry sand, slag coal . poured into the place where there are many maggots make it dry. If there is no drying condition, use an oval leaf (crumpled leaves soaked in water for 40-60 minutes) to pour into a place where there is a problem.

Kill pupae: Fly pupae can only grow in porous soil. Therefore, compaction of compaction soil around latrines, animal sheds . or lime, cement, brick.