Blowfly: how dangerous is the pest and why is it grown?

The blowfly is a dipterous insect that has about 2 thousand species. It differs from its fellows - house flies, well known to every person - in body size. Blow flies can reach 20 mm in length. The body of this insect is covered with bristles. His eyes are usually red or dark red. A fly needs vision to survive.

Blowflies are a viviparous type of insect. Females lay eggs directly into decomposing corpses - then larvae emerge from there. Adults prefer to eat carrion, rotten fruits, meat, and the larvae of other insects.

Family Flesh flies

This family includes more than two thousand species. They are found mainly in the northern hemisphere, in temperate climate zones. In hot climates there are not so many of them.

The blowfly is mostly gray in color, but other colors are also found. Some species are quite large, their length can reach more than two centimeters, but there are also small ones - no more than six millimeters. The larvae of these flies usually develop on rotting meat or other organic matter. There are blowflies that lay eggs in other insects, wounded animals, and even humans.

There are viviparous blowflies that lay larvae in a decomposing corpse.

Breeding

For those who are not against breeding blow flies, and in particular their maggot larvae, this section of our story is intended. We will tell you how to make the simplest maggot from our favorite material for all kinds of crafts - an indispensable plastic bottle.

This is done as follows:

1. Cut the plastic bottle into two parts so that the upper part with the neck, being turned over and inserted into the lower half, does not reach the bottom by 4-5 centimeters.
2. Pour sawdust into the lower part of the “one and a half” or “kopeck piece” in a layer of two to three centimeters.
3. Place a piece of fresh or spoiled meat or a piece of fish in the upper part. By the way, you can also add a few small fish that you discarded after fishing.
4. Place the maggot in a shaded area.

When the meat begins to spoil, the flies will smell it and lay eggs there. The hatched larvae will feed on the substrate offered to them. Soon, a week after their eggs hatch, they will stop feeding in preparation for pupation, and will leak through the neck of the bottle straight into the sawdust.

Thanks to crawling in sawdust, maggots will be cleared of the smell of carrion, and you can take them with you fishing without hesitation. If you put an egg in a maggot, the larvae will be the largest.

Housefly

Some people mistake an ordinary housefly for a blowfly, but this is not true. The housefly is much smaller, and it is not able to bite through the skin; it feeds only on liquid food, and must first dissolve solid food in saliva.

This fly prefers to lay eggs in a moist, rotting environment, such as manure. One female can lay up to 120 eggs at a time; fortunately, not all of them hatch.

Treatment

Many diseases carried by blowflies have specific treatments. Special vaccines have been developed for many. And yet, the main disease transmitted by blowflies is myiasis, the treatment of which we will describe in detail.

Location of the larvae

Since myiasis can be both internal and external, their treatment is different. If the skin is damaged, it is necessary to wait for the larva to mature, after which it moves outward and can be easily removed from the wound using tweezers. To speed up the progress of the larva, you can use various oils: vegetable, camphor, vaseline or those that you have at home. The oils prevent the access of oxygen, thereby causing the larva to move outward. After the larva has been removed, the wound must be treated with an antiseptic and a sterile compress with a disinfectant applied; in case of significant damage, external or systemic antibiotics can be prescribed. And in no case should you try to remove the larva before it approaches the exit, this can lead to its rupture and suppuration of the wound. If internal organs or intestines are damaged, antiparasitic drugs are used; if it gets into the stomach, it is washed out.

Gray blowfly

This fly is also called a sarcophagus. She is carrion. This is a large fly, its length reaches 25 millimeters. Gray blowflies are, as the name implies, gray in color with a darker checkered or line pattern, with a yellowish-white head “divided” by a black stripe. The eyes are red, and there are white longitudinal lines on the belly. The body shape is oblong, the abdomen is covered with large bristles, and the legs are shaggy.

Gray blowflies are rare guests in a human home and appear there only if they have something to profit from there. The sense of smell of these flies is very developed, and they are able to smell the smell of rotting meat at a very long distance. Moreover, they only need to touch the surface of the meat for many small worms to immediately begin to move on it.

Female gray blowflies are viviparous and lay their larvae primarily in carrion. But there are representatives of this family, the larva of which is capable of developing in rotting fruit, feces or other decomposing organic matter. There are also types of flies whose larvae are capable of parasitizing other living organisms.

The larva of this fly is characterized by extraintestinal digestion. Sometimes she is able to feed on the larvae of other insects or practice cannibalism. The blowfly larva lives on carrion for up to 10 days, after which it moves into the soil, where it turns into a pupa, and then into an adult fly.

The pupa of a blowfly can hibernate; for example, the pupae of some species of sarcophagus are able to “sleep” through the entire winter and turn into an adult only in late spring.

The blowfly feeds on the nectar of flowers, and at the same time pollinates them, carrying pollen on its shaggy legs.

The attitude towards gray blowflies, as well as other carrion species, cannot be unambiguous. Being carriers of infectious diseases, they also serve as a kind of orderlies in nature. And forensic criminologists are able to determine the time of death by the age of the larvae in a decomposing corpse.

Benefits and harms

All types of blowflies pose an epidemiological danger to humans because they live on decaying organic matter and corpses. They eat there too. They are mechanical carriers of pathogenic microorganisms - bacteria, viruses, parasites. The most dangerous disease is leprosy, the most common is intestinal infection.

Important!

Infection occurs through contact. Pathological microorganisms remain on the legs and body of the insect. So, from feces, a blowfly lands on vegetables, fruits, meat, or any other product. Eggs enter the human body due to violation of hygiene rules - unwashed hands, unwashed food. The larvae are especially dangerous as distributors of myiases - helminthic infestations in animals and humans.

The blowfly does a lot of harm to fishing by laying eggs or larvae in lightly salted, fresh fish. The product loses its presentation and poses a threat to human health and life.

On the body of animals where there are open wounds, females lay eggs and reproduce larvae. Attracts the smell of rotting flesh and bacteria on damaged skin. Worms make passages in living flesh, feed, and lead an active lifestyle.

Along with this, the blowfly or carrion fly is extremely beneficial, helping to decompose corpses. This cleans the environment.

Interesting!

During the First World War, a unique property of blowflies was discovered. Maggots settled in wounds and ate rotting tissue and bones. Worm secretions prevented the proliferation of pathogenic bacteria, which stopped inflammatory, decaying processes and accelerated the healing process of wounds. In medicine, this method of therapy is used for poorly healing wounds. But the worms taken are exclusively sterile, bred in laboratory conditions.

blowfly

Green blowfly

This is a beautiful fly of a glossy emerald color with smoky wings that have a faint openwork pattern. The length of the green fly usually does not exceed 8 mm. It has large reddish eyes, a rounded belly and white cheeks.

The habitat of the green blowfly is places of all kinds of sewage, decomposing animal corpses, manure, waste, but sometimes they are also found in flowering plants that have a strong aroma. The food consists of rotting organic matter, where it lays its eggs.

One female is capable of laying approximately 180 grayish or light yellow eggs, which she tries to hide in carrion as deep as possible. The larvae are born after 6-48 hours and continue to develop there for another 9 days. They then move into the soil to develop into a pupa. Depending on weather conditions, an adult fly is formed within 10-17 days.

Bacterial poisoning

Flies may visit multiple food sources throughout the day, and they may carry harmful bacteria that they have collected from human or animal waste. They can transfer these bacteria to the food people eat.

Larvae that develop in contaminated food can ingest these bacteria. People who eat these contaminated foods or maggots are also exposed to the bacteria and may feel unwell.

Salmonella and E. coli are examples of bacteria that flies and maggots can transmit to humans.

Salmonella

Salmonella is one of the most common causes of foodborne illness. Symptoms of salmonella infection include:

• abdominal cramps
• nausea and vomiting
• diarrhea
• fever

Symptoms usually begin 12 to 72 hours after a person ingests the bacteria, and the illness usually lasts 4 to 7 days.

People with salmonella poisoning often get better without treatment. However, frequent vomiting and diarrhea can lead to severe dehydration and sometimes hospitalization. Therefore, it is important for people with salmonella poisoning to drink plenty of fluids, including clear broths and fruit juices, to replace lost fluids and electrolytes.

E. coli poisoning

There are many different strains of E. coli. While most strains are harmless, some can cause food poisoning.

Here are the symptoms of E. coli poisoning:

• stomach cramps
• diarrhea that may contain blood
• vomit
• slight increase in body temperature, usually below 38.3°C

These symptoms usually develop 1–10 days after bacteria enter the digestive tract and may last 5–7 days.

E. coli infections can vary in severity from very mild to severe, and can sometimes even be life-threatening. As with salmonella poisoning, people need to drink plenty of fluids to prevent dehydration

Fly larvae - application

White maggots, so popular among fishermen, are precisely the larvae of blowflies. Some fishing enthusiasts remove them themselves by laying out pieces of rotting meat. But many still prefer to buy them in the store, since such “farming” has a rather specific smell, which usually deters people from such agricultural production.

Summarize

• For most people living in temperate regions, accidental consumption of a maggot is unlikely to cause harm.
• People may experience temporary bouts of food poisoning if they eat infested maggots or spoiled food containing them. However, most cases of food poisoning go away without treatment within a few days.
• If you experience severe symptoms after accidentally ingesting maggots, you should see a doctor.

Sources

• https://WikiParazit.ru/babochki-i-moshki/chto-budet-esli-sest-lichinku-muhi.html
• https://klopkan.ru/muhi/chto-budet-esli-sest-yaytsa-ili-lichinki-muhi/
• https://izbavitsya-ot-vrediteley.ru/proglotit-muhu.html
• https://www.magicworld.su/zdorove/1067-chto-budet-esli-s-est-lichinku-mukhi.html
• https://komarmuha.ru/chto-budet-esli-proglotit-muhu

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Classification of larvae

There are several types of maggots:

• Maggots are larvae laid by the blue carrion fly. They develop in rotting meat or fish, and a few minutes are enough for a fly to fly to the smell. These maggots reach a length of 15 mm.
• Gozzer is the larva of black-headed blue meat flies. Reaches sizes up to 20 mm and very quickly passes into the pupal stage.
• Gordinies are the larvae of gray blowflies, grow up to 25 mm, and pupate very quickly.
• Pinka is the larva of a green blowfly. Small maggots, not exceeding 10 mm in size.
• Fifa is the larva of a fly of the Lucilia species. Frost-resistant maggots no more than 12 mm long.

Unfavorable outcome, or myiasis

Some myiases are caused by insect larvae, which usually develop in rotting organic matter. This type of disease is called accidental. Such flies and larvae enter the human body with food, clothing or household items.

Swallowed eggs can dissolve in hydrochloric acid, or they can remain intact and be absorbed into the blood. If they enter the bloodstream, they will travel through the vessels to any part of the body. The most dangerous cases are when fly eggs enter the brain, heart or liver. Such cases are quite rare, but still they should not be excluded.

And from the eggs, larvae emerge, which gnaw holes in the host’s body and also send waste products to the body. As the larvae move through the body, the patient feels severe itching, discomfort, and pain. Also, already matured larvae, not eggs, can get inside.

Intestinal myiasis

When a person becomes infected with fly larvae, intestinal myiasis occurs. The larvae live on or inside a person and survive by feeding on his tissues.

Intestinal myiasis is a type of myiasis that can occur when a person eats a fly larva that survives in the gastrointestinal tract. Some people with intestinal myiasis do not experience any symptoms and may only realize they are infected after noticing larvae in their stool.

However, here are some symptoms of intestinal myiasis that you may experience:

• abdominal pain
• nausea and vomiting
• itching in the anus
• bleeding from the rectum

Myiasis is not common in developed countries and occurs primarily in tropical and subtropical countries, including Africa and South America. However, a person may develop myiasis as a result of traveling to these countries.

Fighting uninvited guests

A large fly buzzing under the ear can not only cause a relative inconvenience, but is also a carrier of a dangerous disease. They can infect both food and introduce infection directly into the human blood. Tuberculosis, typhoid fever, cholera are a few of the diseases that flies can infect humans.

The main principle of dealing with them is maintaining cleanliness. After all, as already mentioned, flies perfectly smell food and fly towards it. Empty the trash can regularly, clean up after pets, do not leave food exposed, equip windows with protective nets - these are simple ways that can greatly make a person’s life easier.

After all, despite how long the common fly lives, it is capable of causing us many problems even in its short life. Even if it does not carry the disease, it can be very annoying because it does not have enough insight to understand that it is not welcome here and look for a quieter place. No matter how many times you chase her away, she will come back again and again.

In addition, as she flies around the room, she marks everything with her secretions. Scientists have calculated that one fly can “check in” in at least fifty different places per day. And each of them is a real breeding ground for microbes. So in the fight against flies, the rule that “cleanliness is the key to health” works more than ever.

By the way, not only blowflies, but also small midges that bother you outdoors can also be the causative agent of serious diseases. It causes various conjunctivitis and is the cause of many intestinal diseases.

Preventive measures

To prevent blowflies from breeding, you must follow certain rules:

• In places where the garbage can is located, the soil must be concreted and asphalt laid. This will prevent the larvae from completing their life cycle.
• It is necessary to ensure timely disposal and removal of waste that attracts insects with the smell of rotting. During the warm season, you need to take out the trash from your apartment every day.
• Do not leave meat products lying on tables. To prevent females from laying eggs or maggots, you need lard and rub the meat with salt. The best option is to quickly put it in the freezer. Beef, pork, chicken, etc. may be affected.
• If you want to cook lightly salted fish, you should add more salt to the brine than is required in the cold season. In this way, the product can be protected from malicious worms.
• In the warm season, it is recommended to install mosquito nets on windows and doors, which will protect against many pests from entering the house.
• On livestock and poultry farms, it is necessary to ensure sewage drainage.

To prevent disease and intestinal infection, you need to strictly follow the rules of personal hygiene and food handling. Wash your hands with soap, rinse vegetables, fruits, and herbs thoroughly under running water or pour boiling water over them.

Description

Flies of medium and large size. Body length is about 1 cm (from 5 to 14 mm). The abdomen is dark blue and covered with light hairs. The chest scales are dark and covered with dark hairs. The anterior spiracles of the chest are yellowish. Legs are black. Propleura is hairy. The antennal flagellomere is more than twice as long as the pedicel. The facial carina is absent. The costal wing vein C is covered with hairs from below; the wing scale of the basicost is yellow or light brown. From a closely related species, the black-headed blue fly ( C. vomitoria

), the adult of
C. vicina
is distinguished by two-colored cheeks, their anterior part is reddish, the posterior part is black.
The preimaginal stages are virtually indistinguishable from other species of the genus Calliphora
, and develop in corpses and feces.

In the immune system of C. vicina

Three groups of pharmacologically active substances have been discovered that are promising as a source of drugs to combat cancer and infectious diseases.
These are the families of peptides alloferons (used to treat herpes virus infections and viral hepatitis B), allostatins (which are used to increase the resistance of the skin and mucous membranes to viral infections and are promising in the treatment of cancer) and antimicrobial peptides (drugs for the treatment and prevention of infections).
Peptides such as defensins, cecropins, diptericins, and proline-rich peptides exhibit
antimicrobial activity in C. vicina Plasmatocytes (histiolysocytes) of the larvae of the blowfly C. vicina
constitute the main part at the end of the development of the preimaginal stage and during the period of larval diapause.
The cytotoxic activity of C. vicina
is similar to the activity of cells known as natural killer cells in representatives of the class of mammals.
Plasmatocytes of C. vicina
larvae, as well as natural killer cells of mammals, can recognize target tumor cells (for example, human leukemia cells) as “foreign”, after which they form a temporary conjugate with them and cause the process of apoptosis, which leads to the death of the attacked target.

Hippobosca equina

Hippobosca equina fly or horse bloodsucker
Giant insects include the Hippobosca equina fly or horse bloodsucker. A representative of this species is distinguished by its large size (body length can be 6-8.5 cm), wide chest and fairly strong wings. On the shiny brown body, the yellow pattern on the chest side stands out clearly. The oral apparatus consists of large powerful jaws, identical to sharp knives.

Young individuals have wings and lose them after attacking their prey. The latter are usually horses and cattle. The insect clings to the tail, belly or thighs of the animal. A fly bite causes skin irritation, which causes great discomfort. Moreover, only females bite in order to feast on the blood of mammals during the mating season. The rest of the time, the huge fly is harmless, as it feeds on nectar and pollen of plants.

Nutrition

Unlike other less exotic bloodsuckers, which need blood only to initiate the reproductive function, these African flies feed on blood from both sexes.

The tsetse flies up to the victim silently and it is often impossible to notice it before the attack. Because of this feature, the fly is called the “silent killer.” Tsetse attacks mostly large mammals, which is why they tried to fight it by exterminating wild animals. Until it turned out that this insect doesn’t really need mammals:

• Palpalis feeds on the blood of reptiles and humans, only occasionally attacking other mammals;
• Fusca prefers mammals, including humans and cattle;
• Morsitans has the broadest feeding preferences, including small birds, domestic animals, bovids, warthogs and humans.

Two species from the last group also divide people into zones. One of the species bites on the face, another on the legs.

During one meal, the insect drinks as much blood as it weighs, swelling to twice its size. There is evidence that some types of tsetse flies are capable of absorbing twice their own weight in blood. But then they definitely won’t fly anywhere.

When approaching the prey, the fly “switches” to searching using the carbon dioxide and acetone released. Thanks to this feature, fairly effective traps for tsetse flies have been created. Having sensed the victim, the insect becomes very aggressive and persistent. If you just stun her, she will still try to get to the victim and bite. The aggressor is active only during daylight hours.

Only zebras, which are invisible to flies due to their striped coloring, do not suffer from tsetse attacks.

Notes

1. Striganova B. R., Zakharov A. A.
   Five-language dictionary of animal names: Insects (Latin-Russian-English-German-French) / . - M.: RUSSO, 2000. - P. 336. - 1060 copies. — ISBN 5-88721-162-8.
2. ↑ Vinogradova E. B.
   Flesh fly (Calliphora vicina) - a model object of ecological and physiological research / Tobias V. I. - L.: Nauka, 1984. - 272 p. - (Proceedings of the ZIN AS USSR, vol. 118).
3. ↑ (the name blue blowfly appears in the abstract)
4. ↑ Shtakelberg A. A.
   Synanthropic dipteran fauna of the USSR // Keys to the fauna of the USSR. Issue 60. - M.-L.: Publishing House of the USSR Academy of Sciences, 1956. - P. 82, 153-154.
5. The Russian name of the species has not been established. In the specialized literature (for example, Grunin, 1970) it appears under the Latin name. In popular identification books for students and schoolchildren, the names red-headed blue fly
   (Plavilshchikov, 1994: p. 365) and
   red-headed fly
   (Mamaev et al., 1976: p. 283) are found.
6. ↑ Key to insects of the Russian Far East. T. IV. Diptera and fleas. Part 4 / under general. ed. P. A. Lera. - Vladivostok: Dalnauka, 2006. - P. 20, 31 and 32. - 936 p. — 500 copies. — ISBN 5-8044-0686-8.
7. Grunin K. Ya.
   Gasterophilidae, Calliphoridae, Oestridae, Hypodermatidae (Diptera) of the Soviet-Mongolian expedition of 1969-1971 (Russian) // Insects of Mongolia: Journal. - L.: Nauka, 1975. - Issue. 3. - pp. 620-627 (p. 609).
8. Kind T.V.
   Hemocytes of the blowfly Calliphora vicina and their dynamics during the development of larvae and induction of metamorphosis (Russian) // Tsitology: Journal. - 2003. - T. 45, issue. 10. - pp. 14-25.
9. Zachary D., Hoffmann JA
   The haemocytes of
   Calliphora erythrocephala
   (Meig.) (Diptera) (English) // Zeitschrift fur Zellforschung: Journal. - 1973. - Vol. 141. - P. 55-73.
10. Chernysh S.I.
    Insects protect themselves: molecules and cells of the immune response (Russian) // St. Petersburg University: Journal. - 2000. - T. 20 (3543). — P. 11-12.
11. Chemysh S., Filatova NA, Chemysh NS
    Cytotoxic activity of blow fly
    Calliphora vicina hemocytes
    (English) // J. Insect Physiol. : Magazine. - 2004. - Vol. 50. - P. 777-781.
12. Tulin D.V., Chaga O.Yu.
    Hemocytes of
    Calliphora vicina
    . Histological analysis (Russian) // Cytology: Journal. - 2003. - T. 45, issue. 10. - pp. 976-985.
13. Gomes L., Godoy WAC, Zuben CJV
    A Review of Postfeeding Larval Disposal: implications for forensic entomology (English) // Naturwissenschaften : journal. - 2006. - Vol. 93, no. 5. - P. 207-215.
14. Derbeneva-Ukhova V.P.
    Synanthropic flies // Guide to medical entomology. - M.: Medicine, 1974. - P. 176-203.
15. Lang MD, Allen GR, Horton BJ 2006. Blowfly succession from possum (Trichosurus vulpecula) carrion in a sheep-farming zone. Med Vet Entomol. 20
    (4): 445–452.
16. Battan Horenstein M., Linhares AX, Rosso B., García MD 2007. Species composition and seasonal succession of saprophagous calliphorids in a rural area of ​​Córdoba: Argentina. Biol Res. 40
    (2): 163–171. Epub 2007 Nov 21
17. Catts P., Haskell N. Entomology & Death: A Procedural Guide
    , Joyce's Print Shop, Inc., 1990.
18. Arnaldos MI, García MD, Romera E., Presa JJ, Luna A. 2005. Estimation of postmortem interval in real cases based on experimentally obtained entomological evidence. Forensic Sci Int. 149
    (1): 57–65.
19. Gennard D.
    Forensic Entomology: An Introduction. — Wiley, John & Sons, Incorporated, 2007.
20. Simpson DP
    Cassell's Latin Dictionary (undefined). - 5. - London: Cassell Ltd. (English) Russian, 1979. - P. 883. - ISBN 0-304-52257-0.
21. Jean Baptiste Robineau-Desvoidy.
    Essai sur les myodaires (French) // Mém. Pres. Div. Sav. Acad. R. Sci. Inst. Fr. : Magazine. - 1830. - Vol. 2, no 2. - P. 1—813.
22. Dear, James P.
    Calliphoridae (Insecta: Diptera) // Fauna of New Zealand, Number 8. - Wellington: DSIR, 1985. - P. 14, 20, 26. - 88 p. — ISBN 0-477-06764-6.

Nutrition

The house fly is diurnal and quiets down at dusk. During daylight hours, it searches for food and lays eggs. The house fly is a polyphage and feeds primarily on liquid food. Favorite dishes are fruit juices, jam, honey, syrup. In severe cases, when there is no other food, he eats sugar, cookies, bread crumbs, and candy.

There is no digestive system as such. Digestion of food occurs externally. The same feature is present in the larvae. Initially, the insect sprays a special secretion - saliva, which liquefies the food. After which the housefly calmly sucks up the liquid product. Digesting solid food requires more effort, so insects do not like this food very much.

Appearance

In the photo, burner flies are almost indistinguishable from ordinary house flies. This is explained by the fact that both species are very similar in morphology and biology. The average body length of this type of fly is 7 mm. The zhigalka is gray in color with dark stripes on the chest and spots on the belly. The yellowish color of the lower part of the abdomen, like that of a housefly, is absent in the zhigalka.

Like the housefly, males and females can be distinguished by the distance between the eyes and the size of the insect. The female has wider eyes and is larger.

The burner also has some differences:

• in a calm state, the wings of the burner are spaced wider;
• the proboscis is directed forward like the proboscis of a tsetse fly.

The proboscis is adapted for feeding with blood and has chitinous “teeth” at the end to penetrate blood vessels and sucking plates for feeding. Both the female and the male feed on blood.

Fly fly

Prevention

Of course, it is always easier to prevent a problem than to fix it. Therefore, it is necessary to maintain basic sanitary and hygienic conditions:

• dispose of household waste in the house in a timely manner;
• do not leave uncovered food on the table;
• place a mosquito net on the windows;
• Clean pet pens regularly;
• examine animals for wounds to avoid infection with green fly larvae;
• treat manure heaps with biothermal agents;
• promptly dispose of the corpses of dead animals, as well as pests such as rats, moles and others;
• Disinfect latrines with insecticides.

Tansy essential oil repels flies, causing paralysis of their limbs. Bouquets of these flowers, hung in a livestock room or standing in a vase in an apartment, will help get rid of annoying flies for a long time.

Varieties

Large, with bright, noticeable colors, blowflies stand out in metallic shades of green and emerald.
They can be seen sitting on fences, walls and trees, as this type of fly prefers not to bother with long flights. Fly larvae develop on animal corpses and fish waste, not disdaining cesspools. Adult flies also feed on meat and sweet fruits.

One of the most colorful blowflies. Measuring no more than 12 millimeters in size, the fly is extremely conspicuous with its yellow head spotted with black, prothorax spotted with orange, and blue metallic coloring. The blue fly prefers corpses as a cradle for offspring, which is why it is very familiar to criminologists, who judge the time of death by the degree of maturation of the larvae and pupae.

Common gray

Colored in dull gray tones, flies are often found in areas of rotting biological waste. Larvae laid by viviparous females live in rotting meat or parasitize on the larvae of other insects.

The human gadfly carries such a dangerous disease as dermatobiasis. Read this article to learn how to protect yourself from this insect.

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Where do fruit flies come from in an apartment?

Maintaining an almost sterile cleanliness in the home is the main guarantee that fruit flies will not appear in the apartment. But only on condition that it is possible to maintain the same sterility throughout the entire house. Fruit flies will take up residence in the garbage chute, which is removed once a day. Or a neighbor who keeps a bowl of fruit on the table and doesn’t really care about their freshness. At the first opportunity, fruit flies will show themselves in the apartment.

There are several ways where fruit flies come from:

• “come” to the house with purchased fruits;
• insects or eggs can be carried into the house on shoes or clothing;
• they fly in from the garbage chute, if there is one in the house;
• enter from a neighboring apartment through a ventilation hole;
• They have been living indoors for a long time somewhere in a flower pot.

Flies of this species can live and breed in flower pots, since there is always rotting organic matter in the soil. And this means warmth and food. Feeding plants with tea leaves, popular among amateur gardeners, means another feast for fruit flies.

It’s enough to not remove food leftovers from pets in time, and small flies are already hovering over them. A spilled drop of tea, milk, or juice will serve as food for these insects. A trash can that is not taken out on time is a paradise for breeding.

If there is a neighbor in the house who is seriously interested in terrariums or aquariums, he breeds fruit flies for his fish or reptiles.