What is the white bug on the cat?

Fleas are small, wingless jumping parasitic insects. Adults usually live in mammals and a few live in birds. Antennas are thick and short. The mouthparts are sharp and used for sucking. The abdomen is wide and has 9 knots. The hind legs are well developed and strong. Totally perverted insect. Pupae are wrapped in cocoons.

There are many lodging bristles on the body, which can help it move in the hair of the host animal.

Flea's shell can protect life best and can bear 90 times the weight of the body! There is a saying that a person's body.

Body, if there is a shell similar to a flea's body instead of today's body, then people can fall off the hard ground from 1000 meters and be safe, and they can also bear the heavy weight of 1000 kilograms from 1000 meters.

It also has two strong hind legs, so it is good at jumping and can jump seven or eight inches high. A flea can jump 350 times its own length, which is equivalent to a person jumping over a football field. Fleas usually jump on their hosts and stay. They can ovulate in two days. Female insects lay their eggs in dusty corners, small holes in walls and floors, or they can lay their eggs on animals and land or migrate with the activities of animals. Egg white, white legless larvae hatch in about four or five days, and the larvae feed on dust and organic matter in flea feces. After two weeks, the larvae spun silk, and the dust formed cocoons and pupated in them. In another two weeks, the fleas came out of the cocoon. If fleas come into contact with animals, there will be a danger of sucking blood immediately, so when eliminating fleas, the holes in the walls and the ground should be filled with lime or mud.

Edit this paragraph as a flea.

Cat flea

When biting the skin and sucking blood, black granular stool will be discharged, which, like dust, is often mistaken for flea eggs. When you open the fur, sometimes you can't find fleas, only piles of "black sand". These "black sand" will dissolve into blood color when it meets water, so it is easy to tell that it is flea defecation rather than dust. Adult fleas can eat nothing for 12 months, and get nutrition by sucking blood whenever possible. Because fleas have no specific host, they can parasitize all kinds of hairy animals, even hairy inanimate objects (such as carpets). Therefore, only controlling fleas on pets cannot eliminate fleas. Female fleas will ovulate on the host (animal) after sucking blood. Eggs are as white as salt particles, non-sticky and easy to fall off. They may hatch larvae within 2 days to 2 weeks after spawning, and the larvae are white or milky white. They usually hide in cracks in the floor, under carpets and under pet beds. Larvae only eat a small amount, such as adult feces or organic debris in the environment (human or animal dander, food residue, etc.). ), and then they will become cocoons. After that, fleas can depend on the environment

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The situation is different. It becomes a flea adult within 7 days to several months. When there are many fleas on pets, their eggs can be found together with black flea dung. If red stains are found, they are formed after their feces get wet.

Fleas may lay eggs under the fur of animals, or they may lay eggs on fabrics and carpets. Fleas outside animals will starve to death if they don't suck blood, but eggs can survive the winter with eggshell protection When they bloom in spring, they hatch and return to the animals for parasitism. Therefore, when there are pets such as cats and dogs at home, it is best not to use carpets, which are hotbeds of fleas. In addition, the outdoor grass is also a hotbed for fleas to lay eggs, because dogs and cats will move on the grass.

Fleas look for "prey" through heat sources. The newly hatched larvae are eager to suck blood, and they will jump hard after finding the location of the host by identifying the direction in which the animal body releases heat.

Harm to human body

For allergic people, flea bites may cause some skin diseases.

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Students, especially in summer, have pets such as cats and dogs at home. If the pet is not clean, fleas and other parasites will breed, which will easily lead to seasonal eczema after biting the human body.

Yersinia flea is a very small bacterium that can cause plague. This kind of bacteria is transmitted to humans through fleas (rat fleas) on mice. After fleas suck the blood of plague patients, their stomachs are full of Yersinia pestis, and their esophagus is blocked by bacteria. Although it is a rat flea, it sometimes bites people. When this flea with bacteria inhales blood, because the esophagus is blocked by bacteria, blood flows back from the mouth to the bitten body, and Yersinia pestis enters the human body at this time, making people suffer from plague. Fleas may also excrete feces on human skin when sucking human blood, which also contains a large number of Yersinia pestis. Because the bitten part will itch, when it itches, it will bring plague bacteria into the tiny wound, and people will also be infected with plague.

Flea bites will produce a little red dot the size of a nuclear grain.

Edit this drug to prevent indoor fleas. Use mothballs, pure mothballs, which can float in water. Experiments have found that fleas will die in a few hours in a space full of mothballs, so the mothballs are ground into powder and scattered in every corner of the room and where the fleas are infested. Then try to close the room and ventilate it for a day or two to find the dead fleas.

Among pyrethroid insecticides, cypermethrin (Kung Fu) and deltamethrin (Kesulin) have strong contact toxicity and stomach toxicity, quick action and long lasting effect, which can quickly reduce the index of free fleas on the ground. Easy to use, directly diluted with water,

Can give full play to the drug effect, has good dispersibility, is safe to animals, has no irritating smell and has no corrosive damage to the surface of objects. Deltamethrin also has certain ovicidal effect.

Among organophosphorus pesticides, chlorpyrifos is a kind of drug with good control effect on health pests. The diluted spray of chlorpyrifos EC has a high contact killing effect on fleas. Although dichlorvos is highly toxic to people and animals and corrosive to the surface of copper and iron products, it can be used properly in indoor large-scale flea killing because of its characteristics of fast knocking down and strong fumigation, and its price is low.

When spraying chemicals, it is most important to choose dosage form, concentration ratio and correct use method according to the actual situation. In addition, operators should pay attention to safety and wear protective clothing, hats, masks and gloves.

There is also a saying that the smell of sweet and sour garlic can kill fleas, but it can't kill them. The simple way is to put a glass bottle in the corner, which is filled with appropriate amount of sweet and sour garlic and the juice of submerged garlic, and sealed with gauze or something breathable.

Edit this paragraph to kill fleas. To eliminate fleas, you should fill holes in walls and floors with lime or mud, wash them frequently, and keep them dry and hygienic. You can also spray pesticides to kill them. Family flea control As far as the general family is concerned, the main measure to kill fleas is to clean the body surface of pets and continue to use some pesticides with high efficiency and low toxicity. Ordinary families should be sober enough when buying and using pesticides. First of all, they should control the dosage, enough is enough, and try not to use it when not in use. Secondly, leave the scene immediately after spraying pesticides. After 2 hours, open the doors and windows and fully ventilate before entering the room. Furthermore, infants and children with impaired brain development must not be exposed to pesticides to avoid adverse effects on brain development and physical health. In addition, when using pesticides in the kitchen, pay attention to avoid polluting food and cookers. Because most insecticidal aerosols are flammable, they should not be used in the kitchen, because open flames are used in the kitchen to avoid fires.

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Chinese medicine to kill fleas: 20 grams of Stemona root, soaked in half a catty of alcohol for 24 hours, and then sprayed to kill fleas quickly. (Non-toxic and odorless) Office flea control is not effective in areas with large spread, such as storefronts, offices, workshops, warehouses and furniture factories. Only by some pesticides, water and simple equipment. Only by using professional instruments, choosing the right drugs and adopting the right methods can the ideal effect be achieved. According to the characteristics of fleas chewing in the mouth of the last larva, sucking in the mouth of adults and parasitizing freely, manual sprayers are used to spray drugs in large areas indoors in practice. Use portable electric ultra-low volume sprayer to spray drugs into space. Portable electric ultra-low capacity sprayer. This machine is characterized by fine droplets and high concentration of liquid medicine, and the volume median diameter (VMD) of droplets is generally below 50 microns. It is suitable for space spraying and retention spraying, and is an ideal sanitary disinfection instrument. Fleas in the warehouse are extinct because of the high density of wild cats or mice, and they are also brought from outside by carrying things. Therefore, flea control in warehouses should be combined with rodent control in peacetime, including rodent control.

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Nest, rat hole, wild cats, dark corners indoors, etc. And kill the remaining adult fleas and their larvae with various insecticides.

In practice, people have summed up a one-time flea killing method of "ground cleaning and aerial bombing". It is a combination of manual sprayer and portable electric ultra-low volume sprayer, and more than two drugs are used at the same time. Therefore, the large-scale indoor flea control work has achieved the greatest effect, and the one-time flea control rate is 100%.

Edit this virus spread 1. If you are bitten, you can apply some toilet water, essential balm or soap to relieve itching and diminish inflammation. If you have pets, you need to do a good job of pet hygiene first. If you meet a cat or a dog, you'd better stay away from it. 3. Pay attention to the hygiene at home. You can also spray disinfectant on the wall. Please pay attention to the instructions and precautions before spraying. Avoid getting hurt. 1. Close-fitting clothes are boiled, and large clothes and mats are scalded with boiling water; 2. Insecticides (pyrethroids must be used, which are highly toxic to warm-blooded animals and cold-blooded animals. Be careful not to spray or let them float on fish tanks or turtles), bed spray boards, dormitory floors and corners; 3. The most critical step: 10% sulfur ointment is sold in pharmacies and it is very cheap. A piece of 50 cents is 10g, and it is evenly applied to the body and the mat for several days. Don't be afraid to get dirty. The sulfur in sulfur ointment is harmless to people, and only when it touches the surface of human skin can it play its greatest role. It tastes a little bad, but it is completely harmless, and it can basically kill all surface parasites. Usually take a bath with sulfur soap. 4. Buy some hormone drugs, such as dexamethasone acetate, and apply them to the bitten bag (note that sulfur is an oxidant, which may react with dexamethasone acetate to make it ineffective, so you know how to do it). Prevent you from scratching involuntarily and scratching your skin when you sleep. This inefficient hormone is used externally and has a high safety factor. You can use it for two or three weeks, but usually your bag will disappear in about three days.

There are many natural mysteries about whether fleas fly or jump, which have aroused great interest of biologists and aviation experts.

Fleas are only 0.5~3 mm long, but they can jump 350 mm, which is equivalent to 120~700 times their length. If fleas are as big as people, they should jump 200~ 1 100 meters. Fleas jump every 4 seconds 1 time, and can jump continuously for 78 hours, jumping at the weight of 140 times. From this, the jump acceleration is calculated, which is equivalent to the speed of the spacecraft.

But according to the experimental measurement, flea muscles can only produce110 of the strength needed for jumping, so where does the strength of 9/ 10 come from? Aircraft designers are very interested in this. They commissioned a biologist and a science photographer to do the research. As a result, it was unexpectedly found that fleas could not jump at all, but flew by elastic "wings" on their legs.

Edit this paragraph flea effect Source: "Flea effect" comes from an interesting biological experiment. Biologists put a flea in a glass and it jumped out easily. Then put the flea in a covered glass. It jumped up again and again and was hit again and again. Finally, the flea became smart and began to adjust its jumping height according to the height of the lid. Take off the lid after a week, but the flea can't jump out anymore.

Revelation of flea effect: The reason is simple. Fleas adjust their jumping target height and adapt to it, and never change. Many people dare not pursue their dreams, not because they can't catch up, but because they default to a "height" in their hearts. This "height" will often limit them, so that they can't see the exact direction of their future efforts. There is such a story that someone asked three masons, "What are you doing?" A said, "Build a wall." B said, "Make money." C said, "Build the most distinctive buildings in the world." Later, the first two were mediocre, and only the third one became a famous architect. Because he knows the relationship between his small goal of laying each brick and a magnificent building in the future.