Exhausted fleas apartment tenants and pet owners in unsuccessful struggle with parasites sometimes start to forget that fleas, in general, are the same insects as butterflies, cockroaches or, say, mosquitoes. Therefore, there is nothing surprising in the fact that fleas are afraid of many substances, smells, cold, loud sounds and much more, which can be used in practice to combat small bloodsuckers.
About what exactly are afraid of fleas and how it can be used to combat them, we'll go on and talk in more detail.
Insecticides as the main fear of parasites
The greatest fear and, so to speak, horror for fleas are substances that are destructive to their body and lead to destabilization of the nervous system. Fleas are well aware of these compounds and are afraid only of their smell.
In practice, in most cases, leave the room in which such smells have appeared, insects can no longer - simply do not have time, dying from the action of the insecticide. But having smelled such a smell on the processed animal (for example, if droplets on the withers or an insecticaricidal spray were used), parasites no longer treat the pet as their next victim and do not jump on it.
It is interesting
Effects on fleas of insecticides of contact action usually begin with peripheral nerve endings. After this the parasite begins to develop paralysis of separate parts of the nervous system up to the central nerve nodes. Finally, the flea loses the ability to move, its internal muscles come in a strong tone (spasm), and it dies from stopping the movement of blood in the body. With a sufficient concentration of insecticide, it all happens very quickly, literally for several tens of seconds. Even having received a very small insect dose, the fleas experience very unpleasant sensations, and therefore it is not surprising that they are afraid of such substances (it is more correct, of course, to say - they avoid such substances, since insects are unlikely to fear in the usual sense of the word) .
Such substances, which present a serious danger to fleas, include:
- Some compounds that are part of all known Dichlorvos, Carbophos and a number of other preparations for fighting insects. They are to some extent toxic to animals and humans, and therefore are used usually only for the treatment of premises, while for the treatment of cats and dogs, substances of a different chemical nature are used. Fleas are afraid only of their smell, and therefore even having sensed the remedy from the next room, in the literal sense of the word are retired.
- Pyrethrins and pyrethroids are insecticides that are not toxic to warm-blooded animals, but are very toxic to fleas and insects in general. Pyrethrins are natural components of plants among them, and pyrethroids are their synthetic analogues. These substances include, for example, Permethrin, Fenotrin, Cypermethrin, Deltamethrin, Ethofenprox. They are part of Raptor, Klopomora, FAS, Medilis-Ziper and others, and from animal treatments - in some anti-flea collars, drops of Zipam, Sentry, Bars, and various sprays.
- Fipronil and Imidacloprid are a new generation of insecticides that have low toxicity for animals and humans. The fleas have the same effect as the previous substances. They are most often used in the most effective and safe means to rid animals of fleas - in the drops Front Line, Hartz and others.
Although pyrethroids are considered to be of low toxicity, some animals can react sharply to getting them into the body. Cats are especially sensitive to them. Nevertheless, these substances are a part of many means for disposal of animals from fleas - at their correct use the risk to poison an animal is minimal.
There are a number of other insecticides that fleas are also afraid of - many insect remedies in everyday life or agriculture have not only destructive but also deterrent properties. In the case of such drugs, the effect usually depends on the distance and concentration - near the insects they destroy, and from a distance - they are mostly scared away.
Extreme temperatures, sun and water
Fleas can live and develop normally only within certain limits of the physical conditions of the environment, the escape for which they carefully avoid.
For example, fleas are afraid of cold. For most species of fleas that end up in flats (here primarily feline, dog, rat and human flea), temperatures around -15 ° C are already uncomfortable, at -10 ° they stop multiplying.
Accordingly, frosts and the whole cold of the fleas are afraid not less than the poisonous substances. Therefore, in winter, flea-infested rooms are useful to freeze regularly. This is especially true for hens and cows.
Fleas are afraid of too high temperatures. At + 45 ° C, cat and rat fleas begin to die. Therefore, for example, when the bedbugs are destroyed with the help of industrial fan heaters, fleas are also killed.
It is also useful to consider that fleas are afraid of water. When bathing fleas infected cats and dogs, most of the parasites try to get out of the hair and do not get into the water , so if the fleas can not be urgently harassed, regular bathing can significantly alleviate the suffering of the infected pet.
On a note
For all the dislike of fleas to the water, it can not be used as a deterrent against these parasites in the apartment: even if you regularly wash the room and spray it with water, the fleas will not go away from it. We can say that fleas are afraid of water only when they are threatened by oxygen starvation due to a full immersion in the water.
Also, fleas do not like direct sunlight and, after hitting a well-lit place, try to get away as quickly as possible from it.
Effects of chemical odors on fleas
Fleas are very sensitive to smells. In many respects this is a consequence of their parasitic way of life - almost all bloodsucking insects have a strong sense of smell, and their harsh chemical scents frighten them.
For example, the following odors are among the most unpleasant for fleas:
In general, fleas are afraid of the smell of many aggressive chemicals. Thus, insects quickly disappear from the room in which the painting of walls or other work with paintwork materials on organic solvents, they do not like the smell of putty and cement.
The downside of such strongly smelling repellent substances is that next to similar flavors it is difficult to live with a man with pets.
Strong natural odors
But the natural smells of plants that do not like fleas - an excellent way to scare them out of the apartment. Here, every owner of the premises can choose the fragrance that suits him, but which can cause the parasites to get out of the room.
Among the most famous are:
- juniper, pine and other conifers
- essential oils of walnut, camphor, aloe
It is important to remember that for effective scaring, these flavors should be strong enough - just spraying in the room with an air freshener will not be enough. In the ideal case, the same wormwood, tansy or other grass from fleas should be laid out in the corners of the apartment in the form of brooms of their fresh bushes, and lavender or eucalyptus used as fumigators.
Nevertheless, the smells of herbs and plants will not help to completely get rid of fleas in the room. They can only scare off parasites from the bed or bedding of the dog for a short while, but when the insect faces the problem of choosing to tolerate hunger or smell, it will, as practice shows, overcome its fear of the same wormwood. Thus, such remedies are good only as a preventive measure - they should be kept where they can scare off fleas before they appear and multiply.
Natural enemies of fleas
There is also a certain set of species of living beings that themselves parasitize fleas or simply pose a danger to them. Accordingly, in the natural habitat of fleas they are also afraid and avoided.
On a note
Parasites parasitizing on other parasites are called superparasites. And this is not just a pun, but a definition from the textbook on entomology. Examples of superparasitism in nature are huge - in the class of insects there is even a whole team of riders with many thousands of species of insects that can parasitize on most other insects, including parasites of animals and humans.
So, on the fleas and their larvae actively attacked by ants, including ordinary domestic pharaoh ants.
It is not known which of these opponents is less desirable in the premises for the owner, but in the presence of a colony of ants in the apartment, fleas in it are unlikely to be able to reproduce normally (their larvae will be particularly vulnerable).
Fleas also suffer from fungal infections and nematodes, but it is impossible to use this with any practical results.
What fleas are not afraid of: do not let yourself be deceived!
There are also persistent myths about the effects and devices that the fleas are not afraid of, no matter how much the advertising agents scream. For example, fleas from a room are almost impossible to scare off by various ultrasonic devices or means generating electromagnetic waves. Advertising of such devices today is massively fed through all means of communication, but the practical experience of using these tools does not confirm their effectiveness.
Also fleas are indifferent to all kinds of prayers and conspiracies, which are still popular with the older generation. Perhaps, somewhere in the outback today using these methods and trying to derive parasites, but in practice it is checked: they all do not work.