Из‑за чего появляются блохи дома? - briefly
Fleas are introduced by infested animals—pets, rodents, or stray wildlife—and survive in warm, humid areas where blood meals and organic debris are available. Inadequate cleaning, untreated carpeting, and lack of regular pet antiparasitic treatment sustain their population.
Из‑за чего появляются блохи дома? - in detail
Fleas infest a residence when conditions allow their life cycle to be completed inside the domestic environment. The parasite requires a blood‑feeding host, a suitable microclimate, and a medium for egg and larval development.
Common sources of introduction include:
- Pets that have contacted infested outdoor areas or other animals; adult fleas jump onto the animal and are carried indoors.
- Stray or feral animals that enter the property, such as cats, dogs, or rodents.
- Used furniture, carpets, or bedding that already contain flea eggs, larvae, or pupae.
- Clothing, luggage, or equipment brought from infested locations; adult fleas may hitchhike and disembark later.
- Wildlife activity around the house, especially in gardens, sheds, or under decks, where adult fleas drop off and later migrate indoors.
Environmental factors that favor establishment:
- Temperatures between 20 °C and 30 °C, which accelerate egg hatching and larval growth.
- Relative humidity above 50 %, preventing desiccation of eggs and larvae.
- Accumulation of organic debris (pet hair, skin scales, dust) that serves as food for larval stages.
- Lack of regular vacuuming or steam cleaning, allowing pupae to remain dormant in cracks and carpet fibers until stimulated by host vibrations.
The flea life cycle proceeds as follows:
- Adult female deposits 20–50 eggs on the host; most eggs fall into the surrounding environment.
- Eggs hatch within 2–5 days, releasing larvae that feed on organic matter.
- Larvae spin cocoons and enter the pupal stage; pupae can remain dormant for weeks or months.
- Emerging adults seek a blood meal, usually from a pet, and the cycle repeats.
«Ctenocephalides felis» is the species most frequently encountered in homes, accounting for the majority of infestations. Control measures focus on eliminating the host reservoir, treating animals with appropriate ectoparasitic products, and reducing environmental reservoirs through thorough cleaning, steam treatment, and, when necessary, insecticidal applications.