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Biology

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The reproductive cycle of the Red Mite (Dermanyssus gallinae) is very fast and can be completed in just 6-7 days. The female lays her eggs in groups of 7 or more, after 1 or 2 days after having completed a blood meal.

The eggs are laid in small cracks or crevices, always near the selected host. At a temperature of 27-28 °C the eggs hatch in 1-2 days, with the larval phase lasting for one day and the nymphal phase 5-6 days.

The Dermanyssus gallinae (poultry red mite) is about 0,7-1,0 mm in size. The female lays 30-50 eggs in cages and walls crevices. The larvae that hatch are hexapods which in the next stages transform into eight-legged nymphs and then into adulthood. The cycle of the parasite, in optimal conditions with a temperature of 25-30 °C, takes place in a week and the adult lives from 4 to 6 months. Even if there are forms of resistance to fasting where it can last more than six months. The Dermanyssus gallinae is a known carrier of pathogenic microorganisms and viruses that can also infect animals causing serious diseases and, in particular cases, the death. Among the potential diseases that may be transmitted by red mite are salmonellosis, listeriosis, Newcastle disease and avian pox.

It is therefore essential the use of effective techniques to contrast the phenomenon.