The poultry red mite (Dermanyssus gallinae) is a tiny parasite with the following characteristics:

• Size: only 0.6–1 mm – barely visible to the naked eye
• Colour: grey-white during the day, bright red after feeding on blood (hence the name)
• 8 legs – it belongs to the arachnids, not the insects
• Oval-shaped with a flat body
• Hides during the day in cracks and crevices in the house – at night it attacks the chickens

Effects on animal health and performance

A heavier infestation is often associated with itching, skin irritation and pain and can cause restlessness in the flock. In severe cases, anaemia can occur. In practice, links with the following factors are observed:

• Drop in performance, e.g. lower laying performance and weight gain
• Weakening of the body's own immune system, i.e. increased risk of infections or bacteria, increased mortality

Transmission routes between flocks

The mite is introduced via transport crates, clothing, wild birds and conveyor technology. Operating procedures, hygiene and monitoring play a central role in prevention.

Limits of conventional control

• Use in occupied houses often not possible; in some cases withdrawal periods for meat or eggs
• Resistance development possible; health risks for users, e.g. for the respiratory tract
• The problem often returns

Classification of our products

Effective, practical strategies with a systematic approach – supplemented by house hygiene, for fast control of the poultry red mite.