In laying hen facilities, the ectoparasite Dermanyssus gallinae (PRM=poultry red mite), is a common and serious pest in many parts
of the world that is hard to control. Moreover, a PRM population negatively
affects hen health, -welfare and farm economics, with estimated costs of
infestations reaching 130 million euro per year in Europe. Integrated Pest
Management (IPM) is a sustainable method including 8 steps of which prevention and monitoring are key for improved control of pests and diseases. In laying hen facilities, implementation of IPM for PRM has been limited so far. The aim of the research described in the thesis was to advance IPM for PRM in laying hen facilities and resulted in 1) a checklist for farmers with advice on measures to prevent introduction and spread of PRM in laying hen facilities, 2) a technically and financially viable automated mite counter and 3) a model forecasting the population dynamics of PRM and evaluating treatment effect. The results of this study can be expected to improve hen health, welfare and farm economics for the egg production sector.