The purpose of experiments conducted during five years in an apple orchard and indoor conditions was to economise the collection and introduction of predatory mite (Typhlodromus pyri Scheut. Phytoseiidae), the effective predator of spider mites (Tetranychidae) in the orchards. It was found that collecting T. pyri in cloth belts in orchards was the efficient and economical way to gain high amount of predators for introduction. In order to avoid very high winter mortality of predators in Polish conditions the belts were transfered in autumn from the orchard to the room with stable temperature O°C -+ 1°C and high humidity. Keeping the belts with predators in outdoor condition in polivinyl boxes kept in shadow allowed also to avoid high mortality of overwintering T. pyri.