EN
Studies on food preference of Schizotetranychus schizopus Zacher were carried out on 11 willow species grown in Poland. Feeding of females of S. schizopus placed on leaf disk of selected willow species lasted the longest on S. fragilis and S. triandra. Meanwhile, phase of initial feeding of S. schizopus was the shortest. Time spent on searching for food varied and the longest one was on S. aurita, S. cinerea and S. caprea, while the shortest on S. fragilis and S. triandra. However, if females of S. schizopus had for a choice 11 willow species, then they most preferred the species S. fragilis, S. rosmarinifolia, S. triandra, S. alba, S. pentandra and S. purpura, and the species least S. aurita, S. cinerea and S. caprea the least.