EN
The study was conducted in 2003–2006 at three plantations in the Lublin environs. Preliminary studies on highbush blueberry plantations showed the presence of numerous leafrollers caterpillars. For this reason, it seemed appropriate to determine the abundance and population dynamics of these insects in the subsequent years. Own studies showed the presence of total 1131 larvae and pupae of leafrollers belonging to 13 species. A dominant species was Archips rosana L. The number and dynamics of Tortricidae larvae and pupae varied depending on the year and location of plantation. Caterpillars fed on top and soft leaves without damaging the flower buds and developing fruits.