Literature data as well as investigations conducted by us confirm the reliability of mercury lamps in scientific activity (collecting, study of the dynamics of its population etc.) as well as in practical use (the extermination of harmful insects). During the years we have been investigating traps with different sources of electric light and different attractants (sex attractants, smell strong substances). The investigation showed their effectiveness in fight the pest). The type of landscape and abiotic factors were taken into consideration. The investigations of this kind in mountains were conducted for the first time.