Abstract
This article presents the results of observations conducted to study the development, density and interrelationship of the first generations of the sap-eating pest that overwintered in the field with the entomophagy of the goldenrod. The results of the study showed that sap-eating insects colonize weeds at a very high density from early spring to the end of May. The ratio of goldenrod to sap-eating insects remained from 1:1073 to 1:207.