The adults live and lay eggs for up to 4 years, are flightless and feed upon the bark of small roots and twigs and on the needles of its hosts. Lodgepole pine can have chronic weevil infestations around the root collar area throughout the rotation. Trees less than 6 cm diameter can be girdled and killed. Otherwise, larger diameter trees seem to survive one or two feeding larvae. Abies , Salix , and Picea .
Mortality can result from root collar girdling as well as reductions in growth.
Trees from 6-8 year sold to maturity are attacked. Larval damage also provides an avenue for infection by root-rotting fungi. This weevil may seriously hamper the establishment of pine plantations. See HForest .