Microctonus-pachylobii
Guides
Hylobius radicis
Pine Root Collar Weevil
Hylobius radicis is a pine weevil in the family Curculionidae, described by Buchanan in 1935. Adults serve as hosts for the endoparasitic wasp Microctonus pachylobii, with field studies documenting parasitism rates of 8.5%. Parasite loads show seasonal variation, with higher rates observed in April–June compared to August–September.