White pine weevil

The white pine weevil - Pissodes strobi (Peck) (Coleoptera: Curculionidae) - is a native insect attacking eastern white pine (Pinus strobus L.). The latest cytogenetic and breeding studies indicate that two other North American pine weevil species - the Sitka spruce weevil and the Engelmann spruce weevil-also should be classified as Pissodes strobi. The present distribution of P. strobi is thus transcontinental, coinciding with the natural distribution of eastern white pine, Sitka spruce, and Engelmann spruce. This leaflet discusses the biology, ecology, and management of P. strobi attacking eastern white pine only. However, some of the management issues also may address problems associated with attacks on other tree species.