Pine weevil

Definition

A common name applied to several large weevils (family Curculionidae) whose larvae or adults damage coniferous trees, especially in forestry and plantation settings. The term most often denotes Hylobius abietis (large pine weevil), a major European pest whose adults ring-bark the stems of young seedlings at the collar, typically killing them. Other species, such as Pissodes castaneus and P. nemorensis (eastern or northern pine weevil), are also called pine weevils in North America. The name reflects host association rather than a monophyletic group.

Etymology

From 'pine' (conifer host trees) + 'weevil' (recognizable snout beetle of family Curculionidae).

Example

Foresters in Scotland routinely apply physical barriers or insecticides to protect restocked sites because pine weevil adults migrate from stumps of felled trees to feed on the bark of newly planted Sitka spruce seedlings.

Related Terms

• Hylobius abietis
• Curculionidae
• ring-barking
• clear felling
• plantation pest
• Pissodes

Usage Notes

The common name is applied to multiple genera (Hylobius, Pissodes, others) and varies regionally; specialists usually prefer the scientific name to avoid ambiguity. In European forestry literature, 'pine weevil' without qualification almost always means H. abietis.