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FPL 73 - Lodgepole Terminal Weevil

The information accessed from this screen is based on the publication: Duncan, R. W. 1986. Terminal and Root-Collar Weevils of Lodgepole Pine in British Columbia. Forestry Canada, Forest Insect and Disease Survey, Forest Pest Leaflet No. 73 6p.

Introduction

Lodgepole pine has become increasingly important as a source of timber and pulpwood in British Columbia. More intensive management of lodgepole pine stands will necessitate careful monitoring of pests that might otherwise reduce the quality or quantity of timber or fibre produced.

The lodgepole terminal weevil, Pissodes terminalis Hopping, feeds in the current year's terminal growth causing dieback, height growth loss and consequent deformity in the main stem. In the Cariboo forest region up to 40% of the trees in some stands have been attacked.

Warren's root-collar weevil, Hylobius warreni (Wood), feeds in the cambium of the root-collar area on young to mature pine and spruce, causing growth reduction or mortality. Numerous plantations throughout the central interior have experienced mortality levels in excess of 10%.

For more information, see the Lodgepole Terminal Weevil Forest Pest Leaflet in the Canadian Forest Service bookstore.