Pissodes strobi
Pest description and crop damage Adults are about 0.25 inch long and light to dark brown with a prominent curved back. They kill terminal shoots and deform the tree.
See "Pine" in:
Christmas Tree Plantation Pests
Management-cultural control
Remove and burn infested shoots.
Management-chemical control
See:
Chemical Control of Nursery Pests
Control requires thorough applications to the terminals to prevent new infestations by egg-laying female weevils.
For more information
Johnson, W.T. and H.H. Lyon (1991), Insects That Feed on Trees and Shrubs, 2nd ed., Cornell University Press (p. 54).
PNW Nursery IPM: White pine weevil (http://oregonstate.edu/dept/nurspest/white_pine_weevil.htm)