Pissodes strobi
Pest description and crop damage A small brown weevil, roughly 0.25 inch in lengthy, with the snout typical of other weevils. Wing covers have irregular patches of brown and white scales. An important pest of spruce and pine, occasionally a pest of Douglas-fir.
Management-chemical control
Apply to the tops to control egg-laying weevils as temperatures warm in spring. Several applications 3 to 4 weeks apart may be necessary.
- bifenthrin (OnyxPro, Sniper and others) (Group 3A)-Restricted use pesticide. Some products are not registered for use in Washington.
- phosmet (Imidan 70W) (Group 1B)
Spruce