Western Spruce Budworms
The western spruce budworm is the most widely distributed and destructive forest defoliator in western North America. The most commonly infested hosts are...
Western Spruce Budworm - FIDL
Cover Photo The western spruce budworm, Choristoneura occidentalis Freeman,... No typical pattern or trend in western spruce budworm epidemics has been...
TreeHelp.com: Trees: Spruce Insects and Diseases: Western Spruce ...
The western spruce budworm, Choristoneura occidentalis Freeman, is the most widely distributed and destructive forest defoliator in western North America.
The spruce budworm: A century of expertise at the CFS
The spruce budworm: A century of expertise at the CFS.
spruce budworm - Answers.com
spruce budworm n. The highly destructive larva of a tortricid moth (Choristoneura fumiferana) of the northern United States and southern Canada that.
Forest Health - Western Spruce Budworm - WSU - NRS EXT
Impact: As western spruce budworm is a defoliating insect,... The USFS estimates that the western spruce budworm affected 234430 acres in Washington in...
