The primary seed-eating insects were a spruce seedworm, Cydia ( = Laspeyresia ) youngana (Kearfott), and an ... About 45% of each C. youngana generation adults did not emerge until at least the second year after completing theiranbsp;...
|Title||:||U.S. Forest Service Research Note|
|Author||:||United States. Rocky Mountain Forest and Range Experiment Stations, Fort Collins, Colo|