U.S. Forest Service Research Note

U.S. Forest Service Research Note

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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
Publisher: - 1976


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