General Technical Report RM.

General Technical Report RM.

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Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station. 3 p. ... No trees fell within the 2 years following infestation. ... Cydia youngana (Kearf ott) (Lepidoptera: Tortricidae) and associates in Engelmann spruce cones, Fraser Experimental Forest Colorado, 1974-anbsp;...

Title:General Technical Report RM.
Publisher: - 1991


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