About 24% of the white and Lutz spruce trees still alive in 1998 were under attack by bark beetles. 3. ... PDF file, 1 p. BERG, E. 2002. Blown down trees reveal secrets of the forest-past and future. In: Peninsula Clarion, August 30, 2002, pp C-l and C-2 ... Forest health monitoring field methods guide (West Coast 1996).
|Title||:||Proceedings of the ... Society of American Foresters National Convention|
|Author||:||Society of American Foresters. Convention|