Mortality and Damage to Pacific Silver Fir by the Balsam Woolly Aphid in Southwestern Washington

Author: Johnson Norman E.   Mitchell Russell G.   Wright Kenneth H.  

Publisher: Society of American Foresters

ISSN: 0022-1201

Source: Journal of Forestry, Vol.61, Iss.11, 1963-11, pp. : 854-860

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Abstract