A Test with Large Scale Aerial Photographs to Sample Balsam Woolly Aphid Damage in the Northeast

Author： Heller R. C.   Lowe J. H.   Aldrich R. C.   Weber F. P.  

Publisher： Society of American Foresters

ISSN： 0022-1201

Source： Journal of Forestry, Vol.65, Iss.1, 1967-01, pp. : 10-18

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