Relative Effect of Seed and Cone Insects on Ponderosa Pine in Northern Arizona

Author: BLAKE ELIZABETH A.   WAGNER MICHAEL R.   KOERBER THOMAS W.  

Publisher: Entomological Society of America

ISSN: 1938-291X

Source: Journal of Economic Entomology, Vol.82, Iss.6, 1989-12, pp. : 1691-1694

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