The biology and management of bark beetles in old growth pine forests of Itasca State Park

Matthew P. Ayres, María J. Lombardero, Bruce D. Ayres, and Alyson E. Santoro

GREAT LAKES INSTITUTE FOR PINE ECOSYSTEM RESEARCH, Box 520, Colfax, WI 54730. 1999. 128 pp.

Photographic images

Cover photo. Ips pini adults and larvae in red pine phloem

Fig. 2.4. Canopy photographs of old growth red pine forests

Fig. 5.1. Red pines infested by Ips bark beetles

 Fig. 5.3a. Decline of infested red pine #713 during one year

Fig. 5.3b. Decline of infested red pine #724 during one year

Fig. 6.4. The early formation of cat-faced scars on red pines

Fig. 6.5. Well developed cat-faced scars on red pines


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