Image Number: 4178048 black turpentine beetle Dendroctonus terebrans (Olivier) Photographer: USDA Forest Service Archive, USDA Forest Service Contact: Erich G. Vallery, USDA Forest Service - SRS-4552 Descriptor: Damage Description: pitch tube Image Citation: USDA Forest Service Archive, USDA Forest Service, forestryimages.org Image Use: This image may be copied and used, in whole or in part, for any non-profit, educational purpose provided that all reproductions bear an appropriate credit. Any commercial or other use of the image requires the written permission of the photographer or contact organization, and Forestry Images.