TY - JOUR AU - Lang, Jordan AU - Heald, Robert AU - Stone, Edward AU - Dahlsten, Donald L. AU - Akers, Robin TI - Silvicultural treatments to reduce losses to bark beetle JF - California Agriculture JO - Calif Agr Y1 - 1978/07/01 VL - 32 IS - 7 SP - 12 EP - 13 PB - University of California Agriculture and Nature Resources SN - 0008-0845 UR - http://www.ucanr.edu/sites/calagjournal/archive/?article=ca.v032n07p12 AB - Using the “aggregation” approach to characterize groups of Ponderosa pines, researchers at the Blodgett Forest Research Station are studying the effects of thinning on beetle-caused mortality.