The effects of sanitation-salvage cutting The effects of sanitation-salvage cutting on insect-caused mortality at Blacks Mountain Experimental Forest, 1938-1959 effectsofsanitat66wick Year: 1962 Figure h.—High-risk ponderosa pine, left, is susceptible to western pine beetle attack. Low-risk ponderosa pine is on the right. Figure 5-—White paint marked trees according to categories. One and two dots indicated low risk, three and four dots high risk. The latter types of trees were then removed by logging. -8-

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