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Attack pattern of mountain pine beetle in sugar pine standsAuthor(s): George R. Struble
Source: Res. Note PSW-RN-060. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 7 p
Publication Series: Research Note (RN)
Station: Pacific Southwest Research Station
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DescriptionData accumulated for more than 25 years from old-growth sugar pine stands in central California showed that the mountain pine beetle preferred to attack mature and overmature trees with the most decadent crowns. Analyses included four age groups and eight crown types. Beetle outbreaks in second-growth sugar pine were nondiscriminating between trees. These outbreaks developed during drought when heavy populations were reared in snow-breakage debris.
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CitationStruble, George R. 1965. Attack pattern of mountain pine beetle in sugar pine stands. Res. Note PSW-RN-060. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 7 p
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