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Determining the age of dwarfmistletoe infections on red firAuthor(s): Robert F. Scharpf; J.R. Parmeter
Source: Res. Note PSW-RN-105. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 6 p
Publication Series: Research Note (RN)
Station: Pacific Southwest Research Station
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DescriptionDwarfmistletoe on red fir in California can be aged rapidly and reliably by counting the number of annual rings showing swelling and then adding 1 year for the lag period between infection and swelling. Infections were correctly aged in 70 percent of the cases observed, and were aged to within 1 year in the other 30 percent.
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CitationScharpf, Robert F.; Parmeter, J.R., Jr. 1966. Determining the age of dwarfmistletoe infections on red fir. Res. Note PSW-RN-105. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 6 p
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