Download (PDF 2.53 MB): https://research.fs.usda.gov/download/treesearch/54066.pdf
Abstract
A total of 33 host species commonly found in eastern (8) and western (25) Canadian landscapes and forest sites were selected for this study. Detached leaves/needles were inoculated with
Phytophthora ramorum EU2 lineage mycelia which was isolated from stream bait near an infected larch plantation in Scotland, UK. There was a large variation in susceptibility among hosts. Among the non-conifer hosts, Pacific dogwood, manzanita, camellia, rhododendron and salal in western Canada and sumac, yellow birch, wintergreen and white ash in eastern Canada were the most susceptible to
P. ramorum EU2 lineage. For conifer hosts, both balsam fir and white spruce in the eastern Canada and grand fir, sitka spruce, Douglas- fir and western larch in western Canada were the most affected following the inoculation.
Parent Publication
Citation
Shamoun, S.F.; Sumampong, G.; Rioux, D.; Schlenzig, A. 2017. Potential susceptibility of Canadian flora to EU2 lineage of
Phytophthora ramorum. In: Frankel, Susan J.; Harrell, Katharine M., tech. coords. Proceedings of the sudden oak death sixth science symposium. Gen. Tech. Rep. GTR-PSW-255. Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station: 91-98.
