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Jayawickrama, KJS, Shaw DC, Ye TZ.  2012.  Genetic Selection in Coastal Douglas-fir for tolerance to Swiss Needle Cast Disease.. Proceedings of the fourth international workshop on the genetics of host-parasite interactions in forestry: Disease and insect resistance in forest trees. :372p. Download: PDF (1.41 MB)
Johnson, GR.  2002.  Genetic variation of Douglas-fir to Swiss needle cast as assessed by symptom expression.. Silvae Genetica. 51:80-86. Download: PDF (431.81 KB)
Johnson, GR, Grotta AT, Gartner BL, Downes G.  2005.  Impact of the foliar pathogen Swiss needle cast on wood quality of Douglas-fir. Canadian Journal of Forest Research. 35:331-339. Download: PDF (215.59 KB)