Christmas tree pests and weeds Douglas fir, grand fir, white fir and California red fir on Christmas trees in Santa Clara County. Camellias imported from California to British Columbia in 2003 and early 2004 caused a significant SOD scare in the horticultural and Christmas tree industries. The detection of "P. ramorum" led to plant recalls in Canada, and a series of steps meant to quarantine the disease before it spread. The 2003–2004 SOD scare extended to Washington and Oregon nurseries and farms. Douglas-firs are vulnerable to the two plant pathogens that cause Rhabdocline needlecast, "Rhabdocline pseudotsugae", and "Rhabdocline weirii". "R. weirii" affects only Douglas-fir trees.
General Noble (tree) Sequoia ("Sequoiadendron giganteum"), the General Noble Tree was perhaps among the top 30 largest Giant Sequoias by volume before it was cut down. The remains of the General Noble Tree are known as the Chicago Stump, which can be seen in the Converse Basin Grove. General Noble (tree) The General Noble Tree was a Giant Sequoia tree formerly within the Converse Basin Grove, with its site located in Giant Sequoia National Monument of the Sierra Nevada, in Fresno County, California. The General Noble Tree was cut down in 1892 to create an exhibit for the 1893 World's Columbian Exposition held