Phytophthora root disease of alder is caused by a new species of fungus or a hybrid of two or more existing species of fungus that poses a serious threat to common alders causing abnormally small and discoloured leaves, dead roots, collar knot, other symptoms and plant death. This fungus is soil-borne and may be spread by water and soil as well as by movement of infected material by humans. Phytophthora species do not occur on alders in North America. Red alder wood is used in a specialty industry in the manufacture of fine furniture, specialized veneers, plywood, pallets and paper. It is the third most important hardwood export in the U.S. after red and white oak, and in B.C. the production of a high quality red alder log is approximately equal in value to that of a douglas fir log.
Alders contribute to soil quality and erosion control and provide wildlife food and habitat.
This directive is for the use of wood importers, nursery growers and other importers of plant material and for CFIA inspectors. This is to outline the prohibition of Alnus material from infested countries and to provide staff with direction on inspection procedures. A Guide to Writing and Editing . The Plant Protection Act, s.c. The CFIA is charging fees in accordance with the Canadian Food Inspection Agency Fees Notice .