Pathogenicity Of The Bioherbicide Fungus Chondrostereum Purpureum To Some Trees And Shrubs Of Southern Vancouver Island

Chondrostereum purpureum is a common stem-invading fungus of trees and shrubs. The fungus has attracted interest as a bioherbicide, but a better understanding of its biology is required. This study was undertaken to determine the range of virulence of isolates of C. purpureum from a given region on major hardwood species in British Columbia. The investigators inoculated wounds of stems of standing red alder (Alnus rubra) and bigleaf maple (Acer macrophyllum) saplings with 11 isolates of the fungus and measured the resulting stem cankers as an index of virulence. They also inoculated eight hardwood and shrub species with two isolates to demonstrate the range of susceptibility of species to the fungus, as well as the intraspecific variation.

The management of rights-of-way by electric and telephone utilities, highway departments, gas pipeline companies, and railroads around the world is guided and constrained by policies and regulations to protect the environment. Companies that manage rights-of-way are required to comply with these regulations, and are seeking the most cost-effective management practices that, at the same time, demonstrate stewardship of the environment. Protection of biodiversity and sustainable development are especially important as national goals in many countries, and rights-of-way managers are seeking practical ways to include public participation in their operations. * Addresses environmental issues in rights-of-way planning and management * Provides a forum for information exchange among various agencies, industries, environmental consultants, and academic organizations * Presents peer-reviewed papers to help achieve a better understanding of current environmental issues involved in rights-of-way management

Information on black cottonwood and balsam poplar, useful to foresters and woodland managers. Other broadleaf species, such as aspen, red alder or paper birch, are referred to where there are implications for management of cottonwood and poplar. Ecological values are also discussed.