Developed by the Invasive Species Centre, Forest Invasives Canada provides information and news on invasive insects, pathogens, and plants in Canada’s forests. This program examines the science behind invasive species in Canada, connects visitors to the most recent management information, and addresses the overall threat of invasive species in our forests.
Invasive forest insects are a problem for all types of forest: urban, commercial, and natural. Invasive insects can be spread far and wide by humans, making urban centres prime locations for an invasion to start. The urban trees increase property values, reduce energy costs for homes, improve air and water quality, and provide aesthetic value.
Once an invasion takes hold it can easily spread out into natural and commercial forests. The natural forest provides a vast quantity of environmental services and holds intrinsic value for Canadians. The commercial forest is a pivotal economic need for Canada. It provides a significant portion of our gross domestic product and a large number of jobs.
Invasive species are a large financial cost to the forest industry. Canada’s annual timber losses due to invasive species are estimated at 61 million cubic metres, equivalent to $720 million in losses (Canadian Action Plan for Invasive Alien Terrestrial Plant and Plant Pests; CFIA, September, 2004). Furthermore, the impacts on trees by invading insects affect every aspect of the ecosystem and cause cascading negative effects to native vegetation and wildlife.