"Herbicides in forestry kill broadleaf vegetation that compete with softwoods, which are more flammable" 

"Amid calls from some First Nations and municipalities in northeastern Ontario to stop glyphosate spraying on Crown land, environmental groups are raising concerns over the herbicide's effect on biodiversity.

Every summer, forestry companies spray thousands of hectares of Crown land with herbicides designed to kill broadleaf vegetation which competes with coniferous trees like spruce and pine that are harvested for their lumber. 

Chris Edge, a research scientist with the Canadian Forestry Service, said herbicide spraying typically happens a few years after an area is clear-cut."

Jonathan Migneault reports for CBC News September 8, 2025. [2]