LAKE HURON, Ontario — Jenifer Brousseau often picks berries and traditional medicines in the bush around her community in northeastern Ontario. But in recent years, Brousseau and many others from Serpent River have been concerned about the forestry industry’s use of herbicides that contain the chemical glyphosate. …Environmental groups — including Friends of the Earth Canada, the David Suzuki Foundation, Safe Food Matters and Environmental Defence Canada — have launched a court challenge of Health Canada’s conclusions on glyphosate. …Some small municipalities in northern Ontario have also started to petition the province in their effort to get the ban. …Fred Pinto, an adjunct professor of forestry at the University of Toronto said herbicides are just one tool used by forestry companies to manage vegetation. Pinto said herbicide spraying is often done using aircraft in areas that have little to no road access.