Like many people from Serpent River First Nation, along the north shore of Lake Huron, 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.

"It's kind of scary because I don't know where I can gather anymore," she said.

"I have to be very mindful, of like, has there been forestry here? Are they gonna be spraying here? How close to here have they sprayed?"

Glyphosate is sold to forestry companies under the trade name Vision, but is most commonly known by the general public under Monsanto's trademark Roundup.

Glyphosate works by interfering with amin

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