Canada Thistle is a highly invasive, noxious weed under the Alberta Weed Control Act. Known for its aggressive spread via seeds and lateral roots, it poses a long-standing challenge for farmers and ranchers across the province. Traditional control methods like spraying, mowing, grazing, and burning are often ineffective or impractical—especially in hard-to-reach areas such as riparian zones, fence lines, and waste areas.

Read the full report here:  CANADA THISTLE STEM MINING WEEVILS Report Final