The Alberta Weed Control Act
The Weed Control Act is legislation in Alberta that directs all landowners to prevent the growth, propagation and spread of regulated weed species. The Weed Control Act lists specific weed species as either Noxious or Prohibited Noxious.
Weed Control Regulation
The Weed Control Regulation provides the list of prohibited noxious weeds and noxious weeds. It describes seed cleaning facility licensing procedures as well as the requirements of the appeal process for inspector’s notices, local authority’s notices, and debt recovery notices.
Noxious weeds means a plant designated in accordance with the regulations as a noxious weed and includes the plant’s seeds. Examples of noxious weeds include; Common baby's breath (Gypsophila paniculata), Field bindweed (Convolvulus arvensis), Downy brome (Bromus tectorum), Scentless chamomile (Tripleurospermum inodorum), and many more species.
Prohibited Noxious Weeds
Prohibited Noxious weeds means a plant designated in accordance with the regulations as a prohibited noxious weed and includes the plant’s seeds. Examples of prohibited noxious weeds include; Russian knapweed (Rhaponticum repens), Purple loosestrife (Lythrum salicaria), Rush skeletonweed (Chondrilla juncea), and many more species.
These species are not native to Alberta, they have been introduced to the area either intentionally or accidentally. They displace native vegetation species and are not regulated under the Weed Control Act.
Milk River Invasive Weed Infestations
The County of Warner Ag Service Board has conducted extensive work preventing and removing invasive weed infestations along the Milk River. More information on the work can be found here.
The following resources can be used for the identification of invasive weed species and management of infestations:
The Alberta Invasive Species Council has many resources and factsheets to assist you in the identification of weed species.
The following resources can be used for the identification of native plant species: