The Government of Alberta determines which weeds in the province present significant economic, social or ecological risks if not controlled. Weeds that require regulation to enforce their removal are classified as either noxious or prohibited noxious weeds.

Prohibited noxious weeds must be destroyed entirely, while noxious weeds must be managed to limit their spread. Prohibited weeds are not yet present, rare, or newly introduced species, whereas noxious weeds are already established throughout the province.

The following are noxious or prohibited noxious weeds commonly found in Strathcona County that are regulated in the Alberta Weed Control Act. Click on the weed name to see an informational PDF from the Alberta Invasive Species Council.

The weed sheets include information to help you:

• Identify each weed

• Understand where they are most commonly found

• Effectively control weed infestations

If you are still unsure about the identification of the plants, please submit a County Connect request to arrange for a weed inspector to help with identification.

Further information: