Weed Control


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Did you know that Grande Cache is home to noxious weeds?
Plants are considered "noxious” when they spread uncontrolled, are difficult to manage, and are invasive in nature.

These plants:

  • Alter natural habitat;
  • Compete with our native plants;
  • Affect animal, insect, and bird species and
  • Are costly to control

Noxious weeds are to be controlled as required under the Alberta’s Weed Control Act.

Grande Cache believes that early detection and rapid response is the most effective method of managing invasive plants.

The employment of seasonal weed inspectors and the use of contracted vegetation spray management is our plan to maintain an effective, long term weed control program.  

Weed Spraying
The mild herbicide used by contractors to spray noxious weeds is Milestone by DOW AgroSciences.

Is Milestone safe?
Milestone is the most flexible and mild herbicide available. It does little-to-no damage to grasses, or other key members of the native plant community, allowing restoration of native habitats to their full potential. After application, the area sprayed is completely safe once the area has dried. Should you have any questions or concerns about this product, please see the MSDS sheet attached below or contact Public Works at 780.827.3611.

How will I know when they are spraying?

Before the program initiates, a Public Notice will be issued via Newspaper, social media and the website. Signs will be placed along the areas being sprayed. 

What if I have noxious weeds on my property?
All landowners have the responsibility to control prohibited noxious weeds on their land. Grande Cache is available to work with residents to prevent and resolve weed control issues. We can assist by identifying plant species and presenting solutions. 

If you identify noxious weeds on your property, you are encouraged to spray, pick, and bag the weeds.
After the weeds are bagged, you're welcome to contact Public Works to collect and dispose of the invasive plants safely.
For more information about prohibited and noxious weeds, please view the "Alberta Invasive Plant Identification Guide.”