Methods used to control phragmites vary based on specific site characteristics. A combination of a non-chemical method (mowing or cutting) followed by a specific herbicide spray application applied by licensed applicators is one of the most effective ways to control phragmites. However, herbicide application may be prohibited in areas close to water and best management practice guidelines must be followed. Spot herbicide application over a 3-5 year period may be required to completely eliminate phragmites growth in targeted areas.
Control methods that don’t work
- Cutting without use of hebicides
- Cutting or treating only some of the phragrmites grouping
- Cutting the plants afer a sead head develops
- Using a lower concentration of herbicide, applying at the wrong time, or not under proper weather conditions
- Cutting before or too soon after treatments
Control methods that do work
Please visit the Government of Ontario website for additional information on best management practices for phragmites.