Roadside Pesticide Use in 2026

Each spring, Bruce County undertakes roadside vegetation management to help keep County roads safe while controlling noxious and invasive weeds along roadsides.  

Noxious weeds are a risk to livestock, agricultural land and people.  

Our contractor, Greenstream, will apply herbicides to control noxious weeds along Bruce County rural roadsides. This work falls under the Public Works Exception of the Cosmetics Pesticides Ban for the promotion of public health or safety.  

Spraying will occur on the following Bruce County Roads: Bruce Road 1, 2, 3, 4, 6, 7, 12, 15, 19, 20, 22, 23, 28, 86 and 6E. 

Spraying will start on May 11, 2026, weather permitting, and conclude June 30, 2026. 

Roadside mowing and weed spraying along Bruce County roadsides play an important role in road maintenance, improving sightlines, sign visibility and road drainage. 

Spraying is only on unmaintained ditches, not on yards or ditches which property owners are maintaining. If you are a property landowner who does not want their unmaintained ditch sprayed, contact our Transportation and Environmental Services team for more information.  

Local municipalities and the province may also be spraying weeds on roads which they maintain. Please check with them for information about their weed control practices. 

More Information 

• Discover more about vegetation management in Bruce County. 
• Read Ontario’s complete Weed Control Act. 
• Learn more about Ontario’s Pesticides Act and Ontario Regulation 63/09  the province’s framework to regulate pesticides to protect human health and the natural environment.   

Read Bruce County’s official public notice related to roadside weed spraying for the 2026 season.