Public Notice from the United Counties of Leeds and Grenville. 2026 Roadside Spraying - May & June 2026.
Vegetation control along the County roadsides is an important part of road maintenance. It ensures clear sight lines for signs, intersections and roadside wildlife, promotes drainage and drying and prevents the establishment of trees and brush in the right of way. Controlling noxious and invasive weeds is another objective of the County vegetation management program.
For roadside and guide rail weed control, the contractor will be using the following pesticide products registered under the Pest Control Products Act (Canada): ClearView Herbicide (Reg. #29752), containing the active ingredients Metsulfuron-methyl and Aminopyralid, present as potassium salt, Navius FLEX (Reg. #30922), containing the active ingredients Metsulfuron-methyl and Aminocyclopyrachlor and Gateway Adjuvant (Reg. #31470), containing the active ingredients Paraffinic oil and Alkoxylated alcohol non-ionic surfactants.
Roadside herbicide spraying will be completed in May and June along rural County Roads. See 2026 Spray Map.
Commencing: May 21, 2026 (weather permitting) to June 21, 2026. This pesticide use is in accordance with the public health and safety exception to the cosmetic pesticides ban in subsection 7.1 (2) of the Pesticides Act.
For further information contact:
Wagar & Corput Weed Control Inc. (613) 938-2117 (call collect)
United Counties of Leeds and Grenville (800) 770-2170 / (613) 342-3840 x 2425
The herbicide will selectively kill weeds but not the grasses and is approved for use on roadsides under the public works exemption of the cosmetic pesticide ban. Spraying of the herbicide will be completed by a qualified contractor licensed by the Ministry of the Environment and Climate Change under requirements of the Pesticides Act. Only unmaintained ditches will be sprayed with herbicide, maintained yards and ditches will not be sprayed.
Property owners who do not want the unmaintained ditch in front of their property sprayed can post “No Spray” signs at the start and finish of their property. These signs must be at least 30cm x 60cm (1 ft x 2 ft) and be easily read from the shoulder of the road. You can make your own sign or the Counties have a limited number of these signs available for pick up at the Counties office in Brockville. To obtain one of these signs or for more information please contact the Counties at (613) 342-3840 ext. 2413.
