Weed By-Law and Invasive Plants

Invasive species and noxious weeds are present in Northumberland County.

Noxious weeds

Noxious weeds are harmful to agricultural and horticultural operations.

Northumberland County's Weed Inspector enforces The Ontario Weed Control Act to prevent and control the growth of noxious weeds in our community. Under the act (R.S.O. 1990, Chapter W.5), the County's Weed Inspector can order a landowner to destroy plants labelled as noxious weeds.

Review a list of Noxious Weeds in Ontario, or visit the Ontario Weeds Gallery for pictures of noxious plants.

Report noxious weeds

To report noxious weeds, call us at 905-372-3329 ext. 2303.

Invasive plants

The Ontario Invasive Species Act prevents and controls the spread of invasive species. The act outlines two classes of invasive species: prohibited and restricted.

Examples include:

There are many invasive species not listed in the act that can still out-compete native species and change the ecology of an area.