I am writing about the proliferation of the noxious weed Wild Parsnip in Whitewater Region. This invasive species has taken over many of the ditches and road allowances and, left unchecked, is spreading even farther afield.
In the photos attached you will see it is to the point that it is difficult to avoid coming into contact at gates, it has moved into hayfields and pastures where cattle graze, and is growing next to lawns where children play and could come into contact.
The Invasive Species Centre website states that this weed has impacts on:
Biodiversity – outcompetes native vegetation, particularly crowding out lower-growing plants. It can also have an impact on pollinators, as honeybees do not visit the plant and it may displace other, more pollinator-friendly plants such as goldenrod.
Agriculture – reduces the quality of some agricultural forage crops. In agricultural operations using a no-till or reduced tillage system, it is a concern, as perennial weeds such as wild parsnip are able to take over. Wild parsnip is not valuable as a forage plant; the chemical compounds in wild parsnip inhibit weight gain and fertility in livestock that feed on it.
Human health – contains toxic compounds, called furanocoumarins. These compounds can cause serious rashes, burns, or blisters to skin exposed to the sap and then sunlight. The plant poses a risk to agricultural workers, those involved with vegetation control, and to people unknowingly exposed to the plant in the wild.
These are grave concerns. It would be reassuring to know that Whitewater Region has a plan to do something about it, ideally before they seed themselves down again this season and continue to multiply.
While some people may be opposed to the use of chemcial herbicides, it seems to be the most effective method and there comes a time when the benefits outweigh the risks (much like the COVID-19 vaccine). It is noteworthy that there are selective herbicides that control wild parsnip but leave desirable vegetation (grasses, etc.).
I hope Whitewater Region has a plan to prevent further spread of this harmful plant.
Brian Coughlin
Cobden
