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ISCMV Treatment Sites

The ISCMV uses an integrated vegetation management approach with the goal of reducing the cumulative impacts caused by invasive species. This is best achieved with a combination of prevention strategies and treatment methods. Appropriate control methods for each site are selected based on the latest scientific research and best management practices. Herbicide used as a last option in specific instances when a plant species cannot successfully be treated any other way or when a plant species poses a risk to our crew during treatment. It is used judiciously and selectively applied.

In accordance with provincial law, a sign is installed at each site where herbicide is applied and left for two weeks.

What Species Are Being Treated And Why?

Knotweed Treatment

Due to knotweed’s extensive root system and ability to regrow from as little as 0.2 grams of root or stem fragment, the most effective way to treat knotweed is with herbicide.  Knotweed is a serious problem in the Metro Vancouver region.  Not only is it an extreme threat to natural habitats, it poses considerable risk to private land owners as it can grow through the foundation of homes and increase the risk of erosion on slopes. In the UK, some homeowners cannot obtain house insurance or even mortgages on properties with knotweed on them. Learn more about Knotweed here.

Giant Hogweed Treatment

If the sign indicates that the site has been treated for giant hogweed, please stay back! Giant hogweed contains a toxic sap that can cause serious, recurring burns that last over a decade. Sap can also cause blindness if it gets into your eyes and even irritate your respiratory system. This highly dangerous plant often requires chemical treatment as the risk to our crew is too high to remove it by hand. Learn more about Giant Hogweed here.