Control of exotic invasives species: Japanese knotweed and goutweed

Japanese knotweed: This bamboo-like species creates dense colonies that negatively impact Mount Royal’s plant diversity. Given its tendency to cause erosion and alter the chemical composition of soils. 

Goutweed: This plant poses a significant threat on the mountain, rapidly spreading and outcompeting native plants. Once established, its rhizomes form an extensive network, choking out other species. Even a small piece of rhizome can regenerate into a new plant. To address this issue, Les Amis de la montagne aims to control goutweed and conduct experimental monitoring with the help of volunteers.

Les Amis de la montagne are taking action to control the populations present in the mountain woodlands. As a volunteer, you will receive a brief training session to learn more about its impacts and how to identify it. You will also help control the colonies of this species using a manual cutting technique that requires the use of pruning shears (depending on the species to be controlled).

Date of the activity:

• Saturday July 22, 4 p.m. to 6 p.m.

Required materials:

• Knee pads and gloves will be provided on site.

• Long pants and closed-toe shoes must be worn.

Weather:

To ensure everyone's safety, we monitor the weather in the days leading up to the activity. Should adverse weather conditions be forecast 24 hours before the activity, it will be cancelled. An email will be sent to inform you.

Cancellation:

• High probability of thunderstorms
• Winds and/or gusts over 60 km/h
• Temperature above 38°C
• Air quality index over 100
   

Register here!