Signage is posted in areas that have been targetted.
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Japanese Knotweed
Japanese Knotweed
The Sea to Sky Invasive Species Council (SSISC) undertakes a control program for Japanese Knotweed (Fallopia japonica), in partnership with various landowners including the District of Squamish. The control program is applied at sites throughout the Sea to Sky Corridor.
Japanese Knotweed is an invasive species that can produce a new plant in as little as six days and can reproduce from as little as 1 gram (approximately 1 x 1 cm) of plant or rhizome material. It is very difficult to manually control the spread of this species, and can have potentially devastating impacts on riparian areas or infrastructure. Digging and cutting this plant is ineffective and can aid in the spread. In strategic locations where Japanese Knotweed is threatening sensitive habitat or infrastructure, plants are treated with herbicides, including glyphosphate formulations.
Himalayan blackberry is addressed by manual removal methods at selected sites, and is not treated with herbicide control.
Signage is posted at all herbicide treatment sites for two weeks after plants have been treated. It is recommended that people and animals stay out of the treated area for 12 hours.
Health Canada regulates pesticides to protect Canadian's health and the environment, and regularly reviews all pesticides to make sure that they continue to meed modern health and safety standards. View a January 2019 statement from Health Canada on Glyphosate.
A knotweed fact sheet has been prepared by the BC Invasive Species Council which outlines the extensive impact that knotweeds can have on a community, and the methods used to control them.
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