Japanese Knotweed Sign Up

The Invasive Species

As one of Canada’s most invasive plants, Japanese knotweed has the ability to outcompete native species. Its roots can grow through concrete and building foundations, reaching up to 10 feet deep and spreading 65 feet wide. Removal by excavation or cutting back is almost impossible, as virtually all damage to this plant stimulates vigorous regrowth.

Our effective treatment

Our targeted herbicide application techniques, which have demonstrated up to 94% effectiveness in controlling Japanese knotweed, are the most effective treatment due to the plant’s nature and resilient root system. This approach is supported by the Invasive Species Council of BC (ISCBC). Para Space uses glyphosate, a PMRA-approved pesticide that Health Canada does not classify as a carcinogenic risk to humans. Our certified Plant Health Care technicians apply glyphosate through direct stem injection or, in some cases, regulated spraying, all in accordance with government guidelines.

Our treatment is effective and tailored to the specific needs of each property. Book your free assessment below!

Japanese Knotweed Sign Up

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