Japanese knotweed is a highly invasive species seen in many areas of Prince Rupert. The city has already started spraying herbicides to stem the problem.

Japanese knotweed is a highly invasive species seen in many areas of Prince Rupert. The city has already started spraying herbicides to stem the problem.

City declares war on Japanese knotweed

Prince Rupert began spraying herbicides in an effort to eradicate the highly-invasive Japanese knotweed that has sprung up in the city.

The City of Prince Rupert has started tackling the growth of Japanese knotweed, as more and more of the highly-invasive plant is sprouting up within the community.

Japanese knotweed is considered to be one of the world’s most invasive plant species, having a deep, strong-rooted system that can cause significant damage to concrete foundations, buildings, retaining walls, roads, as well as water and sewer lines.

To address the issue, the city has hired the Spectrum Resource Group to treat city-owned properties where knotweed is growing.

“The city has already completed a round of treatment … Knotweed generally takes more than one round of treatment to be successful,” said Veronika Stewart, communication manager of the city.

“Thankfully, it is relatively inexpensive, and we have been able to identify a professional that will treat in our area through coordination with the Northwest Invasive Plant Council.”

The city will continue paying for herbicides to be sprayed on public lands, however Prince Rupert residents and business owners are responsible for treating knotweed on their properties.

The plant is characterized by its triangular-shaped leaves and long stems, which resemble bamboo or rhubarb because of its round-hollow stalks.

RELATED: KNOTWEED INVADING CITY AND RESIDENTIAL LAND

Knotweed can quickly grow several metres, easily spreading over property lines. The city recommends private land owners hire professionals to treat knotweed growth, as it’s resilient and will re-sprout vigorously if chopped down.

The most effective method of controlling growth is to apply the herbicides glyphosate (known as “Roudup”), imazapyr, or a combination of both, with a number of applications being required to fully eradicate the plant. It usually takes two to five years to accomplish the complete annihilation of knotweed.

To combat Japanese knotweed plants, residents are encouraged to contact Spectrum Resource Group Inc. at (250) 596-8783. The cost of treatment may vary, with an average sized area costing about $50 to treat.

Furthermore, the city is asking residents to report any knotweed growth for its knotweed community inventory. Individuals can report the growth of plants on the City of Prince Rupert website at http://www.princerupert.ca/community/online-forms/knotweed

Just Posted

Visitors to a pop-up temporary aquarium in Prince Rupert will have the chance to see marine ecology from July 21 to Aug. 15, like this viewer watching sea anemones at the Ripley’s Aquarium in Toronto. (Photo: K-J Millar/The Northern View)
Prince Rupert pop-up aquarium will bring sea level to eye level in July

A permanent peak to reef ecology centre is in the planning stages by North Coast Ecology Society

Prince Rupert’s Ellen Wright and Graeme Dickens jam out during filming the two Ring System Studio concerts to be broadcast on television during June. (Photo: supplied, H. Cox)
Ring System Studio sounds on television

Two concerts by the Prince Rupert music school will be broadcast in June

Commerical marijuana grow ops that are budding up in Prince Rupert’s downtown core are legal and out of the city’s jurisdiction, Mayor Lee Brain said, on June 14. (Photo:supplied/K-J Millar)
Prince Rupert downtown’s pretty dope

Marijuana operations grow in the Prince Rupert city core

Unionized longshore and port workers gather along Highway 16 on June 15 not crossing the picket line where Prince Rupert Solidarity Movement group protests the docking and unloading of the JPO Volans, a ship with Israeli designed technology and equipment. (Photo: K-J Millar/the Northern View)
Prince Rupert Solidarity Group pickets at port in protest

Demonstrations against the container ship JPO Volans lead into the second day to dissuade docking

BC Ferries has announced the welcoming back onboard of recreational travellers on June 15 after the provincial travel restrictions were lifted. (Courtesy of BC Ferries)
BC Ferries welcomes back recreational passengers

The ferries corp will relax mask-wearing in outdoor spaces

People line up to get their COVID-19 vaccine at a vaccination centre, Thursday, June 10, 2021 in Montreal. THE CANADIAN PRESS/Ryan Remiorz
Vaccines, low COVID case counts increase Father’s Day hope, but risk is still there

Expert says people will have to do their own risk calculus before popping in on Papa

FILE – A science class at L.A. Matheson Secondary in Surrey, B.C. on March 12, 2021. (Lauren Collins/Surrey Now Leader)
Teachers’ union wants more COVID transmission data as B.C. prepares for back-to-school

BCTF says that details will be important as province works on plan for September

Provincial health officer Dr. Bonnie Henry outlines B.C.’s COVID-19 restart plan, May 25, 2021, including larger gatherings and a possible easing of mandatory masks on July 1. (B.C. government photo)
B.C. records 120 new COVID-19 cases, second vaccines accelerating

Lower Pfizer deliveries for early July, Moderna shipments up

A Heffley Creek peacock caught not one - but two - lifts on a logging truck this month. (Photo submitted)
Heffley Creek-area peacock hops logging trucks in search of love

Peacock hitched two lifts in the past month

The Calgary skyline is seen on Friday, Sept. 15, 2017. THE CANADIAN PRESS/Jeff McIntosh
2 deaths from COVID-19 Delta variant in Alberta, 1 patient was fully immunized

Kerry Williamson with Alberta Health Services says the patients likely acquired the virus in the hospital

The first suspension bridge is the tallest in Canada, with a second suspension bridge just below it. The two are connected by a trail that’s just over 1 km. (Claire Palmer photo)
PHOTOS: The highest suspension bridges in Canada just opened in B.C.

The Skybridge in Golden allows visitors to take in views standing at 130 and 80 metres

BC Green Party leader and Cowichan Valley MLA Sonia Furstenau introduced a petition to the provincial legislature on Thursday calling for the end of old-growth logging in the province. (File photo)
BC Green leader Furstenau introduces old-growth logging petition

Party calls for the end of old-growth logging as protests in Fairy Creek continue

B.C. Premier John Horgan leaves his office for a news conference in the legislature rose garden, June 3, 2020. (B.C. government photo)
B.C. premier roasted for office budget, taxing COVID-19 benefits

Youth addiction law that triggered election hasn’t appeared

A vial containing the Moderna COVID-19 vaccine is shown at a vaccination site in Marcq en Baroeul, outside Lille, northern France, Saturday, March 20, 2021. THE CANADIAN PRESS/AP/Michel Spingler
mRNA vaccines ‘preferred’ for all Canadians, including as 2nd dose after AstraZeneca: NACI

New recommendations prioritizes Pfizer, Moderna in almost all cases

Most Read