Invasive and Noxious Plant Control
Invasive and Noxious Plants
An invasive species is any plant or animal species that is introduced into an environment where the species is not native. There are numerous examples of plants, insects, birds, and animals that have been transplanted from their natural environments, either by accident or intentionally, into areas where they end up having a serious impact on the natural ecosystem.
In addition to the natural environmental impacts, some invasive plants can speed up the deterioration of public and private infrastructure. Just as the tree that you planted 20 years ago in the back yard has now grown to the point that the root system is pushing up your driveway, or the ivy you planted has completely grown over your retaining wall and rooted into the cracks in the concrete or wood ties, invasive plants can accelerate the destruction of man-made materials.
The Province of British Columbia has developed their own “Pest Management Plan” (PMP). Pitt Meadows does not require a pest management plan if Licensed contractors are used, as the applications will be recorded on the “Pesticide User License” (PUL) of the contractor.
During the invasive plant’s growing season, the City of Pitt Meadows leverages pesticide applicator contractors and crew members to address noxious weed infestations on City owned lands and road Rights of Way. We continue to work with the Metro Vancouver Invasive Plant Council and neighboring municipalities towards the implementation of a long term regional plan. It is estimated that any areas that are identified as “control areas”, may take up to 4 years to eradicate and requires consistent monitoring by City crew.
The Metro Vancouver Invasive Plant Council reported very high efficacy rates (plant kill) with foliar applications, which is not typical. They have also been applying pesticides via injection, which uses up to 80 percent more chemical than foliar applications. Glyphosate is considered to be effective in the control of Japanese Knotweed and is readily available to both residents and contractors. The Metro Vancouver Invasive Plant Council have also been using other chemical products, however staff do not support their use at this time, due to the reported residual effect on the soil.
Glyphosate is a non selective systemic herbicide, therefore, care must be taken not to kill or damage non target species when foliar spraying. Any chemical application should be carried out by certified professionals.
What do I do if I find invasive plants on my private property?
The B.C. Weed Control Act imposes a duty on all land occupiers to control designated noxious plants. The purpose for the Act is to protect our natural resources and industry from the negative impacts of foreign weeds.
We recommend that citizens contact a qualified business whose applicators have the ‘Pesticide User License' certification. While we know that some may be tempted to take the ‘DIY' approach, the concern is that the foliar spraying of invasive plants in the wrong concentrations or under the wrong conditions may end up doing collateral damage to other plants in your garden, or your neighbour's garden.
What should I do if I see an invasive plant on public property?
If you spot an invasive plant, please call our Public Works department at 604.465.2434, or email firstname.lastname@example.org and your concerns will be noted and responded to in the appropriate manner. All information is compiled and prepared for the coordinated control program.
To identify which type of invasive plant species you’ve encountered, please visit the ISC Website.
We continue to work with other levels of government and local environmental groups to ensure that we develop a detailed inventory of invasive plants found in our parks, water courses and protected lands.
More information on these and other invasive species can be found on these websites:
- Government of BC - Forests, Lands & Natural Resource Operations
- Invasive Species Council of BC
- Fraser Valley Invasive Plant Council