RDOS launches pilot project to remove invasive tree species

News Article

Published: December 8, 2023

The Regional District of Okanagan-Similkameen (RDOS) is taking steps to remove invasive tree species from several locations in Greater West Bench (Electoral Area “F”) as part of a new pilot project. With input and collaboration from several partners, including OASISS (Okanagan and Similkameen Invasive Species Society), and Ministry of Transportation and Infrastructure (MoTI), RDOS staff are addressing long-standing issues related to invasive plants and trees.

The program is targeting the removal and treatment of three species of invasive trees that are proliferating in the Okanagan Valley, choking out natural vegetation and ecosystems.

Siberian Elm (Ulmus pumila)

These fast growing trees quickly overtake native vegetation, especially shade-intolerant species, reducing forage for livestock and wildlife.

Russian Olive (Elaeagnus angustifolia)

A major problem in the Pacific Northwest, invading riparian woodlands and threatening large, hardy native trees such as cottonwoods. It can form dense stands that alter vegetation structure.hydrology of a system.

Tree of Heaven (Ailanthus altissima)

Competes with native vegetation and reportedly produces toxins that prevent the establishment of other species. The root system is aggressive enough to cause damage to sewers and foundations.

Residents in the Greater West Bench area may see crews and equipment working in RDOS properties and along roadways. “This collaborative project provides several benefits, including regrowth of natural vegetation, clearing sight lines at intersections, and reducing conflict from overhead utilities,” said Riley Gettens, Electoral Area “F” Director.

The invasive species pilot project will be reviewed and RDOS staff will explore opportunities to expand the program in future years.

Program objectives