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Efforts continuing to control invasive species in South Okanagan

Puncturevine and invasive mussels have been identified as concerns in region
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Puncturevine flower and seedpod is an invasive plant which has been seen in the South Okanagan and Similkameen. In 2023, efforts were made to address the problems with this plant in Summerland. (OASISS/file)

The Okanagan and Similkameen Invasive Species Society is continuing to work on controlling invasive species in the region.

Lisa Scott, executive director of the society, said the society worked to control 28 invasive species in 2023. Efforts to control those species included 221 chemical treatments on 9.1 hectares and 60 mechanical treatments on 1.26 hectares.

In addition, the society observed 56 sites with no invasive plants on them.

The Regional District of Okanagan-Similkameen has provided financial support to the society.

The society takes care of invasive plant treatments and also has an education component.

At present, there are some high-priority areas within the regional district.

In 2023, the society focused on outbreaks of hoary alyssum and puncturevine, both in Summerland.

Hoary alyssum is toxic to livestock, while puncturevine, also a toxic plant, has sharp spines and can cause damage to animals and people.

Invasive aquatic plants and invasive mussels have also been a concern for the society.

The Similkameen River, Otter Lake and Allison Lake have been identified as priority areas for monitoring for invasive mussels.

In addition, the regional district has launched a pilot program to target invasive plants in the West Bench area near Penticton. These plants include Siberian elm, Russian olive and tree of Heaven, which all compete with native vegetation in the area.

The education and outreach component includes training, presentations and participation at Earth Day events in West Bench and Summerland.



John Arendt

About the Author: John Arendt

I have worked as a newspaper journalist since 1989 and have been at the Summerland Review since 1994.
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