

Invasive Species Awareness Week Day 5: Invasive Trees and Tree of Heaven
We have a couple of invasive tree species here in the Okanagan and Similkameen and one is the frustrating Tree of Heaven. Tree of Heaven is believed to be the fastest growing tree in North America, making it outcompete many of our native species. It is also allelopathic, meaning that it can make the soil around itself toxic to other plants. This tree can easily establish itself into disturbed areas and is quite tricky to get rid of. Cutting the tree can just trigger the plant


Invasive Species Awareness Week Day 4: Mechanical Control and Cheatgrass
When trying to manage invasive plants mechanically, a popular strategy is to try to cut down or mow the plant before it goes to seed. However, this can be hard for plants that go to seed early in the year. Cheat grass is one such plant. This grass will continue to grow throughout the winter so when the spring rains end, cheat grass has already gone to seed. This means you have to cut this grass super early in the year. Because cheat grass goes to seed so early, it dies early


Invasive Species Awareness Week Day 3: Mussels
We can't go through Invasive Species week without talking about one of the biggest threats in terms of invasives, Zebra, Quagga and other invasive mussels. These mussels are know for attaching themselves to every hard surface they can. Because of this they can damage infrastructure like irrigation pipes and municipal water systems which could cost millions to fix. These mussels also alter the food web, by outcompeting native species like salmon and Rocky Mountain Ridged musse


Invasive Species Awareness Week Day 2: Bio-control and Purple Loosestrife
Not all invasives can be dealt with in the same way, it is really dependent on the species and how it grows. The most common ways to control invasives are mechanically, chemically, or through bio-controls. Mechanical is through brute force, usually by digging or pulling, and chemically is through the use of pesticides and herbicides. Bio-control are when you introduce a species, usually an insect, that would naturally predate on this plant where it originated from. This requi


Invasive Species Awareness Week Day 1: Prioritization and Rush Skeletonweed
This week is about recognizing the different invasives that are found in the Okanagan and Similkameen valleys and how they can be managed. Firstly, not all introduced plants are considered invasive, they only claim that invasive status when they start taking over and disturbing the biodiversity in the area. And like most things, there is a spectrum of how bad they are and their priority level. Some are prioritized if they are not yet prolific in an area. So if they start sho


