The Okanagan-Kootenay Sterile Insect Release Program (OK SIR) is a highly successful area-wide community initiative that applies nature-friendly technology to the control of codling moth, the BC tree fruit industry's most damaging and costly pest.

The goal of the OK SIR is to control codling moth to the point where no control interventions are required in commercial orchards and their surrounding areas in the participating fruit growing regions of the Okanagan, Similkameen, and Shuswap Valleys.

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