The Program

Program Services

The Okanagan-Kootenay Sterile Insect Release Program (SIR) is an environmentally responsible, area-wide approach.

Program Benefits

Since the SIR Program began in 1991, there has been a significant reduction in the number of codling moths.

Program Results

Since the beginning of the SIR Program, wild codling moth populations have been reduced by 94%.

Insect Release Process

Our Program uses Sterile Insect Technique (SIT), producing sterile codling moths and releasing them at regular intervals.

Service Area

Today the Program’s success is achieved with the participation of four regional district governments.

Mission & Vision

The mission of the Okanagan-Kootenay Sterile Insect Release Program (SIR) is to reduce the use of pesticides.


The codling moth was accidentally introduced into British Columbia from Europe in the early 1900s.

News, Notices & Events

Keep up-to-date with everything happening at OKSIR.


Frequently asked questions about the Sterile Insect Release (SIR) program.