Welcome to the Sterile Insect Release ProgramThe Sterile Insect Release (SIR) Program is an area-wide and environmentally friendly approach to managing the codling moth, one of the BC tree fruit industrys most damaging and costly pests. The SIR Program operates in the fruit growing areas of the Okanagan, Similkameen and Shuswap Valleys, where the tree fruit industry plays an important role in the lives of residents and commercial growers. (Updated September 15, 2014)A Benefit-cost Analysis of the Okanagan Kootenay Sterile Insect Release Program final report is now available through the Okanagan College Library here .2014 Degree Days are now being updated here .(also available from main menu on the left)Orchard Neighbourhood maps for 2014 are available here . more... See more text