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1450 KLO Road
Kelowna, BC  V1W 3Z4

8B - 100 Kalamalka Lake Rd
Vernon, BC  V1T 9G1

2305 Government St
Penticton, BC  V2A 4W5

11401-115th Street
Osoyoos, BC  V0H 1V5

Spray Lines

250-763-7003, ext 2

250-766-2577, ext 801


Penticton & Area

Oliver & Osoyoos
250-498-3491, ext 4

All other areas
1-800-808-0228, ext 4



Sterile Moth Release Process

A major component of the SIR Program is the release of sterile codling moths into orchards.

SIR begins with the mass rearing and sterilization of adult moths through gamma radiation at the Osoyoos, BC, facility.  The facility is capable of producing 2 million sterilized moths per day.

Sterilized moths are delivered to orchards in plastic Petri dishes and kept cool so that they remain dormant.  Special devices mounted on 4-wheel ATVs release the moths into orchards in the service area on a weekly basis during the growing season.  The moths warm up and fly into the nearby host trees.

A successful sterile insect program requires that the sterile moth population overwhelm the wild, fertile, population, so that wild moths are likely to mate with a sterile moth, producing an infertile egg, and resulting in a decline in the codling moth population.

To be fully effective, sterile insect release must be applied over a large geographic area.  Good orchard sanitation must also be maintained, and reintroduction of wild codling moths into the area must be controlled or, ideally, prevented.

Sterile insect release is not a stand-alone method of control.  When wild codling moth populations are too high, growers will need to apply other control measures.




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