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Three staff trained to fly

Sterile Insect Release program to use drones

Mar 25, 2021 | 6:00 AM

The Okanagan-Kootenay Sterile Insect Release Program (SIR) is taking off…literally.

“This is the first year we will be using drones in specified areas to release the moths. It sounds like a much more efficient way to release the moths,” Armstrong Coun. Shirley Fowler, who is a board member of S.I.R., told North Okanagan Regional District politicians.

Specially-equiped four-wheel ATV’s have been used as the main delivery method for the moths since the program started in 1992.

Sterile insect technology (SIT) was developed in the 1930’s and first applied to control screw worm pests in 1953. Described as “birth control for insects,” the technology works by pairing sterile male insects with wild female insects so that the females are unable to produce viable offspring.

The moth larvae burrow into hard fruits like apples and pears, ruining them.

Roughly 35 million sterilized moths are released each summer in orchards from Osoyoos to Salmon Arm.

The success of SIR has led to a 94 per cent reduction in codling moth and a 96 per cent reduction in pesticides used against them.

Fowler also reported that eradiating the moths may become a thing of the past, as new x-ray technology is being studied to sterilize the insects.

The American National Nuclear Security Administration is bringing together representatives from different SIT programs to determine the need and constraints of the x-ray technology.

“There may be an opportunity for the S.I.R. program to be one of the test sites for the x-ray, so that would be quite a saving financially,” Fowler added.

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