Central Okanagan

Photo: Contributed - BC Forestry Ministry

A Hiller 12-E helicopter spraying B.t.k.

The Ministry of Forests, Lands and Natural Resource Operations plans to aerially treat up to 28,000 hectares of forest in the Okanagan to reduce populations of western spruce budworm. 

The proposed treatment areas are located near Bear Creek, the Ellis-Carmi forest service road, Clark Creek, Inkameep, Madden Creek, Naramata Bench, Okanagan Falls, Naramata Mountain, Shingle Creek, Sheep Creek, West Kelowna and Westwold.

Click here to see the map of the areas being sprayed.

The pest management plan and maps of treatment areas can also be viewed at the Thompson Okanagan Region Forest Health Program office at 441 Columbia Street in Kamloops.

Photo: Contributed - Ministry of Forests

Mature western spruce budworm larvae.

The biological agent Foray 48B will be applied by helicopter on or about June 20-26, 2012, weather permitting.

Foray 48B is a biological insecticide that is widely used in BC and is registered with the Organic Materials Review Institute. The active ingredient in Foray 48B is the naturally occurring bacterium Bacillus huringiensis var. kurstaki (Btk).

This spray only affects moth and butterfly larvae and can be used safely around humans and other animals.
Birds, household pets, fish and beneficial insects (including honey bees) are not affected.

The western spruce budworm is an insect that is native to BC and the Pacific Northwest. In its larval stage, it defoliates Douglas-fir, true firs, spruce and larch trees. A budworm outbreak has the potential to seriously harm or kill trees over large areas.  

At the bottom of the story, below the map, we have loaded more information on the Western Spruce Budworm.

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Photo: Contributed - Forestry Ministry

Map of the spray area