Western provinces struggle to slow pine beetle's march

As the mountain pine beetle continues its march east of the Rockies through Canada's boreal forest, officials in Alberta and Saskatchewan are working to draw a proverbial line in the sand.

The beetle continues to gorge on trees in British Columbia and has gained a firm foothold in Alberta.

Experts are trying to halt its spread before it enters Saskatchewan's northern woodlands, where, if it adapts, it would have an unlimited buffet that would allow it to spread into other parts of the country.