Spotted Knapweed plagues MD

Chris Davis, Pincher Creek Voice

The Municipal District of Pincher Creek Council discussed the growing knapweed problem plaguing our area, in particular near the Oldman River Reservoir and east of it,  at their meeting on September 27.  "It concerns me that this is happening around one of the largest water sources in the area," said Deputy Reeve Bjorn Berg.
The knapweed is spreading downriver, starting at Summerview, with an estimated 100 acres infested, according to MD Fieldman Shane Poulsen.  "It was a specially good year for it, all of it grew," explained Poulsen.  He expressed his belief that the MD could do a better job of removing the knapweed and other similar threats than outside organizations.  "They tend to come at the wrong times," he said. "I come from the perspective that we can do the better job."


Council discussed a possible three-year program (a "forever program" according to Reeve Rod Cyr) that might cost $60,000 a year to "knock it back."  A five year plan of suppression was also discussed.

"We may have to give a weed notice," opined Reeve Cyr.  "I would also like to get the railway's attention."
Spotted knapweed is also spread by trains and flourishes alongside the tracks.

Additional information:

The Alberta Weed Control Act can be read by clicking here.

From Parks Canada's website:

Spotted knapweed is an invasive plant from Eurasia that was introduced accidentally to North America in the 19th century when its seeds were brought here among alfalfa seeds. It is a member of the Asteraceae family, which includes, among other plants, asters, daisies, thistles and, of course, dandelions. This plant has wreaked havoc across Western Canada and in at least 14 U.S. states. It reduces the amount of fodder for livestock and wild animals and tends to invade monocultures. Part of the reason it succeeds so quickly in establishing itself is its prolific seed production, which can be as high as 140,000 seeds per square metre. In addition, its seeds remain viable for 8 years and easily stick to cultivated hay and to vehicles. When you add the fact that its roots are toxic, stunting the growth of other plants nearby, you get a plant that rivals the dandelion in tenacity.

Spotted knapweed is very hard to eliminate, most commonly having to be removed by hand.

visit  www.pc.gc.ca to learn more.