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One of the leading weed pests in Western Canada, wild oats are grassy annual weeds prone to the development of herbicide resistance. Their seeds...

Narrow-leaved hawk’s beard is a tough-to-control winter annual considered a noxious weed under the Saskatchewan Weed Control Act. A prolific seed...

Canada thistle is a persistent weed that has threatened the yields of farmers far longer than Canada has been a country. A member of the sunflower...

Stork’s bill is a winter annual weed that was introduced from Europe in the 1700s, and can now be found throughout Canada. This member of the...

The fourth most common weed in Western Canada, volunteer canola is especially challenging to control in herbicide-tolerant crops like soybeans. It...

Sow thistle is a perennial weed that can grow in a wide variety of environmental conditions and is currently found in all Canadian provinces...