Agricultural Productions Systems McLeod/Meeker counties Now is an excellent time to be controlling Canada thistles. It is ...

From: Laura Kieser, Dan Martens and Nathan Winter, University of Minnesota Extension Now is an excellent time to be controlling Canada thistles. It is important to clip or apply herbicides to ...

For more information visit Midwest Invasive Species Information Network (MISIN). Canada thistle forms extremely extensive root systems that need to be repeatedly damaged to keep them from growing back ...

When it comes to common weeds, few are as problematic as Canada thistle. This plant has a tenacious and fast-growing root system. A single seed is all it takes for an entire patch to spring up and ...

Easily recognizable due to its vase-shaped purple flowers with dandelion-like seeds, Canada thistle (Cirsium arvense) is a particularly aggressive invasive plant. Despite its name, Canada thistle ...