 If you're a landowner, chances are you've done weed control on your property. Well you know there's a special class of weeds that are so bad they're called noxious weeds. And the one in particular I'm going to talk to you today about is Russian napweed, like the study shows behind me. Russian napweed is a native of the Asian continent, but it's found it's true calling here in the North American West where hundreds of thousands of acres are being impacted by this one plant. What makes this plant so vile is that it has such a deep taproot system it can survive extraordinary times of drought. But as the leaves fall off and collects on the soil surface it creates a zinc barrier so toxic that other plants can't live there. And the other thing is it displaces all of our native vegetation. Now the other thing about Russian napweed is that we find that animals find this truly unpalatable. In fact with horses they can become very very sick by eating too much Russian napweed. Now folks like the University of Wyoming have a vested interest in researching this. They want to kill it but bring back the natural vegetation and that's why you see these strip spots throughout here is that we're using different types of chemistry to try to control this thing and yet bring back the natural vegetation. Sometimes exploring the nature of Wyoming has a noxious side to it. This has been Tom Hill for the University of Wyoming Cooperative Extension Service exploring the nature of Wyoming.