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The Wisconsin Gardener

New Weeds from the South

Clip: Season 21 Episode 4 | 6m 3s

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Climate change means new and stronger weeds. University of Wisconsin-Extension weed specialist Mark Renz shows how climate change will turn some of our existing weeds such as Canada thistle into super weeds. Plus, a look at some new weed threats from the south.

Aired: 03/20/13 | Rating: TV-G

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