Dutch Elm Disease
Clip: Season 20 Episode 4 | 5m 24s
The streets of most American cities used to be lined with gorgeous elm trees providing a lot of beautiful shade. Thanks to Dutch elm disease, that’s a thing of the past. Unfortunately the disease is still very much around. Plant Pathologist Brian Hudelson teaches us how to identify Dutch elm disease.
Aired: 05/13/12Video has closed captioning.