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2017-09-28
Dr. Murphy Westwood, director of Global tree conservation at the Morton Arboretum, and Dr. Rex Bastian from the Davey Tree Expert Company, discuss the decline and possible extinction of several ash tree species, as well as threats to various types of oaks.
Categories | Uncategorized
Filetype: MP3 - Size: 23.98MB - Duration: 52:22 m (64 kbps 44100 Hz)