Dr. Murphy Westwood, director of <a href="http://www.mortonarb.org/science-conservation/global-tree-conservation" target="_blank" rel="noopener noreferrer">Global tree conservation</a> at the Morton Arboretum, and Dr. Rex Bastian from the <a href="http://www.davey.com/" target="_blank" rel="noopener noreferrer">Davey Tree Expert Company</a>, discuss the decline and possible extinction of several ash tree species, as well as threats to various types of oaks.

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.

Dr. Murphy Westwood, director of <a href="http://www.mortonarb.org/science-conservation/global-tree-conservation" rel="noopener noreferrer">Global tree conservation</a> at the Morton Arboretum, and Dr. Rex Bastian from the <a href="http://www.davey.com/" rel="noopener noreferrer">Davey Tree Expert Company</a>, discuss the decline and possible extinction of several ash tree species, as well as threats to various types of oaks.

September 23, 2017 – A Couple of PhDs Talking Tree Extinction

Mike and Peggy cover ever a little bit of everything green under the sun—the environment, gardening, local food, sustainable living and more—in a style that is casual, accessible, entertaining, informative and fun.

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September 23, 2017 – A Couple of PhDs Talking Tree Extinction

September 23, 2017 – A Couple of PhDs Talking Tree Extinction