Dr. Christmas Tree Archives - Northwest Public Broadcasting

“Dr. Christmas Tree” working to prevent disease in Northwest conifer trees

By Lauren Paterson December 21, 2023

Gary Chastagner stands near a green fir tree while wearing a black WSU jacket and jeans.

Gary Chastagner, a Washington State University professor called “Dr. Christmas Tree” shows an example of a less-desirable tree due to fewer top branches, grown in a small plantation of Turkish […]Read More

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