Portland City Council has adopted the updated Portland Urban Forest Plan, focusing on tree canopy expansion, especially in ...
An invasive, tree-killing pest has made its way to Portland, spelling trouble for the many ash trees that cool residential neighborhoods on hot summer days. On Wednesday, Oregon forestry officials ...
Some Portland neighborhoods’ tree-lined streets may suffer more than others from emerald ash borer
About 95,000 ash trees live in Portland, and most of them could become infected and die in the next few years with the recent arrival of the emerald ash borer, an invasive, tree-killing pest that’s ...
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