In this edition of ID That Tree, Purdue Extension Forester Lenny Farlee showcases the unique features of prickly ash. The northeast member of the Citrus family (not the Ash family!) is a shrub with ...
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 ...
Kristine Grayson receives cooperative agreement funding from the USDA Animal and Plant Health Inspection Service (APHIS) program for Plant Protection and Quarantine (PPQ). The emerald ash borer ...
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