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Oregon Arborist receives dual honors

Terrill Collier, an arborist, owner and president of Collier Arbor Care in Portland, Ore., is this year’s recipient of the International Society of Arboriculture’s (ISA) prestigious Honorary Life Membership Award and has been named an ISA True Professional of Arboriculture for 2013. The Honorary Lifetime Membership is awarded to ISA members who have contributed substantially […]