fromABC7 Los Angeles2 weeks agoEnvironmentCelebrate Tyler Arboretum's trail reopening with a new challengeEmerald ash borer infestation forced Tyler Arboretum to remove over 1,500 ash trees, close trails temporarily, and launch a 17-mile trail challenge.
fromHigh Country News1 month agoEnvironmentWatching the Oregon ash vanish - High Country NewsEmerald ash borer infestation reached Oregon, infesting and killing ash trees in urban areas and detected by a Portland biologist.
fromABC7 Los Angeles2 weeks agoEnvironmentCelebrate Tyler Arboretum's trail reopening with a new challenge
