BEND, Ore. (AP) — A weed-killer that killed thousands of ponderosa pines near Sisters has been linked to the deaths of other trees outside Sunriver and possibly across Oregon.
Dale Mitchell, the Oregon Department of Agriculture program manager, says an investigation found that the active ingredient in Perspective may have killed dozens of ponderosa pines outside Sunriver.
The Bulletin reports the Deschutes County Road Department sprayed the herbicide along two main roads that lead in and out of Sunriver in 2013 and 2014.
Chris Doty, the department’s director, says the roadside spraying is done to reduce the amount of flammable grass.
The Oregon Department of Agriculture has notified the U.S. Environmental Protection Agency of the situation. The offices are discussing the possibility of strengthening the language on the label for Perspective.