(Salem, OR) -- The invasive insect emerald ash borer has been found at three new locations in Oregon. They were found in trees at a Tualatin shopping center parking lot, at a business north of Newberg and at a house north of Silverton. The adults lay eggs under the bark and the larvae kill the tree by boring into it. An infestation grows when firewood is moved, or when cut ash trees are moved. The Oregon Department of Forestry wants you to go online to learn how to identify ash trees and the signs of an emerald ash borer infestation.