Mary Ellen (Mel) Harte, Bugwood.org

Steve Dewey, Utah State University, Bugwood.org

Steve Dewey, Utah State University, Bugwood.org

Ohio State Weed Lab , The Ohio State University, Bugwood.org

Montana Statewide Noxious Weed Awareness and Education Program , Montana State University, Bugwood.org

Mary Ellen (Mel) Harte, Bugwood.org

Ohio State Weed Lab , The Ohio State University, Bugwood.org

Ken Chamberlain, The Ohio State University, Bugwood.org

Montana Statewide Noxious Weed Awareness and Education Program , Montana State University, Bugwood.org

Caleb Slemmons, National Ecological Observatory Network, Bugwood.org

David Stephens, Bugwood.org