Problem
Publication
Powdery Mildew

Elizabeth Bush, Virginia Polytechnic
Institute and State University, Bugwood.org
Powdery Mildew
(Oidium)
Powdery Mildew
Verticillium wilts

Paul Bachi, University of Kentucky
Research and Education Center, Bugwood.org
Wilt
(Verticillium)
Verticillium Wilt of Woody Plants
Tuliptree Scale

Lacy L. Hyche, Auburn University,
Bugwood.org
Tuliptree ScaleTuliptree Scale
Lacy L. Hyche, Auburn University, Bugwood.org

Lacy L. Hyche, Auburn University,
Bugwood.org
WeevilYellow-poplar Weevil