Management of a New Powdery Mildew on Poinsettia
In 1988, a new powdery mildew first appeared on poinsettia crops in North America. Few powdery mildew fungicides were labeled for use on poinsettia and the biology of the fungus, an Oidium species was relatively unknown. Research was initiated to obtain information critical for disease management.
Source: • American Floral Endowment Special Research Reports #107