![Puccinia horiana Puccinia horiana](/sites/default/files/photo/puccinia_horiana_puccinia_horiana.jpg)
Chrysanthemum white rust, Puccinia horiana ,on the upper leaf surface and stem of an infected Chrysanthemum. Infected Chrysanthemums are unmarketable resulting in large economic losses.
Chrysanthemum white rust, Puccinia horiana ,on the upper leaf surface and stem of an infected Chrysanthemum. Infected Chrysanthemums are unmarketable resulting in large economic losses.