1. UC IPM
Pale, raised spots on the upper side of a florist's daisy, <i>Chrysanthemum morifolium,</i> leaf infected with Chrysanthemum white rust, <i>Puccinia horiana.</i>.
Pale, raised spots on the upper side of a florist's daisy, Chrysanthemum morifolium, leaf infected with Chrysanthemum white rust, Puccinia horiana..
Credit: Central Science Laboratory, Harpenden, British Crown, Bugwood.org