Whitney Cranshaw, Colorado State University, Bugwood.org
Pustules on the underside of leaf. Photograph taken November 3, 2007
Whitney Cranshaw, Colorado State University, Bugwood.org
Pustules on the underside of leaf. Photograph taken November 3, 2007
Symptoms on the upperside of leaf. Photograph taken September 24, 2007" >
Whitney Cranshaw, Colorado State University, Bugwood.org
Symptoms on the upperside of leaf. Photograph taken September 24, 2007
Lesley Ingram, Bugwood.org
rust (Puccinia malvacearum) symptoms on ( )
Lesley Ingram, Bugwood.org
rust (Puccinia malvacearum) sign on ( )
Elizabeth Bush, Virginia Polytechnic Institute and State University, Bugwood.org
rust pustules on upper surface of leaf
Dawn Dailey O'Brien, Cornell University, Bugwood.org
Hollyhock rust pustules on lower surface of hollyhock leaf.
Bruce Watt, University of Maine, Bugwood.org
Symptoms
Bruce Watt, University of Maine, Bugwood.org
Vertical section of telium
Bruce Watt, University of Maine, Bugwood.org
Vertical section of telium with teliospore evident
Bruce Watt, University of Maine, Bugwood.org
Telia on leaf underside
Bruce Watt, University of Maine, Bugwood.org
Vertical section of telium with teliospores