Puccinia malvacearum


Puccinia malvacearum, also known as hollyhock or mallow rust, is a species within the genus Puccinia known for attacking members of the family Malvaceae. An autoecious pathogen, it can complete its life cycle using a single host.
Plants affected by the rust include Abutilon, Alcea, Hibiscus, Lavatera, Malva, Malvastrum and Sphaeralcea.
Suggested control measures include sanitation or treatment with fungicides.