Puccinia malvacearum explained

thumb|right|Puccinia malvacearum on Pelargonium geranium

Puccinia malvacearum, also known as hollyhock or mallow rust, is a fungal 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.

It was originally found on the leaves of a species of Malva in Chile.Other plants also affected by the rust include Abutilon, Alcea (Hollyhock),^[1] Hibiscus, Lavatera, Malvastrum and Sphaeralcea.

Suggested control measures (in the US), include sanitation (removal or destruction of affected plants or plant portions) or treatment with fungicides.

See also

• List of Puccinia species

Other sources

• Hollyhock Rust: Puccinia malvacearum. University of Colorado Extension Service.
• Rust of Hollyhock. University of Nebraska Department of Plant Pathology.

Notes and References

1. O'Donnell . K.L. . Mclaughlin . D.J. . Ultrastructure of meiosis in the hollyhock rust fungus, Puccinia malvacearum 1. Prophase I—Prometaphase I. . Protoplasma . 1981 . 108 . 3–4 . 225–244. 10.1007/BF02224421 .