Hollyhocks (Alcea spp.) http://www.durgan.org/ShortURL/?LZSAA 25 June 2008 Hollyhocks (AIthaea spp.) Rust. Apparently Aithaea has been changed Alcea by the plant people. (Caused by the fungus Puccinia malvacearum), and some of my hollyhocks are infected. Rust disease and is found nearly everywhere hollyhocks are grown. The rust also occurs on mallow. The disease progress during the Summer and totally destroys the beauty of the hollyhock plant. The plant still flowers but has the appearance of stick with blooms. My control is to remove the leaves as they become infected, and place in the garbage not the compost heap. In the Fall the hollyhocks are cut down and the area flamed with a propane garden torch, during a wet spell. If the flaming is extensive and through the rust is severely inhibited. Flaming does not destroy the plant, due to it deep root system. Chemical treatment was found to be ineffective in my limited experience. Also avoid wetting the foliage when watering, and allow as much air as possible around the plants. http://www.durgan.org/ShortURL/?WIZEK 3 July 2008 Hollyhocks (Alcea spp.) My variety has been reduced by Hollyhock rust and winter kill. http://www.durgan.org/ShortURL/?MMSNC 17 July 2008 Hollyhocks (Alcea spp.) Three types in Garden. I notice hollyhock rust is present- spots on some of the leaves.
Re: Hollyhocks (AIthaea spp.) http://iihao.notlong.com 3 July 2008 Hollyhocks (Alcea spp.) My variety has been reduced by Hollyhock rust and winter kill.
