hollyhocks
- To: perennials@mallorn.com
- Subject: hollyhocks
- From: L*@aol.com
- Date: Wed, 2 Jun 1999 15:00:48 EDT
>>Anybody have any idea on how to control rust spots on my hollyhocks...
I've been cutting off the leaves that are really bad and tossing them in the
trash, not the compost pile, but its not really solving the problem.<<
Doreen,
Hollyhocks are prone to rust. There isn't a whole lot you can do, but it
does help to give them good air circulation. So, leave space between and
around the plants. Continue as you are to destroy the infected leaves. At
the end of the growing season, cut down the plants and carefully dispose of
them to pevent fungal spores that would infect next year's plants.
Sulfur sprays, such as those made by Safer and Concern, can be effective and
safe, but to work they must be applied repeatedly starting a few weeks before
the symptoms appear. You might want to try that next year.
Rust needs humidity to develop, so it is best not to use overhead watering on
hollyhocks and other susceptable plants.
Hope this helps, and good luck. --Janis
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