Rust on roses refers to a fungus that can be prevented by using a general fungicide spray, but it also helps to get rid of bad leaves. Prevent rust from occurring on roses in any season with help from an urban horticulturist and gardening adviser in this free video on growing roses. Expert: Stan DeFreitas Contact: AskMrGreenThumb.com Bio: Stan DeFreitas, also known as “Mr. Green Thumb”, has experience as an urban horticulturist working for the Pinellas County Extension Service, and has taught horticulture at St. Petersburg College. Filmmaker: Christopher Rokosz
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