Polka dotted roses

If I would not have slacked off on my preventative fungicide treatments before the rainy season began, you would not have been able to see the following examples of botritus blight (AKA Gray Mold) in my rose garden. Some roses are more susceptible to the fungus than others. The light colored roses seem to be magnets for the fungi spores. They seem to be genetically susceptible. So this is what I call “a teachable moment”. I was deadheading and saw botritus. I have had beginner Rosarians ask why their rose is getting “pretty polka dots”…

For a more scientific discussion of this topic, read Baldo’s site. http://www.sactorose.org/ipm/83botrytis.htm

UGLY! By any standards.


One thought on “Polka dotted roses

  1. Pingback: Polka dotted roses | All Things Rose | Scoop.it

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