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”…

20130923-144542.jpg
For a more scientific discussion of this topic, read Baldo’s site. http://www.sactorose.org/ipm/83botrytis.htm

20130923-144552.jpg
UGLY! By any standards.

Advertisements

One thought on “Polka dotted roses

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

Please leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s