Monday, March 19, 2012

Powdery Mildew on Georgia Collards

I have a little bit of an issue with powdery mildew on my Georgia Collard Greens. I planted these from seed late last Fall and they have been very prolific. However, the older leaves are developing white powdery mildew.

Here is a better shot of the mildew. The air is not humid this time of year, even in Florida. I may have watered these too much over the winter. Next time I plant them I think I will space them farther apart.

I mixed one teaspoon of baking powder with 32 ounces of water in a spray bottle and applied. I will have to wait and see how well this works.


  1. Dry milk in a full watering can worked on my zinnias last spring. Everything I read said: good luck of you didn't prevent it. And spacing is important especially in our climate.

  2. Thanks for the comment. I have also heard that dry milk is a good option. I did not try that one myself because one of my sons is allergic to milk. I will follow up later to report if the baking powder method was effective.