Does anyone know how to get rid of powdery mildew in greenhouse tomatoes, either ny chemical or otherwise???
Hi Debra, Here you go. http://www.backyardgardener.com/tv/mildew.html Or Baking Soda Spray Recipe: Mix one teaspoon of baking soda and one quart of water in a spray bottle. Add a few drops of dishwashing liquid. Adding 1/2 teaspoon of oil, such as Sunspray Dormant Oil, or even Canola oil may increase the effectiveness against black spot and other fungal diseases. Apply liberally. Newt