Corn Meal for fungus control
On other forums here at GW people have reported some success with corn meal.
Has anybody tested it on roses for blackspot, powdery mildew and rust?
Would it be as good as Daconil as a fungicide for tomatoes?
If it works, please describe how it is done (applied how, quantity, frequency, etc.) Corn meal seems much friendlier than the chemicals at Home Depot.