Has anyone heard of sprinkling corn meal on the ground under a rose bush to hinder black spot on the leaves? Has anyone tried this method?
No, not heard of it. Sounds highly implausible to me. If you want to try it, test it out on an experimental sample, and see if there is any difference with untreated plants.
Yep I agree, in another forum I was reading someone said if there was a magical organic fix we would all be using it. True in certain applications. I imagine any results I see would be hard to tie directly to corn meal.
Corn meal? Applied to the ground? Highly improbable, given the characteristics and life cycle of the fungus that causes black spots.
Thank you both, I did not think so either. However at the very least maybe my silly post could help dispel myth and be somewhat amusing to some.
I've heard of corn gluten meal as herbicide, that's probably what you had heard of also. http://www.puyallup.wsu.edu/~Linda Chalker-Scott/Horticultural Myths_files/index.html
