I know you have to have a license to spray chemicals on a lawn, but my question is do you have to get a license to spray Organic spray? it contains no chemicals so i wouldnt think you would need one but i dont know.
I just spoke with the MN department of agriculture yesterday. They told me as long as there is no pestcides, herbacides, in the mixture that I would not need a liscense. But instead I would need to purchase a Fertilazation Certification. Not sure how much it cost due to a discrepencey when I tried to purchase it so I have to call them back again and have them help me.