I have a limited budget. I would like a recipe to make spray that removes powdery mildew. I heard that you can use Murphy’s Oil Soap and baking soda. Not sure the ratio of the ingredients, so if you could help me, I would be grateful.
I have found on my roses and columbine large numbers of a small black insect, at most 1/8 inch long and very thin. I had never seen them before; they do not look exactly like thrips. For all I killed with a spray, more appeared and did damage, also on new citrus leaves and flew in swarms. There was also balling of some of my rose buds.