Replacement for Dormant Oil Spray
What would be good to use as a substitute in the spring since Ontario has banned dormant oil spray. The package used to have mineral oil and lime sulfur. Since I grow some ericaceous plants and use sulfur to acidify soil could I use that mixed with mineral oil. I am not a chemist and need some help with this. Also in Toronto it's a good time to spray roses and fruit trees, it's dry and sunny.