Oil To Treat Fly Eggs In Ground And On Leaves

Question From: Franklin, Michigan, United States
Q: A week or two you mentioned treating some kind of fly that lay their eggs in the ground. I think you mentioned some kind of mineral oil to pour on the ground and coat the plant leaves . I have a problem where rose leaves are entirely eaten by little things that turn into little worms. What is this mineral oil you are talking about and where do I get it or make it.

A: The product is a dormant oil and can be purchased online and at most garden centers. Best And Happy Yardening, Nancy