Question From: New Berlin, New York, United States
Q: every year my wild beautiful pink roses get horrible brown spots or the entire leaf turn brown and dries up. I see no Japanese Beetles. I can not cure this, plus I don't like using chemicals so what can I use? These roses have blossomed only one year out of the 20 I have been here and that year I had buds all over the place. NO idea why. I don't want my name on the website no published. Thank you.
Sounds like a fungal disease called black spot and lack of sun. Roses need a minimum of six hours of sun a day. To fight the fungal disease you can use products such as Serenade or Natria Disease Control which contains Bacillus subtilis an organic fungicide that is environmentally safe when used according to package directions. Best And Happy Yardening, Nancy