2 Answers
Hi Anish,
Please check link http://www.organicgardening.com/learn-and-grow/powdery-mildew !
Thanks, Green Ecosystem
Answer for how to control organically powdery midew in cabbage
Dear Aneesh, You can opt for Bacilllus/Trichoderma spray.
answered by Ravikiran Khartode
Answer for how to control organically powdery midew in cabbage