Powdery mildew on Coccinia grandis caused by Golovinomyces tabaci in India

In March 2021, severe signs of powdery mildew were observed on leaves and stems of Coccinia grandis in the Manchar, Pune District, Maharashtra state, India. Based on morphological examination, phylogenetic analyses, and pathogenicity test, the causal agent of powdery mildew on Coccinia grandis was identified as Golovinomyces tabaci . To our knowledge, this is the first record of G. tabaci infecting C. grandis in India. Previously, G. tabaci had only been reported on C. grandis from Taiwan and Thailand.