First report of maize ear rot caused by Fusarium concentricum in China.
Maize ear rot caused by Fusarium spp. causes yield losses and can involve mycotoxin contamination. In July 2018, a survey was conducted during the late milking stage in Guangxi Zhuang Autonomous Region, China. Incidence was 3-25% in surveyed fields. Diseased ears with similar symptoms caused by Fusarium spp., including kernels covered with white, pink, or salmon-colored mold, were collected for analysis. The causal pathogen was isolated and identified as Fusarium concentricum based on morphological characteristics, molecular data (sequence analysis of TEF-1α, mtSSU, β-tubulin gene and calmodulin gene (CAM)) and pathogenicity tests. This is thought to be the first report of F. concentricum causing maize ear rot in China.