At blooming stage to study panicle blight symptom by spraying bacterial suspension on spikelets was efficient method. Disease symptoms on rice varieties, Jasmine rice 105 and Supanburi 60 showed seedling and stem blight & seedling stage and panicle blight & dirty seed symptom on blooming stage. These evidences showed disease symptom as same as previous report of bacterial panicle blight disease caused by Burkholderia glumae (Chen, 2013).