The rice variety Xiushui227 is resistant to neck blast at three crucial panicle stages (the booting stage, the preliminary heading stage (PHS), and the full heading stage (FHS)) that controlling neck blast, and the resistance is better in the necks at the FHS than at the PHS.The other rice variety Liangyou6326 is susceptible to neck blast at these three panicle stages, and the degree of disease is severer in the necks at the PHS than at the FHS.