通过接种,小区试验和大田验证,证明凋萎型白叶枯病稻桩上潜在病菌可以存续至第二年5月份后并仍能传病,因之它是稻草、种子以外的又一主要菌源。初步看来稻桩上的病菌主要在秧田期传染,但菌量大时,也可以在本田期侵染,所以在凋萎型白叶枯病严重地区,除狠抓秧田期防治外,还应当注意本田前期的防治。 Through inoculation, plot experiment and field validation, it was proved that the potential bacteria on the rice pile of wilting bacterial leaf blight could persist after May of the next year and still be able to transmit disease, so it is another major bacterium besides straw and seed source. It is initially believed that the bacteria on the rice pile is mainly transmitted in the seedling stage, but when the bacteria amount is large, it can also be infected in the Honda period. Therefore, in severe wilting bacterial blight disease areas, Attention to the prevention and treatment of Honda earlier.