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水稻霜霉病是我县近年来水稻上新发生的１种病害。该病在水稻秧田期发生危害，已给水稻育秧工作带来很大影响。１９９６～１９９８年３年调查及防治研究表明，水稻霜霉病的发生轻重主要与育秧阶段气候条件、育秧方式、品种以及秧田管理有密切关系；防治上应以控制病菌传播、改变育秧方式和选择健株移栽为主，辅以在秧苗显青期前的药剂保护。
Rice downy mildew is one of the new diseases occurred on rice in our county in recent years. The disease occurred in the rice seedling damage, has brought great impact on rice seedling work. From 1996 to 1998, the investigation and prevention and control of 3 years showed that the occurrence of downy mildew in rice is closely related to climatic conditions, breeding methods, varieties and management of seedling in the stage of seedling growth. Controlling the spread of germs should be controlled to change the way of seedling and selection Health-plant transplanting mainly supplemented by the medicinal agent before the young seedling stage.