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本文分析了１９８９年黔江县稻瘟病发生特点和流行原因。阐述了气候状况、品种抗性、栽培管理和防治等因素对稻瘟病流行的影响，主导因素是抗病品种单一化，大面积连年种植引起抗性丧失。提出坚持以抗病品种为基础的综合防治方法，即注意不同抗源的品种搭配和轮换种植，搞好品种的的合理布局；推广健身栽培技术；狠抓种子消毒，三环唑药剂浸秧，关键时期喷药防治，可以抑制稻瘟病的继续危害。
This paper analyzes the characteristics and epidemiology of rice blast in Qianjiang County in 1989. The effects of climatic conditions, variety resistance, cultivation and management, and control on the epidemic of blast were described. The dominant factor was the monoculture of disease-resistant varieties and the loss of resistance caused by planting in large areas. Proposed to adhere to the disease-resistant varieties as the basis for a comprehensive prevention and control methods, that is, pay attention to different varieties of resistant varieties with rotation and rotation, do a good job of a reasonable layout of varieties; to promote fitness cultivation techniques; pay close attention to seed disinfection, tricyclazole Pharmacy seedlings, The key period of spraying prevention and control, can inhibit the continued damage of blast.