近十多年来轮纹病在我县的发生时轻时重,一九六八和一九七八年是两次大发生年。一九七八年崖子公社 里大队和育黎公社孙家沟大队病果率曾高达50 %以上,经济损失严重。最近三年,以一九八二年最轻,八一和八三年为中度发生年。为更有效的推行轮纹病的综合防治,我县根据八三年省农? In the past ten years or more, the incidence of ring rot disease in our county was light and heavy, and 1968 and 1978 were two major occurrences. In 1978, the brigade of the Yazi Commune and the brigade of the Sunjiagou Brigade of the Li Li Commune were as high as 50% or more with serious economic losses. In the recent three years, the year was the lightest in 1982 and the period in 1981 and 1983 respectively. In order to implement the integrated prevention and treatment of ring rot more effectively, our county will save more than 80 million yuan