小麦赤霉病是我国长江流域麦区的重要病害,是小麦高产、稳产的主要障碍。过去,我省小麦赤霉病仅在东部地区发生较重。近几年来,随着耕作制度的改变和小麦新品种的不断引进,该病已成为我省小麦生产上的主要问题。特别是1975年赤霉病大流行,发生一般的中部地区,小麦减产30％。1976年赤霉病为中等偏轻的年份,这类地区小麦减产8％。为了尽快促进小麦生产的发展,提出切合我省情况的赤霉病预测技术,指导防治,减轻病害损失。因此,自1976年开始进行小麦赤霉病流行规律的研究。现将三年来研究结果汇总如下: Wheat scab is an important disease in the wheat area of ​​the Yangtze River valley in China and a major obstacle to high yield and stable yield of wheat. In the past, wheat scab in our province occurred only heavier in the eastern region. In recent years, with the change of farming system and the continuous introduction of new varieties of wheat, the disease has become the main problem of wheat production in our province. In particular, the 1975 pandemic was a pandemic. In the general central region, wheat production was reduced by 30%. Fiscal year 1976 was a modest year with moderate to moderate headwinds, with wheat cut by 8% in these areas. In order to promote the development of wheat production as soon as possible, we put forward the forecasting technology of scab to suit the situation of our province, guide the prevention and cure and lessen the loss of the disease. Therefore, research on the epidemiology of wheat head blight has been carried out since 1976. Now three years of research findings are summarized below: