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小麦赤霉病的流行是菌源、花期及天气条件三者相互配合所致。在小麦扬花之际,即使有充足的菌量,若天气晴好,病害也不会大流行。所以,我们认为小麦花期的天气条件是赤霉病流行的决定因素。天气变化存在着固有的客观规律。小麦花期的天气又与前期的天气条件是密切相关的。因而小麦赤霉病发病率与前期天气条件也必定是相互关联
The prevalence of wheat head blight is a source of bacteria, flowering and weather conditions due to the three with each other. In the occasion of the flowering of wheat, even if there is sufficient bacteria, if the weather is fine, the disease will not pandemic. Therefore, we believe that the weather conditions of wheat florescence is the decisive factor for the prevalence of scab. There is an inherent objective law of weather changes. Wheat flowering weather and the weather conditions are closely related. Therefore, the incidence of wheat head blight and pre-weather conditions must also be interrelated