王焕如同志的五一年锈病预测一文读过后,我们大体同意。根据我们历来的观察和记载,我们愿再加以补充和说明,使这方面的知识能经过讨论而更加明确一点。同时预测之后应当如何采取步骤来减轻锈病的传布,也是在本文讨论之內。当然我们的观察因为时间短,准确性较少。所幸的是一九四八年至一九五○年,这三年发生了三种锈病程度不同的年份。就是一九四八年是一个条锈病发生很普遍,可是发生时期晚,小麦受害不大。一九四九年是条锈病发生得很少的一年,可是一般小麦也因旱而发育不佳。一九五○ After Comrade Wang Huanru’s article on May 1 Rust Prediction was read, we generally agree. Based on our historical observations and records, we would like to supplement and explain the matter so that this knowledge can be clearer after discussion. At the same time predict how to take steps to reduce the spread of rust is also discussed in this article. Of course, our observations because of the short time, less accurate. Fortunately, from 1948 to 1950, three different years of rust level occurred in these three years. It was a stripe rust that was common in 1948, but the late occurrence of wheat strikes little damage. The year 1949 was a year in which the occurrence of the rust disease was scarce. However, wheat generally developed poorly due to drought. One nine five years