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三麦赤霉病在我省苏南及沿江地区每年都有发生。一般年份病穗率约5—20％,减产一成左右;流行年份病穗率可达50—80％,减产5成以上。它不仅影响三麦高产稳产,而且食用病麦还会引起人畜中毒,危害健康。过去主要是应用有机汞剂(如富民隆等)防治,效果虽好,但对人畜有积累中毒作用,不能在生产上继续应用。 为寻找防治三麦赤霉病的高效低毒新农药,从1971年冬开始,我所在有关单位的协作下,先在室内进行新药剂筛选工作。通过
Three wheat head blight in the province of southern Jiangsu and the Yangtze River every year. In general, the rate of diseased spikes is about 5-20% and the yield is reduced by about 10%. In the popular year, the rate of diseased spikes can reach 50-80% and the yield can be reduced by more than 50%. It not only affects the high yield and stable yield of Sanmai, but also eats the sick wheat and can cause the human and the animal poisoning, endangers the health. In the past mainly the application of organic mercury agents (such as Fu Minlong, etc.) control, although the effect is good, but the accumulation of poisoning effect on humans and animals, can not continue to be applied in production. In order to find a new pesticide with high efficiency and low toxicity against Fusarium graminearum, from the winter of 1971, I collaborated with the relevant units to carry out the screening of new pharmaceuticals indoors. by