小麦赤霉病过去在我省很少发生流行。信阳、南阳地区虽早有发生,但从未造成灾害。七十年代中后期局部麦田发病较重,1976年邓县小麦品种百泉40,百泉41的病穗率达36%;禹县发病1000多亩,当年减产30%左右,品种为郑州761;1975、1981两年洛宁县水浇地麦田发生也很严重。1983年是我省历史上小麦赤霉病发生最严重的一年,估计有近三分之一的县、市发生。洛宁县有一个公社减产40%,严重的甚至绝收,就地烧掉。现 Wheat scab occurs rarely in our province in the past. Although Xinyang and Nanyang areas have already occurred, they have never caused any disasters. In mid-and late 1970s, the incidence of local wheat fields was relatively heavy. In 1976, the incidence of diseased spikes in Baiquan 40 and Baiquan 41 in Dengxian County reached 36%. In Yu County, the incidence of over 1000 mu was reduced by 30% in that year and the variety was Zhengzhou 761. In 1975 and 1981, the irrigated land in Luoning County was also very serious. 1983 is the worst year for wheat scab in our province, with an estimated one-third of counties and cities taking place. Luoning County, a commune cut 40%, serious or even accept, burned on the spot. Now