小麦全蚀病在我国早于二十年前曾在内蒙、河北等地有发生记载,并做过一些调查研究。近十年来,随着耕作制度改革、水浇面积扩大及其他生产条件的改变,病害发展较快,初步调查,全蚀病已在十六个省(市)、自治区的部分小麦产区相继发生。纵观全国情况,目前多数小麦产区仍属无病区,有些地方全蚀病只是在局部地块零星发生。全蚀病主要集中在水流充足、小麦连作区的一些高产单位,这些地方病害发生普遍,受害程度较重,对小麦产量威胁很大。小麦罹病后,一般减产1—2成,重者减产5成以上。因此,在小麦全蚀病的防治工作中,如何因地制宜地实施保护无病区、控制零星病区、减轻重病区为害的防治策略,是关系到防治工作成败的关键,现就有关这方面的问 Total eclipse of wheat in our country as early as 20 years ago in Inner Mongolia, Hebei and other places have occurred, and did some research. In the past ten years, along with the reform of farming system, the expansion of irrigated area and the change of other production conditions, and the rapid development of diseases, preliminary survey shows that eclipse disease has occurred in some wheat producing areas in 16 provinces (municipalities) and autonomous regions . Looking at the national situation, most of the wheat-producing areas are still disease-free areas. In some places, the total eclipse only occurs sporadically in local plots. Total eclogite is mainly concentrated in some high-yielding units with sufficient water flow and continuous cropping of wheat. The occurrence of these diseases is widespread and the degree of victimization is severe, threatening the yield of wheat. After the wheat disease, the general reduction of 1-2%, severe cases, more than 50% cut. Therefore, in the prevention and treatment of total eclipse of wheat, how to carry out the prevention and cure of disease-free zones according to the local conditions, control of scattered wards and lessening the incidence of wounded areas is the key to success of the prevention and control work.