小麦全蚀病近年来在我县部分乡(镇)相继发生,尤以西部六乡(镇)为重,严重影响了当地的小麦生产。为摸清我县小麦全蚀病的发生规律,寻求经济有效的防治方法,我们从1989年开始,组织力量对小川、索池、苏元、纸坊、沙坝、黄陈等六乡(镇)小麦全蚀病的发生情况进行了专题调查,并开展了综合防治试验,现将结果报告如下:一、发生概况小麦全蚀病是由全蚀病菌引起的一种根部病害。小麦感病后,分蘖减少,成穗低。千粒重下降。抽穗前发病的,往往因植株早期枯死而不能抽穗;拔节期发病的,植株高度降低15％～20％,有效穗数减少34.8％～45.0％,穗粒数减少13.3％～24.3％,粒重下降42.2％～48.9％,产量降低71％～73％;孕穗及 In recent years, total eclipse of wheat in some counties in our county (town) occurred, especially in the western six townships (towns) as a serious, seriously affecting the local wheat production. In order to find out the law of the occurrence of wheat eclipse in our county and to seek a cost-effective prevention and control method, we started to organize the activities of the six townships (townships) of Ogawa, Suochi, Suyuan, Zhifang, Shaba and Huangchen ) Wheat eclipse the occurrence of the disease carried out a special investigation and conducted a comprehensive prevention and control test, the results are reported as follows: First, the occurrence of wheat eclipse is a total eclipse pathogen caused by a root disease. After the wheat is infected, the tillering reduces, the ear becomes low. Thousand grain weight decreased. The incidence of pre-tassel, often due to early death of plants can not be heading; jointing incidence, the plant height reduced by 15% to 20%, the effective panicle decreased 34.8% ~ 45.0%, reduced the number of grains per spike 13.3% ~ 24.3% Decreased 42.2% ~ 48.9%, the yield decreased 71% ~ 73%; booting and