小麦白粉病宏观管理技术体系初探

Preliminary studies on the macro-scope management technique system of Blumeria graminis

根据近年来小麦白粉病宏观管理的研究和宏观植物病理学原理,结合多年从事全国小麦主要病虫害预测预报及其宏观管理的实践经验,提出实施小麦白粉病宏观管理,应以病害监测预报、流行区划、防治药剂筛选、损失测定与防治指标等基础研究为基础,以选育和推广种植抗病品种和保健栽培为主线,以控制菌源基地为重点,以科学用药为最后防线,从而达到提高作物抗病能力,减少病原基数,推迟发病始期,降低流行速率,控制大面积病害流行的目标。

According to the principles of macro scope plant pathology and the study on macro scope management of Blumeria graminis in recent years, as well as the practice experiences of working on prediction and macro scope management of the major pests and diseases of wheat for many years, macro scope management strategies of Blumeria graminis were proposed as follows: The macro scope management of Blumeria graminis should be based on the researches achievements on the prediction and monitoring of the disease, zoning of its epidemic areas, selection of effective fungicides and estimations of losses and its economical index; selection and extension of resistant varieties and healthy culture must be implemented as the main management measures, emphasizes should also be put on the control of the inoculums from its propagation bases, and fungicides should only be applied as the last defense line. The macro scope management of Blumeria graminis is in targets to improve wheat resistance, decreasing resource inoculums, alleviate the incidences of the diseases, and reduce its epidemic rates, thus the prevention of Blumeria graminis epidemics in large areas could be achieved.