近日,陕西省植保总站下发通知,部署有关市开展玉米茎基腐病调查工作。据介绍,玉米茎基腐病是玉米生产上重要的病害之一,是由多种病原菌侵染造成根系和茎基腐烂的病害,主要由腐霉菌、炭疽菌、镰刀菌侵染引起,属于典型的土传病害,其病菌在病残体组织内外、土壤中存活越冬,成为翌年主要侵染源,田间可借风雨、灌溉水、机械和昆虫进行传播,发生多次再侵染。连作年限越长,土壤积累病菌越多,发病危害越重,对玉米生产造成严重威胁。近年来,陕西不同区域茎基腐病发生为害有上 Recently, Shaanxi Provincial Plant Protection Station issued a notice to deploy the city to carry out corn stalk rot research. According to reports, corn stem rot is one of the important diseases in corn production is caused by a variety of pathogen infection root and stem rot, mainly caused by Pythium, anthrax, Fusarium infection, are typical Of the soil-borne diseases, the bacteria in the diseased tissue inside and outside the body, the survival of the soil overwintering, became the main source of infection the following year, the field can be by wind and rain, irrigation water, machinery and insects spread, repeated re-infection occurred. The longer the duration of continuous cropping, the more bacteria accumulate in the soil, the more severe the disease is and pose a serious threat to the corn production. In recent years, different regions of Shaanxi stem rot occurs