Harveson Robert M, Schwartz Howard F, Urrea Carlos A, Yonts C Dean
University of Nebraska, Panhandle Research and Extension Center, Scottsbluff, NE 69361.
Colorado State University, Bioagricultural Science and Pest Management, Fort Collins, CO 80523.
Plant Dis. 2015 Dec;99(12):1665-1677. doi: 10.1094/PDIS-03-15-0299-FE. Epub 2015 Oct 22.
Bacterial wilt, caused by Curtobacterium flaccumfaciens pv. flaccumfaciens, was first recognized and described as a new dry bean disease near Redfield, SD after the 1921 growing season on the farm of the Office of Forage Investigations. Between the late 1930s and the early 1950s it became one of the more problematic bacterial diseases of dry beans. It became an endemic problem in dry bean production throughout western Nebraska and other areas of the central high plains during the 1960s and early 1970s. By the early 1980s, the disease had virtually disappeared with the implementation of cultural practices. The disease was rediscovered in two fields in Nebraska late in the 2003 season. It was assumed to be an isolated incident. However, the next season the pathogen was widespread throughout western Nebraska production fields. Our research suggests that the return of bean wilt throughout the central high plains over the last decade is not due to a single factor but a combination of new changes in cultural practices, environmental stresses, and unfamiliarity with the pathogen and its past history.
由萎蔫短小杆菌萎蔫致病型（Curtobacterium flaccumfaciens pv. flaccumfaciens）引起的细菌性萎蔫病，于1921年生长季过后，在南达科他州雷德菲尔德附近，首次被认定并描述为一种新的菜豆病害，当时是在饲料调查办公室的农场里发现的。在20世纪30年代末至50年代初期间，它成为菜豆中较具问题的细菌性病害之一。在20世纪60年代和70年代初，它成为内布拉斯加州西部及中部高平原其他地区菜豆生产中的一个地方性问题。到20世纪80年代初，随着栽培措施的实施，这种病害几乎消失了。2003季后期，在内布拉斯加州的两块田地中重新发现了这种病害。当时认为这是一个孤立事件。然而，在下一季，病原菌在内布拉斯加州西部的生产田地中广泛传播。我们的研究表明，在过去十年里，细菌性萎蔫病在整个中部高平原地区的再度出现，并非单一因素所致，而是栽培措施的新变化、环境压力以及对病原菌及其过往历史缺乏了解等多种因素共同作用的结果。
