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东方田鼠(Microtus fortis Büchner)别名沼泽田鼠、远东田鼠、大田鼠,属啮齿目仓鼠科田鼠亚科田鼠属。分布在东北、内蒙、陕西、江苏、浙江、福建、湖南等省。1983年在本区的青铜峡市大坝乡等地发现严重危害林木和农作物,此外在中卫、中宁、吴忠、灵武等县市亦有发生。为了防止其为害,从1983年至1985年我们在青铜峡市大坝乡用人工模拟生境饲养观察的方法,结合野外定点观察及大面积普查,观察了东方田鼠的生态习性并进行了防治试验。一、危害情况据在青铜峡市的调查,东方田鼠危害水稻、小麦、玉米等多种农作物和树木。如1984年9月在大坝乡大坝村四队调查水稻56.7亩,其中受害面积5.1亩,被害率占9%,严重的地方,
Microtus fortis Büchner alias Marsh Field Mouse, Far Field Microtus, field mice, is a rodent Hamster Microtus subsp. Microtus. Distribution in the northeast, Inner Mongolia, Shaanxi, Jiangsu, Zhejiang, Fujian, Hunan and other provinces. In 1983, Daqiang Township, Qingtongxia City, found serious damage to trees and crops. In addition, counties like Zhongwei, Zhongning, Wuzhong and Lingwu also occurred. In order to prevent it from harm, from 1983 to 1985, we used the method of artificial artificial habitat feeding in Dam Township, Qingtongxia City. Combined with field observation and large-area general survey, we observed the ecological habits of Microtus fortis and conducted prevention and control tests. First, the damage According to the investigation of Qingtongxia City, the voles endangered rice, wheat, corn and other crops and trees. For example, in 1984 September in Da Ba Village, Dam Township investigation of 56.7 acres of rice, of which 5.1 mu of harmed area, the rate of victims accounted for 9% of serious places,