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近年来南方部分丘陵地区农田鼠密度有所回升,湖南省常宁鼠情监测点调查结果表明,2010年1-4月平均鼠密度较2009年同期平均鼠密度上升1倍;2010年5月农田鼠密度达到12.90%。常宁农田以黄毛鼠和黑线姬鼠为优势种,分别占61.29%和29.03%,繁殖指数分别为2.33和2.25,黑线姬鼠繁殖指数高于洞庭湖丘岗区同期的平均值,体型较大的黄毛鼠和褐家鼠增加较快;2011年4月江西新余市丘陵区的农田害鼠密度为11.97%.以黑线姬鼠为优势种。对上述鼠害均需要采取控制措施。
In recent years, southern part of the hilly areas of rat density has increased, Hunan Changning mouse test point survey showed that the average rat density from January to April 2010 compared with the same period in 2009 average mouse density increased 1 fold; May 2010 Farm mouse The density reaches 12.90%. The Changning farmland was dominated by Rattus norvegicus and Apodemus agrarius, accounting for 61.29% and 29.03%, respectively. The reproductive index was 2.33 and 2.25, respectively. The reproductive index of Apodemus agrarius was higher than that of the same period in Dongting Lake, Larger Rattus norvegicus and Rattus norvegicus increased rapidly; in April 2011, the pest density in farmland of Xinyu City in Jiangxi Province was 11.97%, and Apodemus agrarius was the dominant species. Control of these rodents need to take control measures.