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黄土高原旱作区河南省灵宝市一带，农田主要害鼠为终生营地下活动的棕色田鼠。对农作物的危害极为严重。作者在小麦成熟期调查麦田断垄长度与麦垄总长的比例，并测量了小麦单位面积产量，估计了由于鼠害而造成的作物损失量。依据经济损害水平估算了棕色田鼠对麦田的经济阈值为１８．２０只／ｈａ。应用溴敌隆、杀鼠迷、毒鼠磷、灭鼠优和Ｃ型肉毒梭菌毒素杀灭棕色田鼠，均取得理想的效果。
Loess Plateau arid area Henan province Lingbao area, the main pest farmland for the life of the underground activity of brown vole. The damage to crops is extremely serious. The authors investigated the ratio of the length of the broken ridge in the wheat field to the total length of the ridge during the mature wheat period, measured the yield per unit area of wheat, and estimated the crop loss due to the rodent damage. The economic threshold of brown field vole was estimated to be 18.20 ha / ha based on the level of economic damage. The application of bromadiolone, warfarin, tetramine, rodenticide and C botulinum toxin to kill brown vole (Microtus brandti) all achieved the desired results.