According to the occurrence of forest pest during the "12th Five-Year" Plan Period, this paper selected five kinds of major forest pest including Hyphantria cunea, Matsucoccus matsumurae, Massicus raddei, Cryptorhynchus lapathi, Valsa sordida as evaluation objectives, direct and indirect economic loss evaluation were conducted.The results showed that lost caused by five kinds of major forest pest in Fengcheng City was 613.767 77 million yuan.Among them, the direct economic loss was 872.18 thousand yuan, the indirect economic loss was 612.895 59 million yuan.%根据凤城市"十二五"期间林业有害生物发生情况,筛选出美国白蛾、日本蚣干蚧、栗山天牛、杨干象、杨树烂皮病5种主要林业有害生物作为灾害损失评估对象,进行直接和间接经济损失评估计算.结果表明,凤城地区"十二五"期间5种主要林业有害生物造成的年均损失为61 376.777万元,其中,直接经济损失87.218万元,间接经济损失为61 289.559万元.
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