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会议指出:三北防护林病虫鼠害面积占77％,林木害虫对防护林的危害正以惊人的速度蔓延扩散,其严重性不亚于87年5月大兴安岭特大火灾
The meeting pointed out: Three-North Shelterbelt area accounted for 77% of pests, pests and forest pests on the shelterbelt is spreading at an alarming rate, the seriousness of no less than in May 1987, the Greater Khingan Range