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杨树天牛的危害面积虽然不大,但对其绝对不能忽视。黑龙江的“三北”防护林体系工程建设多以杨树为主,必须防止杨树天牛的扩散与蔓延。
Although the damage area of poplar is not large, its absolute must not be neglected. Heilongjiang “Three North ” shelterbelt project construction and poplar-based, we must prevent poplar days of the spread and spread.