The generation and damage regulation of red turpentine beetle (Dendroctonus valens) are studied with the method of sample plot and tree-by-tree survey.
采用标准地调查和单株调查的方法，研究了红脂大小蠹的发生和危害规律。
The generation and damage regulation of red turpentine beetle (Dendroctonus valens) are studied with the method of sample plot and tree-by-tree survey.
采用标准地调查和单株调查的方法，研究了红脂大小蠹的发生和危害规律。
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