Dendroctonus valens is a dangerous insect pest of several pine species in China.
红脂大小蠹是我国一种危害油松等松树的外来入侵物种。
Aqueduct of Valens: Early 5th century. Part of the Roman water supply system for Istanbul.
渡槽蠹:5世纪初。部分罗马供水系统的伊斯坦布尔。
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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