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作者介绍了山东林木主要病害─—林木枝干病害的一些基本情况；提出对林木病害应注重寄主、病原和环境间的生态学研究。
The author introduced some of the main diseases of forest trees in Shandong ─ ─ some branches of tree diseases; put forward the importance of forest disease should focus on host, pathogen and environment between the ecological research.