Dynamics of insect natural enemies of bark beetles
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In 1994 a large area of mountain spruce forest was infested by the European spruce bark beetle (Ips typographus) in the Gandberg forest near Schwanden, canton Glarus,...
1994年，瑞士格拉鲁斯州（canton Glarus）施万登（Schwanden）附近的甘德贝格（Gandberg）林区内，大片山地云杉林遭到欧洲云杉八齿小蠹（Ips typographus）的侵害……
