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Brown Spruce Longhorn Beetle
an informational guide
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The larvae of the brown spruce longhorn beetle kill trees by tunneling into the cambium and phloem layers disrupting the essential transfer of nutrients. Heavy beetle infestations can girdle a tree cutting off the nutrient flow
completely. A girdled tree invariably dies. Aside from members of the spruce family, in Europe, the beetles have been known to attack firs, pines, larches and, occasionally hardwoods.
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