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| Home > Asian Longhorned Beetle > How does it harm the tree? |
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Asian Longhorned Beetle an informational guide |
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| Home > Asian Longhorned Beetle > How does it harm the tree? |
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Asian Longhorned Beetle an informational guide |
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· Introduction · What it looks like · What it does » · When it is active · Control
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How does it harm the tree? | |
Beetle exit holes (E) and where eggs are laid (O) on a maple tree. |
Sawdust from beetles chewing their way out of a tree. |
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The Asian longhorned beetle is extremely destructive. The damage is caused by beetle larvae which burrow deep within a tree to feed on its food and water conducting
vessels. Continued feeding causes structural defects and eventually kills the life-sustaining cambial layer by girdling. Mature beetles then burrow out of the tree leaving holes the diameter of ball-point pens.
Heavy Asian Longhorned Beetle infestations can kill otherwise healthy adult trees.
Above images courtesy US Forest Service |
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