Asian longhorned beetle
Asian longhorned beetle is an invasive species.
- Asian longhorned beetle prefer hardwood trees, such as maple, ash and birch.
- Adults and larvae feed on living host trees.
- The tree’s structural strength is impaired by the tunneling.
- Larvae can girdle and kill trees.
How to identify Asian longhorned beetles
- Adult beetles have long black and white banded antennae and a black body with irregular white blotches.
- They can be one to one and one half inches long.
- Larvae are off-white with a brown head and can grow to two inches long.
- Females chew oval grooves in the bark of host trees where they lay rice-size eggs.
- They can lay 25–40 eggs during the length of their adult lives.
- They begin to feed on the cambium layer, burrowing deeper into the tree during winter months.
- Adults make their way out by carving a large, pencil-size hole that is perfectly round.
Reviewed in 2019
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