Asian longhorned beetle (ALB) has a glossy black body with white spots on top of its wings. Adults are 3/4″ to 1″ long. Antennae are roughly 2 times the body length with distinctive black and white bands. The legs and antennae may have a bluish tinge. Adults are present from July to October.
Habitat:
ALB attacks hardwood trees including maple, horse chestnut, ash, and more, and can survive in most regions of the country where host trees exist.
Threats & Impacts:
Adults feed on leaves and twigs; larvae feed directly on critical bark layers. Repeated attacks lead to dieback of the tree crown and eventually death.
Management Techniques:
The only management technique for Asian longhorned beetle is to destroy infested trees.
Asian longhorned beetle closely resembles the native whitespotted pine sawyer. ALB lacks a white spot between its elytra (wing covers), which is present on the pine sawyer.