Asian long-horned beetle ALHB is an invasive forest pest with no natural enemies in North America that attacks nearly all broadleaf trees, with native Maples being the preferred host. Adults lay their eggs in hardwood trees, and larvae then tunnel through the living tissue of the tree stopping the flow of water and nutrients, killing it. There have been very few sightings of ALHB in Ontario and it is important to be on the lookout for this dangerous invader. Several native non-harmful beetles can be easily confused with ALHB, so take a close look at how to identify this beetle listed below. Asian long-horned beetle is native to China and Korea where it is considered a major pest causing mortality of Elm, Maple, Poplar and Willow trees. By November susceptible host trees were being removed from the area to eliminate possible ALHB habitat.
The Asian longhorned beetle Anoplophora glabripennis is a wood-boring beetle believed to have been introduced into the U. Asian longhorned beetle ALB larvae bore through wood of a wide variety of hardwood species, most notibly maples, elm, horsechestnut, willow, sycamore and birch. ALB boring phsycially weakens the trees and disrupts sap flow. Branches with boring damage are more likely to break off, creating a public saftey hazard. Trees will eventually be killed by ALB boring damage. Additional infestations were found in Long Island, Manhattan and Queens.
Lifecycle Stages Asian longhorn beetles spend about 7 days within the pupal chamber as an adult before exiting the natal host China. Longevity of female and male beetles was China , and 73 days on A. However, Asian longhorn beetles dispersal potential over a single season was found to be 1,m and 1,m, for male and gravid female beetles, respectively Smith et al.
Adults : Adults are active from early summer to mid-fall. They feed on the bark of twigs periodically throughout the mating and egg-laying period. On sunny days, the adult beetles are most active from mid-morning to early-afternoon.