Asian Longhorn Beetle

this pest is a very recent arrival to North America: Brooklyn (1996), Chicago (1998), and New Jersey (2002)
the Asian Longhorn Beetle probably hitched a ride to North America from Asia in wooden cargo crating
in 2003, the beetle was found attacking trees in the Toronto area
CFIA declared the beetle eradicated in April 2013 after five years of negative survey results in the quarantine zone. A second infestation was found in August 2013 in Mississauga, ON. This area is currently under active eradication.

adult beetles can be up to 35 mm long (1.4 in) not counting the black- and white-banded antennae that are longer than the body
larvae are whitish and are 50 mm long (2 in) when mature
both larvae and adult beetles attack deciduous trees
adults generally emerge in the summer and feed on twigs and leaves
eggs are laid on twigs, trunk, or roots and the larva hatch in one to two weeks
larvae feed on living tissue by tunneling below the bark of limbs and the trunk
the beetle has a one- to two-year life cycle and can overwinter as egg, larva, pupa, or adult

able to attack and kill healthy trees
damage to trunk tissue usually kills the tree within one or two years
prefers maple, poplar, elm, willow, horse chestnut, mountain ash, sycamore, hackberry and birch

early detection and aggressive removal of infected trees are crucial to stop the spread of this insect
careful monitoring of areas adjacent to known outbreaks is important to prevent re-establishment
in most cases, all trees within a large area around an infection site are removed and destroyed
wood, nursery stock, or tree parts of susceptible species may not be removed from the area around an infection site unless they have been treated to kill the pest
there are no known natural predators
an insecticide has been used in the US to spray trees in the area around an infestation to reduce the chances of spread but no insecticides are registered for this purpose yet in Canada

Tree Killers: Asian Longhorn Beetle