It was first detected in Canada in Point Pleasant Park in Halifax, Nova Scotia, but likely arrived 10 years or more before that in solid wood packaging material. It is of concern because it can kill healthy trees, though prefers those that are already stressed. Though it spreads slowly, there is a risk of the beetle's range expanding in to other areas of Canada. The Canadian Food Inspection Agency is working to slow the spread of the beetle by restricting movement of spruce products from the infested area. See more about brown spruce long-horned beetle in Canada. Biology In its Canadian range, adult beetles emerge from spruce trees from late May to mid-August.
Asian Long-horned Beetle
Asian Longhorned Beetle Biology
Male Female Adult Female. Adults are drawn to recently felled, stressed, or apparently healthy hardwood trees. Hosts include healthy maple, horse chestnut, birch, Rose of Sharon, poplar, willow, elm, locust, mulberry, chinaberry, apple, cherry, pear, and citrus trees. It may also attack other species of hardwood trees. In addition, nursery stock, logs, green lumber, firewood, stumps, roots, branches, and debris of a half an inch or more in diameter are subject to infestation. This beetle is only established in areas surrounding New York City and Chicago but has been intercepted in wooden crates and packing material originating from China at numerous sites around the country.
Asian Long-Horned Beetle
The adult Asian long-horned beetle emerges from the infested tree in May. Their emergence holes are about mm in diameter. The adult beetle is 2.
This is the Asian Longhorned Beetle, which recently hitchhiked to a warehouse in the Sacramento area from China. This is a very destructive pest, whose larvae burrow into trees, destroying the food and water "pipelines" that a tree needs to survive. The only surefire cure after an infestation? The life cycle of the Asian Longhorned Beetle is about a year.