The Killer Cold Is Saving Lives
BY Christine Bowen
ON February 2, 2018
At this time you may not be thankful for 6 more weeks of winter, but here is one reason to be thankful for the ocld!

Asian Long Horned Beetles are considered one of the world’s 100 worst invasive species. The Asian Long Horned Beetle is a sapwood borer found in many hardwood species, attacking both coniferous and deciduous trees . Examples include Maples, Birches and poplars.  
The Asian Long Horned Beetle spends most of its life as larvae attacking healthy trees by boring inside tree trunks and large branches. Boring inside the tree compromises the vascular system of the tree and compromises the structural property of the tree, ultimately leading to the death of the tree. Adults feed throughout their lives on leaves, twigs or the tender bark of the host trees, causing damage to living trees.

The Asian Long Horned Beetle is of concern in North America, as simulations show that it has the potential to invade much of eastern North American. It hasn’t invaded all of North America as it is limited by cold weather (See the cold has its advantages) and tends to invade urban environments. However, that doesn’t help us here in Hamilton. With climate change, we can get warmer weather thus they will be able to survive winter. Furthermore, our harbour and marsh as its surrounded by urban areas! As their population rise here, it will be of particular concern to our maples which the Asian long horned beetle targets. Maples are commonly planted along streets and are a prominent component of northern hardwood forests and extremely important for tourism with respect to fall foliage and maple syrup production. Thus we must continue to do our best to manage them!

1. Dodds, K. J., and D. A. Orwig. (2011). An invasive urban forest pest invades natural environments—Asian longhorned beetle in northeastern US hardwood forests. Canadian Journal of Forest Research, 41(9), 1729-1742.

2. Haack, R. A., F. Hérard, J. Sun, and J.J. Turgeon.. (2009). Managing invasive populations of Asian longhorned beetle and citrus longhorned beetle: a worldwide perspective. Annual review of entomology, 55(1), 521.

3. Hu, J., S. Angeli, S. Schuetz, Y., Luo, and A.E. Hajek. (2009). Ecology and management of exotic and endemic Asian longhorned beetle Anoplophora glabripennis. Agricultural and Forest Entomology, 11(4), 359-375.

4. Smith, M. T., Tobin, P. C., Bancroft, J., Li, G., & Gao, R. (2004). Dispersal and spatiotemporal dynamics of Asian longhorned beetle (Coleoptera: Cerambycidae) in China. Environmental Entomology, 33(2), 435-442.

5. Simberloff, D., and M. Rejmánek. (Eds.). (2011). Encyclopedia of biological invasions (Vol. 3). Univ of California Press.

6. Yang, Z.M., X.N Wang, W.S. Yao, X.M .Chu, and P. Li. (2000) Generation differentiation and effective accumulated temperature of Anoplophora glabripennis (Motsch). Forest Pest and Disease, 19, 12–14
Author Bio - Christine Bowen
Program Coordinator for Bay Area Restoration Council
Program Coordinator for Bay Area Restoration Council

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