Emerald ash borerWhat is the Emerald Ash Borer? It is an insect that arrived in North America in 2002 from Asia. Unfortunately, this insect also ended up in Quebec. The insect traveled in raw ash wood and in packaging materials made of this wood. The problem is that this pest attacks ash trees with no known predators. The emerald ash borer is a terrible pest. This beetle gnaws on the wood inside a tree, making serpentine galleries when it is in its larval state. Then, it comes out, winged, and attacks the foliage.
The effects of the emerald ash borer on treesThe bug can take an average of about five years to completely kill an ash tree. The younger the tree is, the faster the pest gets the job done. Curiously, the insect starts its attacks high up and then works its way down the plant. In terms of larval activity, the larvae eventually interfere with the flow of sap, thus preventing the plant from feeding. Visible external signs include early yellowing, balding of leaves, and loss of bark.
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