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Pine beetle mortality in central Ontario
Last Post 11 Oct 2017 05:26 PM by ddeeks. 0 Replies.
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ddeeks
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11 Oct 2017 05:26 PM
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The white pine is located on the south east shore of Georgian Bay and showed no signs of disease or distress in 2016. The tree gradually lost lustre through the summer 2017 and all foliage browned in early September. Cambium layer riddled with galleries. Cross section of the tree shows sapwood stained blue. The stain is continuous through the outer two inches of the circumference of the sapwood from the base of the tree to within 10' of the crown where it becomes discontinuous. It appears consistent with a mtn pine beetle or southern pine beetle infestation. Two neighbouring pines have also died.

Is this a potential example of either of these pests entering central Ontario?
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