David Posted October 20, 2006 Share Posted October 20, 2006 We have, or had, three very large oak trees in our garden. Last week one of the trees, which did look rather sickly, fell down. The root system was exposed showing that there were no roots left, all having either rotted, or been eaten away. We are now cutting it up for firewood.While cutting it up we have found that it had been extensively attacked by capricorn beetle.The second tree also looks rather sickly, and we have found evidence of capricorn beetle, so it will be felled soonest.Both of these trees had never been pruned, so the trunks are large and straight.We have a third tree which at some point in the past been pruned (or pollarded?) at about 12 feet above the ground. Now it has a thick trunk to about 12 feet high, and above that there are many branches reaching to the sky. It is about perhaps 70 feet high, and very beautiful. This tree is very close to the house, and also the overhead electricity supply to our house and the adjacent farm (the wires go through the tree branches). If this tree falls it could be very dangerous.After finding capricorn beetle in the fallen tree, we inspected the third tree and found about a dozen exit holes of the capricorn beetle in the trunk. The tree looks generally healthy, and produces lots of acorns, but there are the first signs of distress in that some branches seem to have died at the ends, and have reduced leaf cover. Similar to the other two trees but not nearly so advanced.I wonder if there is anything we can do to protect this tree from the capricorn beetle, and also what is the life expectancy of a large oak tree after capricorn beetle infestation. How safe is the trunk?I have tried a google search, but apart from many gory photos of the beetle, nothing tells me how to protect the tree, or what the tree's life expectancy might be.Many thanks,David Link to comment Share on other sites More sharing options...
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