Comments on: Discussion: Potential tree failure makes for difficult decisions http://www.gufc.org/http:/www.gufc.org/discussion-potentail-tree-failure-makes-for-difficult-decisions/ Sustaining Georgia's Green Legacy by Helping Communities Grow Healthy Trees Wed, 07 Dec 2011 15:15:51 +0000 hourly 1 http://wordpress.org/?v=3.1.3 By: Johnny Lam http://www.gufc.org/http:/www.gufc.org/discussion-potentail-tree-failure-makes-for-difficult-decisions/comment-page-1/#comment-861 Johnny Lam Wed, 10 Aug 2011 14:31:21 +0000 http://www.gufc.org/?p=597#comment-861 In HongKOng, all tree failures are proved to have it's defects, as the climate here is hot and wet, and the damages by termites is not unusual. All professional guidance are expensive,and lacking the kind of specialist in this small island. So whenever there are typhoons, it counts on your luck whether you are the target or not. In HongKOng, all tree failures are proved to have it’s defects, as the climate here is hot and wet, and the damages by termites is not unusual. All professional guidance are expensive,and lacking the kind of specialist in this small island. So whenever there are typhoons, it counts on your luck whether you are the target or not.

]]> By: Onebark, LLC http://www.gufc.org/http:/www.gufc.org/discussion-potentail-tree-failure-makes-for-difficult-decisions/comment-page-1/#comment-9 Onebark, LLC Tue, 13 Oct 2009 20:05:03 +0000 http://www.gufc.org/?p=597#comment-9 As a clarification, the casual research I performed was in regards to tree failures during the slew of high-wind weather events in April of 2009 only. We were seeing loading speeds of over 50 mph, which is very unusual. Of those failures that I recorded, 67% had a defect, but only 38% had a defect that was plainly visible prior to failure. Twenty-three percent of the failures did not have an quantifiable defect at all. As a clarification, the casual research I performed was in regards to tree failures during the slew of high-wind weather events in April of 2009 only. We were seeing loading speeds of over 50 mph, which is very unusual.

Of those failures that I recorded, 67% had a defect, but only 38% had a defect that was plainly visible prior to failure. Twenty-three percent of the failures did not have an quantifiable defect at all.

]]> By: Ed Macie http://www.gufc.org/http:/www.gufc.org/discussion-potentail-tree-failure-makes-for-difficult-decisions/comment-page-1/#comment-8 Ed Macie Tue, 13 Oct 2009 17:05:50 +0000 http://www.gufc.org/?p=597#comment-8 Emphasis should be placed on "visual". To accurately complete the statement: "95% of the trees that fail have some type of defect which results in that failure. Those defects may not be visable in 35% of all failures." Decisions to remove trees should be based on the best available science, and application of a hazard rating that considers, the tree part(s), likelihood of failure, and target potential. Ed Emphasis should be placed on “visual”. To accurately complete the statement: “95% of the trees that fail have some type of defect which results in that failure. Those defects may not be visable in 35% of all failures.”

Decisions to remove trees should be based on the best available science, and application of a hazard rating that considers, the tree part(s), likelihood of failure, and target potential.

Ed

]]> By: Neil http://www.gufc.org/http:/www.gufc.org/discussion-potentail-tree-failure-makes-for-difficult-decisions/comment-page-1/#comment-7 Neil Tue, 13 Oct 2009 15:36:35 +0000 http://www.gufc.org/?p=597#comment-7 38% seems awfully high, in speaking with a consulting arborist in Atlanta, the number of trees he has observed with no sign of defect is closer to 5%. Resistagraph testing might also reduce the percentage of trees where no defect was visible. 38% seems awfully high, in speaking with a consulting arborist in Atlanta, the number of trees he has observed with no sign of defect is closer to 5%. Resistagraph testing might also reduce the percentage of trees where no defect was visible.

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