outofmytree
Addicted to ArboristSite
I need to borrow some brain power folks. I was called out to remove a dead Liquid Amber. The tree was poisoned IMO based on the 12 holes "drilled" in to the trunk and the evident decay surrounding those wounds. In addition the tree was in full leaf only 12 months ago and went into decline between Christmas '08 and Easter '09. I have attached a few photographs here to outline my own thoughts.
First note it is the only dead tree in the area other than some Seridium infected Cypress. In fact, Liquid amber do very well in Perth and readily exceed 25 metres height as fast as 1 metre per year in the right location.
Good all round form other than the poor crotch marked in red. An easy cable job in the future (had the tree not died of course).
Lots of suspiciously uniform holes both in diameter,depth and location on the trunk.
So I am thinking that this was a well executed kill. Neat holes, well spaced out and all less than 4 inches deep. Given the size of the tree and the small fluid volume each hole could hold I am guessing a solution of Glyphosate and diesel. Undiluted glyphosate often fails to kill trees because it damages cells before the herbicide can translocate but I know guys who mix it with diesel and report succesful stump control.
What do you all think? Was there another reason other than poisoning to explain this trees rapid decline and death? If the tree was poisoned what was used and how was it mixed and applied?
I have posted more photographs here if it helps.
http://www.arboristsite.com/showthread.php?t=116610
First note it is the only dead tree in the area other than some Seridium infected Cypress. In fact, Liquid amber do very well in Perth and readily exceed 25 metres height as fast as 1 metre per year in the right location.
Good all round form other than the poor crotch marked in red. An easy cable job in the future (had the tree not died of course).
Lots of suspiciously uniform holes both in diameter,depth and location on the trunk.
So I am thinking that this was a well executed kill. Neat holes, well spaced out and all less than 4 inches deep. Given the size of the tree and the small fluid volume each hole could hold I am guessing a solution of Glyphosate and diesel. Undiluted glyphosate often fails to kill trees because it damages cells before the herbicide can translocate but I know guys who mix it with diesel and report succesful stump control.
What do you all think? Was there another reason other than poisoning to explain this trees rapid decline and death? If the tree was poisoned what was used and how was it mixed and applied?
I have posted more photographs here if it helps.
http://www.arboristsite.com/showthread.php?t=116610