Cockatoo damaged limbs

Ekka · 1st May 2008, 02:03 PM

Cockatoos like to chew off the bark on the tops of branches ... the collar.

In this example there's a "3 way" crotch. It's cockatoo ravaged.

I can never see the cambium growing back so what do you think the long term prognosis is for this union?

newguy18 · 1st May 2008, 02:51 PM

okay this might sound really stupid but maybe a thin grade of sheet metal like roof flashing held down with small nails cut to fit the gap but not going over the cambium.In theory it should callus over the edges of the meatal and hopefully seal.Maybe in time completely close up.

Ekka · 1st May 2008, 03:52 PM

I'm more worried about it from the angle of decay and no further supportive tension wood growth on the upper side to hold the limb up.

newguy18 · 1st May 2008, 04:49 PM

Maybe head the 3 leaders back to nodes,cable all 3 toghter and thin the canopy to lighten the load.I'd even go as far as to install bolts through the base of the unions.

treeseer · 1st May 2008, 07:59 PM

why won't the bark grow back over?

Ekka · 1st May 2008, 11:07 PM

Just doesn't, either the cockies come back and keep chewing it or they have taken too large a section like ring barking.

TrevMcRev · 2nd May 2008, 08:11 PM

Yep they do some nasty damage. Will have pics next week of a real bad union, also 3 way, with damage.

Tree had already had a failure at another cocky damaged union.

Ekka · 3rd May 2008, 12:46 AM

If you have a failure pic Trev I'D LOVE IT THANKS.

treestyle · 3rd May 2008, 05:33 PM

doesn't look like any target area shown in photo? with out aerial inspection can't really determine the extent of damage.

i reckon if there is no target area then leave the tree as is and give the cockies what they want. install nesting boxes or hollow logs in the 3 way fork, encourage them to chew on something else upon returning or have habitat ready for them to move into?

worst cases scenario, if you can talk client in to it, annual inspections of damage. i couldn't imagine limb failure caused by that damage for atleast a couply years if not more.

i know that human safety is a priority, however trees and birds have been this sort of thing for a long time, and we should let them continue this behaviour as much as we can.

Ekka · 3rd May 2008, 08:12 PM

Development site mate, they're going to build very close to it or under it.

Buildings to last say 50 years+, what about the tree?

Cant cut off the two branches, that's like half the tree. Can reduce and thin etc but what is the long term prognosis?

newguy18 · 4th May 2008, 10:16 PM

Quote:

Originally Posted by Ekka

Development site mate, they're going to build very close to it or under it.

Buildings to last say 50 years+, what about the tree?

Cant cut off the two branches, that's like half the tree. Can reduce and thin etc but what is the long term prognosis?

how sound is the wood?If its getting rotten or soft i'd just remove it and get it over with.

treestyle · 6th May 2008, 03:22 AM

long term, could be managed with lots of money! but is that likely or realistic?

MTS247 · 6th May 2008, 03:45 AM

Unsuitable for retention due to damage.

Would you retain it if the union was bifurcated with included bark? ie identified fault.

If they are building close to it they will stuff the root system anyway.

They are probably looking for an excuse to remove it anyway

If the limbs are not to big you could "cobra cable" it. not hold the tree together but as a back up if the tree fails.

1st May 2008, 02:51 PM	#2 (permalink)
newguy18 Tree World Icon Join Date: Jun 2007 Location: Live Oak Florida home of the crapiest trees you will ever see. Posts: 2,185	Re: Cockatoo damaged limbs okay this might sound really stupid but maybe a thin grade of sheet metal like roof flashing held down with small nails cut to fit the gap but not going over the cambium.In theory it should callus over the edges of the meatal and hopefully seal.Maybe in time completely close up. __________________ Have your say join us today. http://www.youtube.com/watch?v=Xzkd_m4ivmc http://www.youtube.com/watch?v=Xzfzb...eature=related http://www.youtube.com/watch?v=x-OqK...eature=related

1st May 2008, 03:52 PM	#3 (permalink)
Ekka Eric Frei Administrator - Brisbane L5 (Dip) Hort Cert III Arb + some Join Date: Jan 2007 Location: Brisbane Posts: 5,663	Re: Cockatoo damaged limbs I'm more worried about it from the angle of decay and no further supportive tension wood growth on the upper side to hold the limb up. __________________ Remember to use the "search" function, if you have answers/questions post them so everyone can benefit. Free Tree and Green Industry Link Directory Qualified Brisbane Tree Lopping Brisbane Tree Care, Consultations and Arborist Reports Forum Sponsors

1st May 2008, 04:49 PM	#4 (permalink)
newguy18 Tree World Icon Join Date: Jun 2007 Location: Live Oak Florida home of the crapiest trees you will ever see. Posts: 2,185	Re: Cockatoo damaged limbs Maybe head the 3 leaders back to nodes,cable all 3 toghter and thin the canopy to lighten the load.I'd even go as far as to install bolts through the base of the unions. __________________ Have your say join us today. http://www.youtube.com/watch?v=Xzkd_m4ivmc http://www.youtube.com/watch?v=Xzfzb...eature=related http://www.youtube.com/watch?v=x-OqK...eature=related

1st May 2008, 07:59 PM	#5 (permalink)
treeseer Afterburner is shakin' Join Date: Jul 2007 Location: SE USA Posts: 408	Re: Cockatoo damaged limbs why won't the bark grow back over? __________________ Guy Meilleur \| Forensic Arborist \| Better Tree Care

1st May 2008, 11:07 PM	#6 (permalink)
Ekka Eric Frei Administrator - Brisbane L5 (Dip) Hort Cert III Arb + some Join Date: Jan 2007 Location: Brisbane Posts: 5,663	Re: Cockatoo damaged limbs Just doesn't, either the cockies come back and keep chewing it or they have taken too large a section like ring barking. __________________ Remember to use the "search" function, if you have answers/questions post them so everyone can benefit. Free Tree and Green Industry Link Directory Qualified Brisbane Tree Lopping Brisbane Tree Care, Consultations and Arborist Reports Forum Sponsors

2nd May 2008, 08:11 PM	#7 (permalink)
TrevMcRev Astronaut Join Date: Feb 2007 Location: Melbourne, Victoria, Australia. Posts: 670	Re: Cockatoo damaged limbs Yep they do some nasty damage. Will have pics next week of a real bad union, also 3 way, with damage. Tree had already had a failure at another cocky damaged union. __________________ Melbourne Arborist, Total Tree Care, Pruning, Tree and Stump Removal

3rd May 2008, 12:46 AM	#8 (permalink)
Ekka Eric Frei Administrator - Brisbane L5 (Dip) Hort Cert III Arb + some Join Date: Jan 2007 Location: Brisbane Posts: 5,663	Re: Cockatoo damaged limbs If you have a failure pic Trev I'D LOVE IT THANKS. __________________ Remember to use the "search" function, if you have answers/questions post them so everyone can benefit. Free Tree and Green Industry Link Directory Qualified Brisbane Tree Lopping Brisbane Tree Care, Consultations and Arborist Reports Forum Sponsors

3rd May 2008, 05:33 PM	#9 (permalink)
treestyle Fly'n Join Date: Jun 2007 Location: North Brisbane Posts: 119	Re: Cockatoo damaged limbs doesn't look like any target area shown in photo? with out aerial inspection can't really determine the extent of damage. i reckon if there is no target area then leave the tree as is and give the cockies what they want. install nesting boxes or hollow logs in the 3 way fork, encourage them to chew on something else upon returning or have habitat ready for them to move into? worst cases scenario, if you can talk client in to it, annual inspections of damage. i couldn't imagine limb failure caused by that damage for atleast a couply years if not more. i know that human safety is a priority, however trees and birds have been this sort of thing for a long time, and we should let them continue this behaviour as much as we can.

3rd May 2008, 08:12 PM	#10 (permalink)
Ekka Eric Frei Administrator - Brisbane L5 (Dip) Hort Cert III Arb + some Join Date: Jan 2007 Location: Brisbane Posts: 5,663	Re: Cockatoo damaged limbs Development site mate, they're going to build very close to it or under it. Buildings to last say 50 years+, what about the tree? Cant cut off the two branches, that's like half the tree. Can reduce and thin etc but what is the long term prognosis? __________________ Remember to use the "search" function, if you have answers/questions post them so everyone can benefit. Free Tree and Green Industry Link Directory Qualified Brisbane Tree Lopping Brisbane Tree Care, Consultations and Arborist Reports Forum Sponsors

6th May 2008, 03:22 AM	#12 (permalink)
treestyle Fly'n Join Date: Jun 2007 Location: North Brisbane Posts: 119	Re: Cockatoo damaged limbs long term, could be managed with lots of money! but is that likely or realistic?

6th May 2008, 03:45 AM	#13 (permalink)
MTS247 Gettin' motoring Join Date: Feb 2008 Location: Australia Posts: 25	Re: Cockatoo damaged limbs Unsuitable for retention due to damage. Would you retain it if the union was bifurcated with included bark? ie identified fault. If they are building close to it they will stuff the root system anyway. They are probably looking for an excuse to remove it anyway If the limbs are not to big you could "cobra cable" it. not hold the tree together but as a back up if the tree fails.

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