What do you think of this?

[treeseer]

"the prognosis is ... removal in the long term.
that's the recommendation, right? A Prognosis is a guess, not advice.

That rock-hard wood may be what's left afterremoval of cellulose by a selective fungus. Very hard but very brittle.

"It would be a good one to dissect and see what's going on with that base. I can't even drill a flamin hole in the tree.
I hate drills; very seldom use em for diagnosis. You can't even use a rubber mallet to sound for hollowness in that bottle-butt, or a trowel to find the flare?
NO tools besides your eyes :Eye: ?

 

[treeseer]

Ekka, the pathogen on both eucs appears to be Cryphonectria (aka Diaporthe) cubensis. E saligna is rated highly susceptible. Perhaps the renowned euc expert Dr. Lopa will confirm this.

Both infections appear to be beyond treatment; hard to figure what your instructor would recommend besides removal. I found it in a book written at Cornell U in New York, USA (p. 190, Diseases of Trees and Shrubs--symptoms in pics very similar). There must be disease reference works in AU too, right? It's important to know your enemies.

 

[a_lopa]

 

[RedlineIt]

>"Oh, by the way, this is a real busy site and this is in a traffic island with vehicles travelling all around it!"<

I am no diagnostician, don't know my pathogens from my mycelia, for lo, I am but a humble climber. But I have seen this type of damage before while working boulevard trees for a municipality.

Possibly multiple vehicle hits? Tree gets to work closing the original wound and it gets whacked/sideswiped again? Can't tell from the photos, Ekka, but can you get a sense from the traffic pattern if this tree is just in a vulnerable spot?

Traffic Division of the local Police force might even provide you with accident stats for that intersection.

Or I could be full of crap, for lo, I am but a blah, blah, blah...

 

[treeseer]

A Simple but Valuable Tool

Lo I too am but a humble climber, who happened to pick up this book

https://secure.isa-arbor.com/comersus/store/comersus_searchItem.asp
(whoops, link no good--it was jus ta pic of the book cover)

and played :Eye: match-the-picture, just like I did in elementary school. It's kinda fun--this toy costs $66 but it's fun to play with, lasts a long time. It's the most fun to share it with your tree-owning friends, who will think you're hot $tuff for making elementary use of a common reference. :angel:

 

[John Paul Sanborn]

Here are some pictures of C. cubensis at a USFS image library.

http://www.forestryimages.org/cgi-bin/searchthumb.cfm?searchparam=Cryphonectria

The last two are chetsnut blight though, C. parasitica (which I'm told is saprophytic in red oaks, for anyone out west where it has not taken hold. Clean your gear, if you rec climb oaks east of the rockys.)

 

[treeseer]

Big John, that forestryimages is a SWEET resource--thanks!

BTW, chestnut blight is a pathogen on live oaks; I treated one in Richmond last year with Cambistat. Can't wait to see it this year.

 

[treeseer]

A little followup, mate?

Hey Ekka how'd your diagnosis class project go?

Inquiring Minds want to know...

 

[Ekka]

Well

It's finished and handed in to get marked.

I reckon it'll score around 90%. Turned out real good and AS is in the bibliography. I must admit I quite enjoyed "raving on" about options other than removal. But I did recommend removal after 12 months if there is no significant improvement. I detailed the process down to traffic control, time estimation etc and did a whole section on appropriate replanting and selected species to suit the soil conditions of the site.

Must remember that the standard of this report is to reflect the depth of knowledge that this course has given us ... but my personal depth is greater so the lecturer is going to get a few surprises.

Next report is on a row of street trees (atleast 10).

Problem is everywhere you look over here all you get is eucs, eucs and more eucs. And palms but they suck.

Thank you all for your help and that info on the fungi was real handy.

 

[treeseer]

Thank you all for your help and that info on the fungi was real handy.

Check's in the mail, right?

But seriously, when you locate that downunder pest reference, post it here so your mates can use it. There's no better way to impre$$ your customers than to show them you know what's attacking their trees, and how you can defend them.

 

[timberbeast]

Hi Ekka,
Looks like a lot of basal rot to me. Try using an increment borer to examine the extent of the rot in the heartwood or a stress metronome timer. The foilage is good, however, there may be some liability issues should the tree fail in a good wind storm. Should possibly consider removal and replacement.

Timberbeast

 

[ROLLACOSTA]

Timberbeast iwouldn't recommend an increment borer, resistagrapgh used sparingly yes ,but defo not a borer way to invasive.

IMO the tree looked like a catalog of many problem's which i doubt would ever get better ,root damage ,compaction ,starvation ,fungal attack..

EKKA did you recommend decompaction for the root area in your report

 

[Jim1NZ]

compaction - Try a 'grow gun'

What did you recommend in the end Ekka?

 

[Ekka]

Well I went to attach the report and couldn't do it, it's 6.2meg size.

I recommended air injection because of severe compaction, application of gypsum (1kg/m2), worms, soil injection of Confidor to help with scale and psyllids, organic fertilizer, pull mulch away from trunk and thin it out as too thick and soil is too damp

Deadwood and crown reduction to reduce striking distance and wind throw.

Three monthly review and retreatment.

In one years time if no significant improvement it gets culled. And replaced with a more suitable species for that environment, a melaleuca.

 

[Jim1NZ]

Wow seems like you have got all the bases covered!
What about irrigation, not that it needs it at the moment!

 

[Ekka]

Yeah there was irrigation pipes but I don't know if they're working etc, this was a street tree.

But it hasn't stopped showers since you brought that Kiwi weather with you gettin wet every day and now I'm fighting off a cold.

The last of that trees problems is water, all other trees nearby are doing very well.

I detailed the removal procedure and the replacement so I'll romp this one in, but on a serious side ... this is real life and that things just sitting there!

I'll email the council. And some other tree co will get the job.

 

[Ekka]

100% result for tree reports

For those who care I just got my reports back ... result was 100%

 

[Jim1NZ]

You are the man!

Just had tree inspection level 6 the last 3 days. What a mission! Learning heaps though

 

[Ekka]

Yeah

Now just gotta find out where in the real world you can make money with all this knowledge?

Hey Jim, remember where we cut that chitty umbrella tree down & did that big stump grind (huge pile of mulch) and that tulip tree was leaning toward the house with a dirty great rotting cavity ... she never rang and it's still there ... and how cheap did I price that?

Flamin galahs, I just don't get it, need a decent storm.

 

[Jim1NZ]

Yea mate ya get that. Wont be long in falling over.
We looked at a old tulip tree that had 8% live wood remaining with buildings all around. Go figure