New updated Australian Standard

treeseer · 7th October 2008, 06:10 PM

Quote:

Originally Posted by ArborealTerror

I would have to agree that a pathogen is most likely. But given the limited area of infection it could just be a herbicide, soil condition, pollution in runoff etc. Naturally because of the spike injuries they are the primary suspect. I would suggest that if trees which have been spiked outside the complex are not infected then the infection is carried by the spikes themselves.

I therefore would say that it is not the spikes themselves that killed the palms but the infection they were carrying and this could (probably) be avoided by sterilising the spikes with bleach/water before use.

This is an extraordinary stretch.

Y'see, cigarette smoking does not cause lung cancer; it might be all that other junk in the air, and bad genes, and astrological influences, and...if I only smoke low-tar ones then I'll bbe right, uh huh!

ArborealTerror · 8th October 2008, 12:13 AM

Quote:

Originally Posted by treeseer

This is an extraordinary stretch.

Y'see, cigarette smoking does not cause lung cancer; it might be all that other junk in the air, and bad genes, and astrological influences, and...if I only smoke low-tar ones then I'll bbe right, uh huh!

No my point is that we spike thousands of palms every year that have no ill effects. If you get a sudden 100% fatality rate in a small isolated group of palms that have been spiked then either the spikes themselves transmitted the infection or there is another environmental factor at work. (Or Ekka did them after sterilising his spikes with roundup

)

by the by, I haven't tried smoking palms....yet! Given that their flesh converts to Nitric Acid upon oxidation I will probably give it a miss.

ulp · 9th July 2010, 01:44 PM

Hope everyone is gainfully employed, does anyone out there know how to work out the new SRZ formula. I have tried to, but with little luck.

The Tree World on line calculator is great but the AS 4970-2009 SRZ GRAPH
does not correspond with the online calculator. Could someone explain
the formula to me in a simplistic form step by step as I'm far from being a maths genius. Can anyone explain the 0.42 and how this is used in the calculation. This is my final year of the course at Ryde in the Arb Diploma.
Have used the Treeworld calculator, however, is the SRZ based on the
AS 4970-2009 formula or Matthecks formula?

I would appreciate any help.

Regards ulp

glennak · 10th July 2010, 03:22 AM

Quote:

Originally Posted by ulp

Hope everyone is gainfully employed, does anyone out there know how to work out the new SRZ formula. I have tried to, but with little luck.

The Tree World on line calculator is great but the AS 4970-2009 SRZ GRAPH
does not correspond with the online calculator. Could someone explain
the formula to me in a simplistic form step by step as I'm far from being a maths genius. Can anyone explain the 0.42 and how this is used in the calculation. This is my final year of the course at Ryde in the Arb Diploma.
Have used the Treeworld calculator, however, is the SRZ based on the
AS 4970-2009 formula or Matthecks formula?

I would appreciate any help.

Regards ulp

lots on this here. but you should have started a new thread. Do a search.
The graph is wrong the formula is trying to follow Mattecks graph I think, he does not have a formula. I have a formula posted here that follows his graph perfectly.
The 4.2 is to the power of like 3 to the power of 2 is 9 3x3=9
3 to power of 3 is 27. 3 to the power of 4.2 is 100.904
You need to use a scientific calculator to work it or just use the thingy Eric has made here.

glennak · 10th July 2010, 03:25 AM

Back on topic doesn't anyone here use loops of rope locked around the trunk to climb palms? Slower but safer than spurs and no damage to trees.

ulp · 10th July 2010, 03:17 PM

Thanks Glennak, for the info, I have compared the calcs with
the on line calculator for SRZ and they are the same.

So thankyou to Tree World for the online calculator.

Regards

9th July 2010, 01:44 PM	#33
ulp I'm new here so be nice Join Date: Jun 2010 Location: 20 Koorana Rd, Picton, NSW, Australia 2571 Posts: 3	Re: New updated Australian Standard Hope everyone is gainfully employed, does anyone out there know how to work out the new SRZ formula. I have tried to, but with little luck. The Tree World on line calculator is great but the AS 4970-2009 SRZ GRAPH does not correspond with the online calculator. Could someone explain the formula to me in a simplistic form step by step as I'm far from being a maths genius. Can anyone explain the 0.42 and how this is used in the calculation. This is my final year of the course at Ryde in the Arb Diploma. Have used the Treeworld calculator, however, is the SRZ based on the AS 4970-2009 formula or Matthecks formula? I would appreciate any help. Regards ulp

10th July 2010, 03:25 AM	#35
glennak Semi-mature vigorous tree Join Date: Mar 2010 Location: Melbourne Posts: 179	Re: New updated Australian Standard Back on topic doesn't anyone here use loops of rope locked around the trunk to climb palms? Slower but safer than spurs and no damage to trees.

10th July 2010, 03:17 PM	#36
ulp I'm new here so be nice Join Date: Jun 2010 Location: 20 Koorana Rd, Picton, NSW, Australia 2571 Posts: 3	Re: New updated Australian Standard Thanks Glennak, for the info, I have compared the calcs with the on line calculator for SRZ and they are the same. So thankyou to Tree World for the online calculator. Regards

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