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Pros & cons of using camphor laurel as mulch
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<John Henry>
posted
I'm interested in finding true value of tree mulch use on gardens and if any scientific reserch been done on subject. seam to have conflicting information and results. I have amature experimental gardens on the go (not very scientific) but providing interesting results. also interested in camphor laurel as:1/ growth inhibitor, 2/ near waterways. has anyone done the hard yards and discovered truth and light,or are we just nodding with eyes closed for the common good.
 
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<Mark Hartley>
posted
Reply to post by John Henry, on January 30, 2000 at 06:15:34:

John,

Adam Tom in Qld did Graduate Diploma work on allelopathy of
Camphor. If I recall what I read it basically concluded that
it was the result of highly volatile products. In personal
discussions with Adam he has clearly stated that he sees no
problem with its use as a mulch (which we have done and have
seen no adverse affects).

As to leachates, this question was recently raised here in Sydney
by FATS. Again there is no supporting evidence that Camphor mulch
is as significant as the live tree in producing these leachates.

The same concerns were raised over Eucalyptus globulus in CA and
no deterious affect and only beneficial affects were observed by
Dr Downer who did the work.

Hope this helps

Mark
 
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<John Henry>
posted
Reply to post by mark Hartley, on January 30, 2000 at 06:15:34:

Dear Mark,
Your blood is worth bottling.
I am inclined to believe that most organic
matter when not carring viable seed or active
bud tissue is probably a positive soil enhansor.
Some must be better than others. Does any one
know if scientific studies have been carried out
in this field. What research material is
available and where do I look.
John
 
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<Russ Carlson>
posted
Reply to post by john henry, on February 05, 2000 at 23:27:10:

I know Penn State did some research a few years back on different types of organic mulch. I don't have the specific reference, but it may be availableon their web site, under Cooperative Extension: www.cas.psu.edu
 
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<Mark Hartley>
posted
Reply to post by Russ Carlson, on February 10, 2000 at 07:13:57:

The guys at UC have done a fair bit as well. I believ
Dr Downer and Ed Perry there are 2 that have done some work
and I recal carbon content as important.

Mark
 
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<Sally Ann>
posted
Reply to post by Mark Hartley, on February 11, 2000 at 00:33:39:

Has it been OK'd as a top of ground mulch??
 
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