Quote:
Originally Posted by cirillonb
with all respect to Ray who has been a major source of information for me these formative years, most of what we do for/to our orchids when it comes to "green" techniques lack any "scientific" basis as in controlled studies, etc. If it doesn't damage or kill the plant and the problem goes away or doesn't come back we are willing to make the leap of faith that says what we did was the reason. That ain't necessarily so.
I have read some potentially dangerous (to plants) things recommended here with little background except "it worked for me" or for others.
I really don't want to be controversial and will not make further comments on this thread, but these are my observations and opinion.
Nick
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Sorry, I hate to say it, but cinnamon as a fungicide is not a myth.
Cinnamon has been proven as a valid fungicide. This has been known for centuries, and has also been shown scientifically. There are many articles dealing with the subject and I dug up quite a few in a few minutes.
For example I found an article shows that cinnamon "completely inhibited conidial germination and mycelial growth of all fungi at 5.0 g/L"(on all three fungi used) Also "The effectiveness of CE on disease development was reduced when applied before inoculation". In other words, cinnamon works well as a prophylactic as well as stopping the spread of pre-existant infections.
So I have no problems using it, and I think Ray must have done a minimum of research before posting home recipes on his website.
Even if it wasn't very effective, a little cinnamon never hurts anybody, right?
The chids will smell nice!
source:
Effects of cinnamon extract, chitosan coating, hot water treatment and their combinations on crown rot disease and quality of banana fruit. 2007
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