Obviously, if we can't collect enough, we are operating on a larger than
sustainable scale. Appropriate scale is an absolute attribute of
sustainability. If 20 people don't piss enough to treat 40 acres of lemon
grass, one wonders why they think so much lemon grass will be sustainable.
If one farmer tries to control 100 acres, we see a real limitation.
Bear in mind to factors. 1) You don't piss on the plants. You use sprayers
and probably a coating agent. This gives a lot more coverage per kidney. 2)
You don't have to spray the entire crop in one day.
I'm more concerned that spraying be suspended well in advance of harvest and
that the fresh crop be thoroughly washed.
You'll be interested to know that this was the treatment of choice for mildew
on grapes (in what is now the UK) during the 13th century.
For Mother Earth, Dan Hemenway, Yankee Permaculture Publications (since
1982), Elfin Permaculture workshops, lectures, Permaculture Design Courses,
consulting and permaculture designs (since 1981), and now permaculture
training in an email classroom. Copyright, 1996, Dan & Cynthia Hemenway.
YankeePerm@aol.com P.O. 2025, Ocala FL 3447-2025 USA.
We don't have time to rush.
In a message dated 11/6/96 11:40:09 AM, GEOFF.SEAVERS@bbsrc.ac.uk (SEAVERSG)
wrote:
<<Hi,
I was intrigued by Dan's reference to human urine as a fungicide. Presumably
this is due to it's formaldehyde content? I can envisage problems in
collecting
sufficient quantities!!
Geoff Seavers
IACR-Long Ashton Research Station
Bristol
UK>>