Oxalis control (sour grass)

["Evan Davies" <evangardener@hotmail.com>]

In an area we have planted oz natives, oxalis is coming up everywhere that 
has been disturbed. I was told that a dose of liquid lime would do the 
trick. How do I prepare this in an organic way, and how does it work. I'm 
sure all you 'Permaculture Scientists' have some kind of responce.
Evan Davies
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