Not enough Aussies want to work on farms

There is a shortage of skilled help on Australian farms, but getting the Department of Immigration to understand the skill-set sought by farm owners is proving difficult. The skilled occupations list doesn't seem to be cutting it.
A recent article in The Australian newspaper discusses an onion and carrot grower, Yvonne Smith who sponsored two South Africans to Australia under the Regional Sponsored Migration Scheme (RSMS). Mrs Smith is still facing issues finding local staff as there are simply not enough Australians that would like to work on farms.
Farmer, Mrs Smith is concerned that the Skilled Migration List does not address the skills shortage on farms. Perhaps we need to go back to the days where there were accessible and easy waivers for occupations in groups lower than 4 on the then ASCO (now ANZSCO) for post-codes in regional and / or rural Australia.
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