Hi Ross, There is another company in Australia (Adelaide) marketing a steam weeder especially for under vines called 'Vaporjet'. They also have photos of a modified version for [vegetables?] asparagus that a grower made himself. The company's name is 'travohtec', PO Box 2162, Port Adelaide Business Centre, SA 5015; ph 08-8347 7499; fax 08-8347 7599; email [EMAIL PROTECTED]; contact person: Chris Travers 0407 976 033.
Christiane