Leaf Miners

Hi All

Can anyone help with an organic solution to leaf miners.  I have in the past used Deris Dust but apparently this has been withdrawn, not, I am happy to say because there was any problem with it but (according to our garden centre) because the company couldn't afford to get it passed EU regulations.  Anyway this worked a treat but the only other stuff I can find now is either contact spray or systemic spray.  I wasn't overly keen using deris but these pests are a particular problem here.  I do remove the leaves as soon as I see any signs but still need something else.  If anyone has any solutions (no pun intended) can they let me know please

Thanks