Fumigation

There was a time, not long back when aircrew used to walk down the aisles of inbound planes to Australia spraying some sort of fumigant with the goal of keeping Australia pure. I can’t be arsed googling the subject, but can you imagine disinfecting a bunch of tourists without warning them, nor without getting their acquiescence? The mind boggles at the arrogance, not to mention the stupidity of thinking that this might achieve anything. I bet CSIRO was behind it…