Lots of detail of Australia/New Zealand regs, procedures, various methods of compliance, etc, here:
http://www.agriculture.gov.au/SiteCo...sinsection.pdf
..and if you get it wrong:
.”Failure to comply with the department or MPI disinsection requirements will result in the aircraft being sprayed on-arrival prior to passenger disembarkation and cargo being unloaded”.
Embarassing when that happens (wasn’t me but I know somebody who has been in that situation - I gather that when the doors were opened in SYD and the waiting officials found out what disinsection had been forgotten they told the crew to *** get on with it, slammed the doors shut, and waited some considerable time before allowing the doors to be opened again - the passengers, some of whom were at the end of a two sector 24'ish hour journey were less than impressed)...