Originally Posted by Dorsetboy

I have travelled to SYD several times with BA and every time about half and hour before landing the CSD comes merrily through the cabin spray ignsome sort of 'insecticide '. The last three times I have made the trip with QF,CX and EK, admittedly not into Sydney, there has been no such event. I am just interested if anyone can throw any light on what, why and who is in the right? Previously I had thought it an absolute necessity, but clearly not now for all!