Whilst acceding that national regulations cannot be ignored/ need to be enacted. Just to reiterate that wishing that spraying aircraft will have any impact whatsoever on the spread of Dengue is fanciful to say the least. The extension of mosquito vectors that can spread Dengue etc to new territories has had nothing to do with hitching a ride via air travel. It's to do with climate change and changing patterns of insecticide use _on land_. Spraying aircraft _will_ have a measurable impact on reducing importation of e.g. fruitflies and other bugs that can readily colonize new geographic regions that are otherwise isolated (e.g. Australia), so it's not entirely irrational.

If folks are willing to do "whatever it takes" to reduce the spread of Dengue/malaria vectors (which seems to have strong support on the FT board) -- flying less will have a much bigger impact -- in the aggregate -- than spraying aircraft interiors.

tb.