Comment by zbjornson

Rather, "there is no evidence to show that using insecticide to kill mosquitoes inside aircraft cabins is effective in preventing introduction and spread of mosquito-borne diseases."

https://www.epa.gov/mosquitocontrol/aircraft-disinsection

Not sure where the idea came from that spraying the cabin aisle would penetrate the luggage bins, cargo hold, under the seats, or really anywhere.