You picked it in one, my good friend, Insecticide mixed with Diesal and then under pressure from the pump, it is modulated by a Needle valve until the required smoke/fog consistency is achieved.
I'm not going to name the insecticide as disclosing its use in the above manner would leave me in deep doo-doo with certain authorities. Suffice to say, what I use doesn't kill the mozzies on the spot, it just messes with their reproductive cycle and when used over a period of a week, ( Mozzies only live for 3 days at the most) there is no new larvae laid to bring about the next swarm.
Sometimes I think I'm going to have the Fire Brigade screaming onto my 2+ acres after I have laid down a fog screen that would have done the entire Battle Of Midway fleet proud.
