DDT to the rescue.
As others have posted, here and on other forums, I was one of those that remember the arrival of the bug spray truck...
In my town it was similar to a mini cement mixer, with the chute pointing upward. The sound of the sprayer announced the trucks arrival, loud but only within a block.
The truck slowly progressed down the street. My Mother came to alert and said... go upstairs and close all the windows.
More or less, the mosquitoes returned within a few days and no bicycles were harmed