It's still done: https://www.youtube.com/watch?v=ka6DZ34MAf0 https://www.youtube.com/watch?v=ka6DZ34MAf0 https://www.youtube.com/watch?v=cBIuuDPn7QU https://www

It's still done: https://www.youtube.com/watch?v=ka6DZ34MAf0 https://www.youtube.com/watch?v=ka6DZ34MAf0 https://www.youtube.com/watch?v=cBIuuDPn7QU https://www.youtube.com/watch?v=cBIuuDPn7QU https://www.youtube.com/watch?v=iBho7jDKx2g https://www.youtube.com/watch?v=iBho7jDKx2g https://www.youtube.com/watch?v=yt_uffWKjS0 https://www.youtube.com/watch?v=yt_uffWKjS0 I don't know if it's less frequent today or if cities are more discrete about it considering modern paranoia. Growing up in the 90s in Florida I remember the trucks driving by on occasion, usually around dusk. If they did it late at night I'd be asleep and would be less likely to notice, so I couldn't say with any certainty how frequently they sprayed. Also, looking at those videos, the method seems to be different and less noticeable. I remember huge, dense fogs that would envelope the whole neighborhood. In the above videos the spray disappears almost instantly.