I just drove across the US (down the east coast, across the south, up the Rockies) and found I had to do this only after driving across Texas.
Really weird
But I've noticed a big change in Texas in recent years. The last two years I haven't had to use pesticide in my residential vegetable garden. I've had to control for mold/fungal infections, but not for insects. And I live up against a nature preserve and try to keep most of my property as natural as possible.