So you think the pesticides just float in the air and only hit the lemons? Now that would be a nice trick huh ;+D Maybe they have people with little squirt bottles squirting each lemon individualy. Yeah dats the ticket...........;+D
All kidding aside. I'm sure you have seen movies of the crop dusters so plain common sense will tell you that most of the pesticides will hit the ground and be absorbed by the soil and then absorbed by the tree roots. Then on top of that you got all the toxic chemical fertilizers.