These pics are of them spraying one of our fields around our hog barns a few days ago -
A good view of the spray bar!
A view of him coming into to start spraying, he is still coming lower, he is not quite over our field yet!
I was in the truck getting ready to leave when he came in to spray the rows closest to the drive, I just grabbed the camera and snapped - NO ZOOM - yes, the pilot waved and I saw his face clearly!
Aerial application is used this time of year because the corn is so tall. We are having fungicide put on but you can also have insecticide applied. It is becoming a lot more common to spray the corn during the later stages of growth - it is proving to really help plant health and therefore yield.