Dusters go as fast as they dare, because they often do several fields in one day, and time is money.
As civilian flying goes, it definitely takes good skills... and more importantly, good judgement. Reading the field before you begin, thinking ahead, is what keeps them alive... sometimes they dust at night (no, really) to take advantage of lighter winds... they often need to remember what the field looks like during the day to do this safely.
But the military has them beat... they might not go quite as low, but often hug very uneven terrain at very high speeds, using artificial vision in darkness and/or bad weather... much harder.
everyone around here cropdusts at night, but alot of them use helicopters
Well, that's really dangerous... everybody knows those things don't actually fly.
