Good tip. Our oats are sourced from an organic Amish grower, hopefully it's not an issue for us.
Discussion
I'd be shocked if it was a problem with an Amish grower. It is great when you can find a good source. It is so hard to find clean food these days.
Depends on the Amish. I grew up just outside of Lancaster County in PA and I definitely saw horse-drawn sprayers dousing soybean fields with what smelled like round-up and later only the beans weren't dead.