Crt Jakhel wrote: If you share a high ground water table with your 'cides-heavy neighbor then that's likely a problem. Apart from that, having a good shelter belt of shrubs and trees should help a lot. Maybe try hazel and willow?
Fortunately the groundwater table is quite deep - 5 meters or so I'm not concerned about it too much.
The only issue is wind drift from spraying process, that's where the willows should help a bit. They are coming back thicker after cutting down the shrubs along property line, so next year it should be nice and thick.
I've eaten so much conventionally farmed food in my life, that in the long run it probably does not make a difference.
As a sidenote, the most heavy-handed, reckless user of roundup I know is the traditional 'grandma' from the country with a small self-sufficient homestead.
She's 80 now and has grown most of her food for as long as I remember.
I remember from my childhood how she had these tiny, very hard stinging nettles and some weird algae-like growth around her property. Turns out that areas that are extremely oversprayed can't grow anything else!