> It does not pollinate across a fence. There is no wild corn or wild soybean or wild potatoes in the forest or meadow across the fence which the farmer's crop

> It does not pollinate across a fence. There is no wild corn or wild soybean or wild potatoes in the forest or meadow across the fence which the farmer's crop could pollinate. Also it has never happened that a potato (or any crop plant) escaped into the wild and survived there.