Best as I can tell, most of the farms are relatively small. The target one fellow and bankrupt him as a warning to others in the area. They all cave in quickly and buy the GM seeds............

A big agribusiness would have the wherewithal to defend themselves, something the average little guy cannot do against Monsanto. Monsanto even has the temerity to send them a letter threatening to drag them out for years in court if they don't pay the royalty.

When a very large corporation can dictate the behavior of smaller corporations, the law notwithstanding, it's time for some anti-trust intervention.