There is a menace here, but it isn't what they are saying it is.
Monsanto has developed Roundup resistance strains of various crops, and they require farmers who purchase them to sign a contract stating they won't seed from the stock they grow (i.e., if they grow corn they won't use some of that corn to replant next year) This essentially requires farmers who buy into this to buy from Monsanto every season, instead of seeding from their stock each year as is the common practice.
There was a case in Canada a few years ago where Monsanto sued a farmer for patent infringement who was caught with Roundup resistant canola (rapeseed for you UK folks) in his fields -- it was just a portion of his crop, that he said had got there because the seeds arrived there via wind blowing them from neighboring fields or grain trucks loaded with the harvest from other fields driving by his field. Monsanto's lawyers said it didn't matter how the seed had got there, that it was his responsibility to remove their intellectual property from his field! After years of litigation going all the way to Canada's highest court, it ended up as something of a draw, the court upheld Monsanto's patent rights and ability to enforce them, even though Monsanto had no control how the wind may disperse them to other fields, but said that he didn't have to pay Monsanto licensing fees for the seeds that landed on his field. But he spent a couple hundred thousand dollars in legal fees to defend himself.
So the homeowners adjacent courses with that creeping bent grass better watch out that Monsanto doesn't sue them if it "creeps" onto their lawns someday
