It's especially bullshit because Monsanto don't produce seeds that don't reproduce. Terminator technology was developed by the United States government and shut down by Monsanto because they thought protesters would go apeshit. Turns out they were right, to the extent that shutting down the tech didn't stop people going apeshit. It's one of the most pervasive myths about GM crops.

Monsanto's seeds reproduce just fine, however if one saves the seeds from their harvest and replants than it is an IP violation. It would be like copying a CD for a friend, very possible but not legal