If anyone really wants the full paper I can give them my address and they can send me a SASE and I'll print out a copy for them, there was also a letter explaining that there were already 16 known weed species that show resistance to 2,4-D (compared to 21 resistant to glyphosate) and another 12 that are resistant to other synthetic auxins.
Assuming that you folks don't know much about herbicides 2,4-d is a synthetic auxin (plant hormone responsible for internode lengthening in broadleaved plants) that was developed by the Brits in WWII with the intent of making broadleaved plants grow faster and yield more, it turned out it killed them so they started using it as an herbicide to kill the broad leaved plants growing in cereal grain fields. It's the active ingredient in a lot of
lawn care "gick" because it will kill all the clover and
dandelions out of the neatly manicures 3/4th inch tall suburban lawns with out affecting the grass at all.
Figured you guys would want to know, figured the tone of this post would meet with Paul's approval.