The effort has lead to coca growers cutting down national forests — where such spraying is often against the law — to produce their illicit crops. But Mother Nature may be rebelling against drug policy as well. coca plants appear to be either evolving on their own (or with the help of coca farmers’ active selection) — or they are possibly crossing with Roundup Ready crops already on the ground — to produce a glyphosate-resistant crop known as Boliviana negra.
This doesn’t make the Bolivian government or people happy, nor the U.S. government, but:
…drug growers who do have the new strain certainly don’t want the status quo to end, because currently the U.S. government is doing their weeding for free.
What to do?
When you put together the studies referenced above, which show that spraying glyphosate is harmful to humans and the environment and that it does not hamper the production of coca or weeds, the answer to almost everyone’s problems is eliminating Monsanto.