[Griff]

Originally Posted by tw

Plants (ie weeds), that have no genetic modification, have become resistant to glyphosate. That was found in farms that did not rotate their weed killers in three or less years. Unfortunately, those other killers require greater care and are not as effective as glyphosate.

This concern is not just found on farms. Homeowners should also take same care using Roundup. Some glyphosate resistance has also been reported in residential venues. Same reason - which has nothing to do with genetically modified crops.

Genetically modified crops did nothing to make other plants - especially weeds - glyphosate resistant. Some reports implied these weeds were so resistant as to require physical removal.

Just keep in mind that agriculture's overuse was made possible by the genetic manipulation of Roundup Ready crops. Those crops were sprayed heavily forcing the weeds to evolve. Whether or not Monsanto encouraged misuse is an open question.