What came first, AFAIK, was RoundUp. It seemed like a great benign, even touted as bio-degradable or bio-neutral product. Even a green one, in a way, and here's why. The farmer did not have to use products that were seemingly much worse, herbicides that were more objectionable. Plus, if cultivation trips across the fields could be reduced, by no-till, limited till methods, fewer emissions from the machinery and less fuel was used. Made sense both from an ecological and economic perspective. Thus, corn and soybeans which were modified to survive Round Up application were seen as an agricultural step forward.
Along with the technology of gene modification came pest resistant varieties which gave hopes to using less pesticides. Also something of a green motivation and certainly economically beneficial to the farmer, always a powerful motivator.
If the farmer sees the potential to make more money on such "advancements" they will employ them. If the pest resistance fails to work in the out years, or weeds mutate to resist Round Up, the cycle will begin again.
Along with the technology of gene modification came pest resistant varieties which gave hopes to using less pesticides. Also something of a green motivation and certainly economically beneficial to the farmer, always a powerful motivator.
If the farmer sees the potential to make more money on such "advancements" they will employ them. If the pest resistance fails to work in the out years, or weeds mutate to resist Round Up, the cycle will begin again.