I guess as a lay person, I meant both. Makes sense, so does that effectively reduce the volume of pesticides/herbicides, or does it just allow you to lay it on with less precision?
In the case of roundup ready crops, it sounds like it's both more effective as an herbicide and less toxic. The Wikipedia page didn't say whether that was toxicity towards humans. So in that sense roundup ready crops seem to be net better for the consumer anyway.
Jury seems to be still out on whether roundup is actually harmful, leaning on the no side at least according to the Wikipedia article on Glyphosate.