You used to do spot sprayings with glyphosate... because it would kill any plant. Now that we have Glyphosate resistant GMO crops we just spray the entire field

You used to do spot sprayings with glyphosate... because it would kill any plant. Now that we have Glyphosate resistant GMO crops we just spray the entire field. Normal conditions in nature don't favor a heavily glyphosate resistant plant, multiple sprays of glyphosate in a season does.