Roundup (glyphosate) is a herbicide, not an insecticide. And, it only kills certain grasses and weeds, not all of them. Certainly not grasshoppers or people , ads by by unethical tv lawyers notwithstanding.

. When the weeds and grasses ceased to infest the corn, the grasshoppers simply went elsewhere. It's a tough thing to feed the world and have perfect gamebird habitat, at the same time.

May God bless America and those who defend her.