Roundup is glyphosate plus a surfactant. The surfactant is use to strip the waxy coating on plant leaves so the glyphosate can act. I've read the surfactant is

Roundup is glyphosate plus a surfactant. The surfactant is use to strip the waxy coating on plant leaves so the glyphosate can act. I've read the surfactant is the bigger issue for insects.