Gramoxone is not systemic like gly. Gramoxone is strictly contact kill. Use a lot of water. Gramoxone won’t “kill” like gly it burns off green plant tissue. That’s why I stated on annuals it kills them. On pernennials they gonna green back up unless it’s right at the end of its life cycle. Example. Spray Italian ryegrass with paraquat in early winter you’ll piss it off. Spray it in April and you’ll smoke it