| Haleiwa - 1/23/2026 18:40 As much atrazine as is legal. If it's a fenceline, you don't really care about the grass. I'm assuming you spray with a hand wand or single nozzle right under the fence.
A good stand of perennial grass in a fence line is a great tool to keep the weeds from taking over. You do not want to kill the grass.
That said, its pretty hard to kill an established stand of perennial grass without spraying RUP on it or multiple applications of Liberty.
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Residual Fenceline Herbicide
