How Chateau Works
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Chateau contains flumioxazin, a powerful long-lasting preemergence herbicide.
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A PPO inhibitor, Chateau’s mode of action is different than many other commonly used herbicides. So it helps fight resistance, while providing long-lasting control of tough weeds.
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Chateau has some postemergence activity, but its strength is preemergence residual action.
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Chateau requires at least ¼ inch of rainfall or irrigation to activate preemergence activity.