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Ty from Spokane, Wa writes,

How long after application is Tenacity rainfast?

Applied 4oz/acre to 30 day old seedlings and got 1.5" of rain a few hours later. Rainfall was quick enough to cause flooding, 1.5" in about 2 hours. Will the Tenacity application be effective?


 Tenacity Herbicide will be rainfast 4 hours after it has been applied or after it has dried. 

Answer last updated on: 06/02/2015

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