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Sinan from Davenport, Ia writes

When can you reapply Tenacity as a pre-emergent?

Answer:

As a pre-emergent, Tenacity will only last about 30 days, so you may re-apply after 30 days if necessary making sure you do not exceed the max application rate per year. However, the product label states “If used for preemergence in established turf, tank mixtures with preemergence herbicides such as Barricade® 65WG Herbicide are recommended for longer residual and broad spectrum weed control.”

Answer last updated on: 02/14/2020

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