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Matt from Chattanooga, Tn writes

Mixing Certainty Herbicide with Q4

Can you mix Certainty and Q4 plus together to clean up a bermuda lawn that has a little bit of everything in it?

Answer:

Certainty Herbicide requires a surfactant when using whereas Q4 already contains one, it would best to apply separately to avoid injury to the lawn.

Answer last updated on: 08/29/2019

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