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Aaron from Buffalo, Ny writes

Can I tank mix Tenacity and ferrous sulfate?

I have bent grass and moss throughout a lot my yard. I was wondering if I can tank mix tenacity and ferrous sulfate together to hit both at once in early spring before my turf grass starts to take off. I was planning on spraying both mine and my neighbors grass so it will be a big application, which is why I wanted to mix the two rather than do two separate applications.



There should be no issues applying Tenacity around the same time as a feritlizer as long the label on the fertilizer does not state that it cannot be used with herbicides.  We would not recommend tank mixing them though unless your experience has shown it would not cause an issue as the label does not mention mixing with fertilizers.

Answer last updated on: 03/20/2020

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