re: Anyone putting down prodiamine this weekend?

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can I apply Prodiamine, Weed Free Zone and Atrazine (+ surfactant) mixed together or do they need to applied separately? I have St. Augustine and I'm in north Lafayette. Forecast calls for mid to upper 80s through next Wednesday.

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Honestly don’t know if you can mix Prodiamine with the WFZ+Atrazine mixture, hopefully ronk can answer that one for you, but you can mix Prodiamine with Celsius if you have it.

The Prodiamine does need to be watered in to be active and being that every day you delay applying it and watering it the more winter weed seeds are likely to germinate so I’d try to get down quickly - even if you have to do separate sprays with the pre-emergent and post- emergent. You are on the border line with temperature restriction on the WFZ - I’d personally wait until afternoon temps are mid-70s/low 80s to use it with the atrazine. But you can use Celsius now, or MSM Turf, with no temperature restrictions. MSM Turf is also a good post-emergent herbicide, $25 for a 2 oz bottle (can also be mixed with Prodiamine) - might be easier to find locally for you than Celsius - assuming you don’t currently have either in hand.