Is it too late to put pre-emergent herbicide down?

Do you have anything currently alive? What are you trying to keep from emerging?

Yeah, I know. Probably going to nuke my yard next week while I don't have much going on at work... Always put it on the back burner when I start to get busy.

I sprayed 2-4-D today on a few pastures. Supposed to be above 65F before you spray but I said frick it. Hope I didn’t waste my time.

That said, it’s gonna be cold next week. Mind the recommended temp application guidelines before you put anything out.

Let me know if it does.

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What’s the deal with 65°? Is that for protecting grass or making sure the 2-4,D is working?

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I’m guessing their recommendation is twofold.

One, the colder the temps, the longer the reaction time. 2-4,D usually reacts pretty quickly but cold temps could take a bit longer. During winter months, I’d just suggest that you spray with a 48 hr window of no rain or heavy fog.

Two, the surface inversion has usually lifted out of the way by the time the temps hit 65 degrees (not always but usually). What you doesn’t want to do is spray and have the chemical drift floating around in a suspension and land on off target areas.
If you spray with warmer than 65 degrees, there’s a much higher likelihood that the smaller drift particles will safely land in the target area.

Unless you grossly over apply, 2,4-D won’t impact your grasses at this point in the year.

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I have a clover problem right now.

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Thats been my main issue for years. It keeps coming back in the exact same spots every year even though I hit it a few times a year with 2-4-d and a pre emergent in spring. Can't seem to make it go away forever.