Originally Posted by
Sl8r
^^^
Sharptonn, Atrazine is your friend and one of the primary herbicides to control broadleaf weeds in St.Augustine.
It was the active weed killer in weed & feeds for St Augustine for the past few decades. Over the years there have been a few changes in weed and feeds, (government at work to protect us from ourselves) and their not as effective as they once were.
Back to Atrazine:
It’s a wonderful product due to its both pre, and post emergence capabilities. Kills what’s there, and stops seeds from germinating for a little while.
I think it can still be found in liquid form (home owners variety), and is reasonably inexpensive. Makes it great for spot spraying areas.
It will clean up that Wandering Jew looking weed in your post on the first page of this thread, and also clover without too much of a problem.
Early Spring, late fall, and winter are the safest times of the year to apply. You want to use it before the mean temperature goes above the low to med 80s. I’ve pushed the envelope on the temp thing, but dilution, ratio, and sunlight exposure all play into the formula. In other words, in most parts of Texas, you want to get it done sooner than later, especially considering the time of year. For some parts of Texas it may be to late, but not if it were my lawn.
It does not distinguish between Broadleaf weeds, Broadleaf trees, or broadleaf bushes, it has detrimental effects on all of them. So keep it away from anything you like. It’s an equal opportunity killer.
JMHO
Good luck with the Lawn & Gardens!