Weed ID and Control

My guess is Virginia Buttonweed.

Thanks for this. Being that it is mature and temps are over 85 for at least the next month or so, it sounds like I am not going to have much effect on it this year.

Do I spot treat once below 85 or spray the whole lawn? How often should I apply herbicide?

Welcome to the Home & Garden Board!
Congrats on having the single most vicious grass killing weed in the Southern United States.
Please take Craw’s advice or you won’t have any lawn left in two years.

VBW, white flowers dead giveaway

now, when you cut, those flowers have seeds......

I've tanked mixed it at a 2G rate. I will say that your backpack rate will be more effective due to higher concentrations of herbicide.

quote:

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Have you ever tank mixed MSM and Celsius?

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I did this a week ago in a 4-gallon backpack sprayer with no issues.

Nuke it then re-sod with Zoysia grass. I used to have large patches of VBW and Doveweed as well as other various weeds. A few winters ago I went to my local sod company to get some advise and they sold me some pre emergent. While there I noticed some remnant pieces of Zoysia in the parking lot that were left over from a job they had recently done. They were not in the best condition so I asked for them and they gave them to me. There were about twenty five pieces. Got home and prepared the ground where the weeds were the worst from the summer and laid down the Zoysia. It was like January or early February so watering efforts were not as critical as in the hot months but still neccessary. Anyway, its been about five years and the Zoysia has spread to maybe 60% of my yard. It is so thick that weeds cannot and do not grow. Keep in mind that this is in full sun all day. I don't know if the results would have been the same if there would have been shade involved. Anyway, I'm a big fan and truly amazed that weeds cannot penetrate this stuff! Also, as many of you know, it makes for a beautiful turf and builds up this really nice tall wall of grass along the edges. I will try and post pics if I can figure out how to.

One of the better things about Zoysia, and Bermuda for the matter, is that when you do get weeds the type of herbicides you can use on them almost doubles. They also hold up well to the more stronger herbicides out there. NOT all herbicides but most.

It’ll die in the winter, but pulling it by hand is a great option.

This is what no one wants to hear:
Possibly the best general weed prevention is to cut your grass frequently at the desired height starting in March, if not February.
Not. Too. Short!

I am going to get the MSM turf today to apply of the VBW. Will the MSM help with this weed as well?