Do you know what kind of grass you are suppose to have? Be patient with the Celsius you applied as it may take a week or two for you to see results from it. I personally don't see a whole lot of good grass in the pictures so you may need to spray it all out and put sod down. How many sq/ft of lawn do you have?

BTW, Weed n Feed is not a good product to use as it's expensive and doesn't really kill that many weeds.

 

It’s suppose to St Augustine grass. It’s gonna be a good portion of my yard. Some areas have grass with weeds and then some areas look like the pictures.
yeah I won’t use weed and feed again.
so I am assuming like you said, spray it out. Put down sod. Start fresh

what do I use to spray out the bad stuff?

I know I should level out the ground before applying and then apply sod. Water water water.

What should my care regiment after I lay sod down? Just looking for all the guidance so I don’t screw this up.

 

It’s suppose to St Augustine grass. It’s gonna be a good portion of my yard. Some areas have grass with weeds and then some areas look like the pictures.
yeah I won’t use weed and feed again.
so I am assuming like you said, spray it out. Put down sod. Start fresh

what do I use to spray out the bad stuff?

I know I should level out the ground before applying and then apply sod. Water water water.

What should my care regiment after I lay sod down? Just looking for all the guidance so I don’t screw this up.

"what do I use to spray out the bad stuff??
Try Tractor Supply's Compare-N-Save. Better that RoundUp and less expensive and it works.

 

How much st Augustine do you have?

 

I would have to measure. I live on a 1/3 acre lot. There is a pool and a lot of grass.

 

Welcome to the forum, @ofl0926! If you do a search at the top of the page for "SA", you will get a bunch of information regarding others with Saint Augustine. I also recommend checking out the Lawn Journals for those who have SA. GCoco Lawn Journal is the first one that comes to mind. You have the full pallet of weeds, Florida Pusley, garden spurge, globe sedges, yellow nutsedge, and clover. If it's not that big of any area and you have the budget, kill it all, prep the area, and lay some sod down. Keep asking questions as you go and we will do our best to help.

 

I used google earth to measure the different sections of my lawn.

 

The first area is roughly 873 sqft
The second area is roughly 781 sqft

 

If you are re applying sod, I would hold off on the Pre Emergent. You should read the label and it will tell you how soon you can apply pre emergent to new sod.

But yes you best choice of action in S. Florida is just to kill everything off and then apply new sod. St. Augustine sod is very cheap and available in S. Florida. However, you may want to check out some of the more hardy newer varieties.

 

I’ll take a look at the different sods. Thank you

When it comes to fertilizer brands, any recommendations?

 

Some of those pictures are virginia buttonweed. I do not find celsius controls it very well. I think you will need a fahrenheit / certainty cocktail to kill off the VBW and the sedges. Honestly, i find myself with the size of your yard, kill all and sod. But the VBW and sedges will return if you just do roundup and go.

 

I’m leaning heavily towards kill it all and applying new sod.
How long do I have to wait before everything dies and applying new sod?

 

It's more about the speed of the kill and having some residual kill. Trying not to nerd out, but at the same time answer your question:

certainty (or sertay as generic) will kill your sedges, but it is slow. I find this is preferred, because it will actually kill the nut, which can be surprisingly deep in the soil.
MSM - the best chemical for the VBW. And it will last a few weeks after the application as a pre-emergent. VBW, every little speck of it can germinate into a new plant. MSM is the one chemical I have found that prevents this due to remaining present for a few weeks.
Sulfentrazone - will also hit the sedges pretty hard, but will wreck st augustine. Not important if you're rebooting, so it would be a good added measure.

You could mix all of them in one spray application safely.

If you're doing a kill-all, a bottle of fahrenheit will run you $40-$50 and will last you a long time. Application rate is 3 to 6 oz PER ACRE. You will want a diet scale that can read in grams to properly measure for a yard your size. Apply at the high rate. certainty, you get a 1.25oz bottle for $130 or so, which is good for an acre. They also sell these little packets cheaper, which will be a better dosing option for your yard. If you're doing a full kill, also mix in some sulfentrazone.

Give it about three weeks or so before you lay more sod. You might hit the yard once or twice during this time with glyphosate, which dissipates almost as soon as it hits dirt. You can apply glyph two days before you sod. You may want to run a tiller to break up the soil compaction and make it easier for roots to anchor. I would, but it's your call.

 

So based on all this info
Kill off everything with Fahrenheit

wait a few weeks

clean everything up

till soil

apply sod.

what else am I missing?

 

the fahrenhjeit won't touch the sedges. you['ll still need either sulfentrazone or certainty int he cocktail.

 

ok so the combination of both will be needed. Got it. Did I miss anything else?
I’m going to order everything to do

 

If you’re just going to kill everything and start fresh, you could just use 41% glyphosate. It total kill is what you’re after, this is going to be most cost effective. Celsius and certainty are great selective herbicides. But also expensive.

 

I second this approach. You could also add in some Ammonium Sulfate to help speed up the kill. Spray, wait 2 weeks, then spray anything that is green and then you can prep the ground for sod.

I think the bottle says to wait 3 days after application before laying sod but you can pretty much do it the next day as Glyphosate is a contact herbicide.

 

^^^^^^^ This.