[Gvdvn]

Originally Posted by collie1228

I have a small yard in my courtyard villa that has St. Augustine grass (sometimes called crabgrass by others). Last year I started getting a weed problem, so in the off season, I pulled every weed I could find. This year the lawn came up green and lush and I thought I had beat the Florida weeds for once. No such luck. Now I have weeds spread all over the lawn, some of which attach their seeds to our dog every time she goes out (several times a day). In the early summer I bought Weed B Gone for St. Augustine grass and applied it as directed. No obvious change. I applied it again last month. No obvious change. The weeds are thriving. I’m about to use Spectricide Lawn and Weed Killer which will kill everything, and I can lay sod on the dead areas in the spring. But before I take that drastic action, does anyone know of a product that actually works? I think plain water would work as good as Weed B Gone.

Most it with water then sprinkle baking soda over it. A kitchen sifter works well for this. Sounds crazy but kills weeds. May yellow grass but not kill it. .

[Miboater]

Originally Posted by mikreb

Since the pre-emergent didn't work sounds like your weeds are perennial. For St Augustine Provista use glyphosate 41% to kill the weeds. Tractor Supply and Rural King are the only places around here that sell glyphosate. If your lawn is not actively growing then mix the glyphosate at 50% or wait until spring to apply.

You can also buy Hi-Yield Killzall which is 41% glyphosate. They sell that at all the home improvement stores and Ace and also Amazon.

I was told that I have Floratam St Augustine by the original installer but all my neighbors say they have ProVista. I bought some Killzall and tried it on a test area in my backyard and it worked great. It killed crabgrass, Bermuda grass and torpedo grass but didn't harm the St Augustine so I must have ProVista.

[Miboater]

The Lawn Care Nut utube channel does recommend Roundup for Southern Lawns and Image for Southern Lawns for winter weeds in Florida. They have the same herbicides but with different application rates.

[mraines]

Originally Posted by collie1228

Thanks, I do mow my own lawn. I’ve always mulched it but this year I’ve used the bag to minimize seed dispersal.

I have my lawn treated. My neighbors on either side of me do not. They have weeds that find their way onto my lawn. How would you deal with that?

[jimmy o]

Originally Posted by collie1228

I have a small yard in my courtyard villa that has St. Augustine grass (sometimes called crabgrass by others). Last year I started getting a weed problem, so in the off season, I pulled every weed I could find. This year the lawn came up green and lush and I thought I had beat the Florida weeds for once. No such luck. Now I have weeds spread all over the lawn, some of which attach their seeds to our dog every time she goes out (several times a day). In the early summer I bought Weed B Gone for St. Augustine grass and applied it as directed. No obvious change. I applied it again last month. No obvious change. The weeds are thriving. I’m about to use Spectricide Lawn and Weed Killer which will kill everything, and I can lay sod on the dead areas in the spring. But before I take that drastic action, does anyone know of a product that actually works? I think plain water would work as good as Weed B Gone.

Are they round shiny and flat about the size of a silver dollar? If so that’s dollar weed and special weed killer needs to be used.

[lpkruege1]

Originally Posted by collie1228

I have a small yard in my courtyard villa that has St. Augustine grass (sometimes called crabgrass by others). Last year I started getting a weed problem, so in the off season, I pulled every weed I could find. This year the lawn came up green and lush and I thought I had beat the Florida weeds for once. No such luck. Now I have weeds spread all over the lawn, some of which attach their seeds to our dog every time she goes out (several times a day). In the early summer I bought Weed B Gone for St. Augustine grass and applied it as directed. No obvious change. I applied it again last month. No obvious change. The weeds are thriving. I’m about to use Spectricide Lawn and Weed Killer which will kill everything, and I can lay sod on the dead areas in the spring. But before I take that drastic action, does anyone know of a product that actually works? I think plain water would work as good as Weed B Gone.

image southern lawn weed killer. 6-8 oz per gallon. Then Scotts for southern lawns with pre-emergence. The bad news, I'm not sure it's recommended this time of the year.

[Michigan Farmer]

Well be careful. If you live south of 44 most but not all St. Augustine is Provista variety which is glysolphate tolerant which was the active ingredient in the old roundup and will kill anything but the Provista. Always mix it with a surfactant for better results. Atrazine is also very good for broadleaf weeds in any type of grass, post and pre emergence.

[MikeN]

Roundup for lawns is very effective

[Lee55]

Originally Posted by collie1228

I have a small yard in my courtyard villa that has St. Augustine grass (sometimes called crabgrass by others). Last year I started getting a weed problem, so in the off season, I pulled every weed I could find. This year the lawn came up green and lush and I thought I had beat the Florida weeds for once. No such luck. Now I have weeds spread all over the lawn, some of which attach their seeds to our dog every time she goes out (several times a day). In the early summer I bought Weed B Gone for St. Augustine grass and applied it as directed. No obvious change. I applied it again last month. No obvious change. The weeds are thriving. I’m about to use Spectricide Lawn and Weed Killer which will kill everything, and I can lay sod on the dead areas in the spring. But before I take that drastic action, does anyone know of a product that actually works? I think plain water would work as good as Weed B Gone.

How is the Spectricide or any other chemical going to work
out for your dog ?

[Wondering]

Originally Posted by collie1228

I have a small yard in my courtyard villa that has St. Augustine grass (sometimes called crabgrass by others). Last year I started getting a weed problem, so in the off season, I pulled every weed I could find. This year the lawn came up green and lush and I thought I had beat the Florida weeds for once. No such luck. Now I have weeds spread all over the lawn, some of which attach their seeds to our dog every time she goes out (several times a day). In the early summer I bought Weed B Gone for St. Augustine grass and applied it as directed. No obvious change. I applied it again last month. No obvious change. The weeds are thriving. I’m about to use Spectricide Lawn and Weed Killer which will kill everything, and I can lay sod on the dead areas in the spring. But before I take that drastic action, does anyone know of a product that actually works? I think plain water would work as good as Weed B Gone.

Get rid of the St. Augustine and replace with Zoysia. St. Augustine is a weed!

[mrf6969]

https://i5.walmartimages.com/asr/01c...c3fedd26d.jpeg

This stuff actually works

[Sgt Ed]

Originally Posted by bobeaston

Pay attention to what the original quoted post said "Roundup for Southern Lawns." It is a variation specifically meant for weed killing, and does not harm St. Augustine grass.

However, Atrazine is a much better choice, and is also safe for St. Augustine grass.

"Roundup For Southern Lawns" one of the all time great love stories.

[bshuler]

I have a new home in the Village of Shady Brook. The landscaper hired by TV told me on the phone I had Floratam St Augustine grass and to NOT put Roundup on the lawn. My new lawn service told me the same thing.

[Ladays1978@gmail.com]

Originally Posted by collie1228

I have a small yard in my courtyard villa that has St. Augustine grass (sometimes called crabgrass by others). Last year I started getting a weed problem, so in the off season, I pulled every weed I could find. This year the lawn came up green and lush and I thought I had beat the Florida weeds for once. No such luck. Now I have weeds spread all over the lawn, some of which attach their seeds to our dog every time she goes out (several times a day). In the early summer I bought Weed B Gone for St. Augustine grass and applied it as directed. No obvious change. I applied it again last month. No obvious change. The weeds are thriving. I’m about to use Spectricide Lawn and Weed Killer which will kill everything, and I can lay sod on the dead areas in the spring. But before I take that drastic action, does anyone know of a product that actually works? I think plain water would work as good as Weed B Gone.

I use a produce called Q4. Mix it as directed and follow the directions about mowing and your weeds will be gone. It won't be over night but it works. It's not inexpensive but great stuff.

[nn0wheremann]

Originally Posted by collie1228

I have a small yard in my courtyard villa that has St. Augustine grass (sometimes called crabgrass by others). Last year I started getting a weed problem, so in the off season, I pulled every weed I could find. This year the lawn came up green and lush and I thought I had beat the Florida weeds for once. No such luck. Now I have weeds spread all over the lawn, some of which attach their seeds to our dog every time she goes out (several times a day). In the early summer I bought Weed B Gone for St. Augustine grass and applied it as directed. No obvious change. I applied it again last month. No obvious change. The weeds are thriving. I’m about to use Spectricide Lawn and Weed Killer which will kill everything, and I can lay sod on the dead areas in the spring. But before I take that drastic action, does anyone know of a product that actually works? I think plain water would work as good as Weed B Gone.

First, make sure your lawn weed killer is safe for the variety of St Augustine grass we have here, which is Flortam. Then make sure the weed you want to kill is listed for your weed killer.
Look for a product called Image for St Augustine grass and Centipede grass at Lowes