re: UPDATE: St. Augustine Yard is a Weed Infested Disaster (Need Help)

After years of the same, I am convinced the St Aug is over rated. Too many issues.

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Well if you had problem with broadleaf weeds, grassy weeds and sedges, and didn’t have either Celsius or Sedgehammer, as the case of the OP, then I’d say yes it’s worth it. But I have nearly a full bottle of Sedgehammer already, but I’m running low on Celsius (year 5 on original bottle) so I’ll buy just Celsius, not the Xtra, when I run out.

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Thanks. I have one main weed problem (other than burweed) but can't figure out what it is. I've brought it here before but wasn't able to get an answer. I'll try again though.

Circling back to this. Craw, I have the Celsius Xtra being delivered tomorrow. Plan on applying it this weekend. Just mix in sprayer as directions call for and apply evenly throughout my yard I assume? My biggest question is, how long do I need to wait to fertilize with 25 or 24 Nitrogen after applying the celsius?

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Circling back to this. Craw, I have the Celsius Xtra being delivered tomorrow. Plan on applying it this weekend. Just mix in sprayer as directions call for and apply evenly throughout my yard I assume? My biggest question is, how long do I need to wait to fertilize with 25 or 24 Nitrogen after applying the celsius?

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Definitely follow the directions on the label. Here is the important thing - it’s going to say spray “x” of grams or ounces per 1000 sq ft of lawn. You can mix the herbicide in any amount of water, but spray that entire amount of solution over 1000 sq ft. The sprayer I use, with my walking gait, usually 2 gallons covers 1000 sq ft. For some it may be a 1 gallon, 1.5, 2, 2.5, … Think of the water only as a carrier to apply the labeled amount of herbicide over 1000 sq ft, don’t think of it as a dilutant. Also be sure to add the surfactant (spreader/sticker) to the herbicide solution.

As far fertilization is concerned you can apply that anytime it is convenient for you. I like to do it before a rain to let the precipitation water it in, but if there no rain forecast apply it 1 or 2 days after the herbicide application and water it in.

I just did Celsius and followed it up with fertilizer.

Reading up, I let the grass and weeds grow a little before spraying the Celsius. Read that you don’t want the weeds cut short when you spray. So sprayed about 5-6 days after mowing.

Then waited about 4 days after spraying Celsius to mow again. Mowed then put down fertilizer next morning.

I was finally able to spray my yard with Celsius Xtra yesterday evening after work. I previously measured everything for square footage, but I highly underestimated how hard it would be to make sure I was applying the right amount over the right area. I hope I didn't nuke it. I had to go over the same areas multiple times to empty the backpack sprayer, and I'm sure I over did it in some areas and under did it in others. Guess we will find out in a few weeks just how bad I messed up. Another thing I'm not sure of, is what this stuff will do to my trees and/or shrubs if it got on it in the process. I have 7 oak trees in the front and side of my house that I had to go over exposed roots while spraying the grass. I also couldve gotten it on a few shrubs while following the contours of the yard around my garden.

you might try adding the blue dye to the mixture next time...at least then you'll know what areas you've hit already and you can roughly gauge the amount of coloration to see how much went down where

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St Aug is over rated.

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Name a better shade tolerant grass.

Thanks. Bookmarked.
I've got one bare area under some trees essentially with no top soil, no grass

I’d love to make a video on how to spray out of a backpack. You don’t criss cross or concern yourself with emptying the backpack. You use 1 gallon per thousand square feet with a fan tip teejet tip. Walk 3.2 mph holding the nozzle 18 inches off the ground. 2 pumps every 10 steps. The current path overlaps to dead center of the previous path.