[BakerGreenLawnMaker]

From reading most of the topics on here, most all you Bermuda nuts apply PGR's to your lawn. I on the other hand am not as lucky as the guys with Bermuda, I have St aug and treating st aug is like treating a lady. You gotta treat her gently, gotta love her, you think you got her figured out, then she throws you curve ball and you gotta make up your mind weather you bunt or take the strike. If I apply a PGR to my st aug lawn will it benefit my relationship in the long run, or will this be a swing a and miss?

 

[Topcat]

I tried PGR on my St Aug early last year and it did not like it at all. The lawn turned an off color and took about two months to recover.

 

[BakerGreenLawnMaker]

When did you apply it? Did you couple the PGR with N?

 

[Greendoc]

I tried PGR on my St Aug early last year and it did not like it at all. The lawn turned an off color and took about two months to recover.

How much did you apply? Looking at the label, it only takes 1/2 teaspoon or less per 1000 sq ft. I also keep in mind that St Augustine is not the fastest growing grass I have seen. Zoysia in warm weather is far worse in terms of growth per week. I rather control growth on St Augustine by taking it easy on the Nitrogen and rationing water than using PGR on it. Not to mention, PGR makes the new leaves and shoots come out shrunken and way smaller than the untreated leaves.

 

[Colonel K0rn]

I tried PGR on my St Aug early last year and it did not like it at all. The lawn turned an off color and took about two months to recover.

How much did you apply? Looking at the label, it only takes 1/2 teaspoon or less per 1000 sq ft. I also keep in mind that St Augustine is not the fastest growing grass I have seen. Zoysia in warm weather is far worse in terms of growth per week. I rather control growth on St Augustine by taking it easy on the Nitrogen and rationing water than using PGR on it. Not to mention, PGR makes the new leaves and shoots come out shrunken and way smaller than the untreated leaves.

I have several pictures of some nasty goose grass :x that will show this effect precisely. Pic 1, left is a plant that was growing in an area treated with PGR, on the right is untreated. Pic 2 is the same, but untreated is on left, treated is on the right. You'll see a more concentrated green in the treated plant, which is due to the increased chlorophyll count per mm of leaf tissue (cells are more compact). Pic 3 shows the treated plant as I was pulling it from the treated grass

 

[Greendoc]

That is an excellent illustration of how PGR affects grasses with a coarser growth habit. I can take pictures of what Goosegrass does when mowed down to 0.1". That by no means kills it. It just goes flat and becomes the size of a silver dollar. It also makes seeds just fine as well. At that HOC, only herbicides safe on the Bermuda are Ronstar or else Bensulide.