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PGR thread for lawns - Plant Growth Regulator

Posted on 5/13/24 at 11:16 am
Posted by bayoubengals88
LA
Member since Sep 2007
19009 posts
Posted on 5/13/24 at 11:16 am
Anyone else using it?
I'm gonna give it a try later this week starting at a low rate of .2 oz per thousand (common bermuda), and at a lower rate for St. Aug.

These pictures convinced me to go for it, and I don't really have the time to mow every 2-3 days right now.



This post was edited on 5/14/24 at 8:29 am
Posted by Ziggy
Member since Oct 2007
21546 posts
Posted on 5/13/24 at 11:22 am to
quote:

bayoubengals88

I just put down my first application (1/2 rate) about a week and a half ago so I can't really report on much yet. I have Tifway 419.

Make sure to add some iron to your application to help with possible tip burn.
Posted by bayoubengals88
LA
Member since Sep 2007
19009 posts
Posted on 5/13/24 at 11:50 am to
quote:

Make sure to add some iron to your application
I planned on it! Do you mix? Add a surfactant?

Ideally I’d mix iron, PGR, and Ammonium Sulfate.

Posted by Ziggy
Member since Oct 2007
21546 posts
Posted on 5/13/24 at 12:03 pm to
quote:

I planned on it! Do you mix? Add a surfactant?

I did not add a surfactant. I do not recall that being something recommended with PGR?

I added NutriSolve (Ron Henry product) which has 2% iron in it as well as other micronutrients.
Posted by ole man
Baton Rouge
Member since Nov 2007
11764 posts
Posted on 5/13/24 at 3:49 pm to
I didn’t add iron last year and burnt my front. Took a good while to recover
Posted by Ziggy
Member since Oct 2007
21546 posts
Posted on 5/13/24 at 7:53 pm to
quote:

ole man

Did you do full rate for your first application?
This post was edited on 5/13/24 at 7:54 pm
Posted by ole man
Baton Rouge
Member since Nov 2007
11764 posts
Posted on 5/13/24 at 8:21 pm to
Half but I think I had a couple spots wher I overlapped A little heavy wasn’t the whole front yard
Kinda gun shy this go round
This post was edited on 5/13/24 at 8:25 pm
Posted by ronk
Member since Jan 2015
6231 posts
Posted on 5/13/24 at 9:05 pm to
I haven’t done it yet. Strange weather, early greening followed by a stall, I have been trying to aerate the last 4 Saturdays and it rains, I’m sand leveling May 31st and June 1st so I want the grass to grow through. 46-0-0 should expedite that.
Posted by reauxl tigers
Tiger Woods Fan
Member since Aug 2014
8011 posts
Posted on 5/13/24 at 9:34 pm to
quote:

Ideally I’d mix iron, PGR, and Ammonium Sulfate.
What's the benefit of mixing Ammonium Sulfate with PGR?
Posted by ronk
Member since Jan 2015
6231 posts
Posted on 5/13/24 at 10:49 pm to
Up, down, all around. 21% ammonium sulcate to push growth. Can grow vertical so must grow horizontal
Posted by bayoubengals88
LA
Member since Sep 2007
19009 posts
Posted on 5/14/24 at 8:28 am to
Editing this thread title now to be more general.
Did you start PGR last season though? I saw a thread from last year where you talked about it.
Posted by LSUtigerME
Walker, LA
Member since Oct 2012
3809 posts
Posted on 5/14/24 at 5:41 pm to
What’s the cost of this per ksqft? I’ve heard of it but haven’t really delved into it since I have a very large lawn.

Would it be suitable for zoysia as well?
Posted by bayoubengals88
LA
Member since Sep 2007
19009 posts
Posted on 5/14/24 at 7:18 pm to
For Zoysia, it’s rated at 11 oz an acre.
You’d probably start with 6.5 until you get comfortable with it.

Label rate could stunt growth for quite a long time, or so I’ve read.

T-nex is almost $1.25 per oz. When you buy a gallon. Roughly $160.

So label rate will run you a little less than $13.75 per acre per application. Or, about 31 cents per thousand sq ft per application.

Usually apply every two weeks.
This post was edited on 5/14/24 at 7:21 pm
Posted by bootlegger
Ponchatoula
Member since Dec 2012
5341 posts
Posted on 5/15/24 at 8:58 am to
I use Solace from Regal Chemical, start around 14 oz/acre and increase through the growing season (on bermuda sports fields). Makes for a dense turf, and I time my applications before we get a wet period, to cut down on growth when we can't mow as often as we'd like. Also suppresses seed heads, which gives the fields a "grayish" look.
This post was edited on 5/15/24 at 8:59 am
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