Poa issues in dormant bermuda fairways this winter Cancel The title field is required!

1. Melvin Waldron

   

   43 posts
   
   1/13/2022 10:01 AM

   I'm in SW Missouri and I am seeing a lot more poa in our dormant bermuda fairways already this time of year.  Usually we stay clean until March.  
   
   I have a theory and am just wondering if anyone thinks it is valid and if my possible solution moving forward will work.  
   
   Issue one, we had 8 + inches of rain in October.  That pushed our Indaziflam application into November. which we applied on November 8th at 10 oz per acre.  (we have made to app before that late and had not seen issues).
   
   Issue two, December had average low temperatures over 12° above normal, and had average high temperatures almost 15° above normal.  I am thinking this is the cause of most of my problem, and I am wondering if others might be seeing the issue as well in areas that had way above normal temperatures. 
   
   My solution, (and I didn't come up with this, I saw it on Twitter) is to make a Prodiamine application in early September, and then come in and make the Indaziflam application beginning of November, but going at a lighter rate, say 4-6 oz.(6 is the label rate for single application, 3-9 is for spilt applications 3.5 to 4 is multiple rate application).  I know 4 is a popular rate, I figure I can go with a generic Prodiamine which is very cheap per acre, and with the lower rate of Indaziflam, I could get better results for less cost per acre.
   
   Thoughts would be appreciated.
   
   Thanks,
   
   Mel
    
   

   
   Melvin H. Waldron III, CGCS, Horton Smith Golf Course, City of Springfield/Greene County MO
   
   
2. Robert Crockett

   

   4 posts
   
   1/20/2022 12:01 PM in reply to Melvin Waldron

   Can use use "simazine"? If not, Glyphosate @ 2qt's/acre? I know pesticides are getting ridiculously expensive. 

   
   
   
   
3. Melvin Waldron

   

   43 posts
   
   1/22/2022 11:01 AM in reply to Robert Crockett

   I would have to look to see if it is available up here.  I don't hear much about anyone using it in our area.
   
   Thanks,
   
   Mel

   
   Melvin H. Waldron III, CGCS, Horton Smith Golf Course, City of Springfield/Greene County MO
   
   
4. Mark Claburn

   

   6 posts
   
   10/10/2022 12:10 PM in reply to Melvin Waldron

   Melvin take a look at this research
   THE UNIVERSITY OF TENNESSEE INSTITUTE OF AGRICULTURE
   Poa annua control in hybrid bermudagrass using herbicide mixtures
   https://www.youtube.com/watch?v=O4sKzPLnoq4&list=WL&index=23&t=94s
   
   

   
   
   
   

   Last modified on 10 Oct 2022 17:10 by Mark Claburn
5. Jason Baker

   

   12 posts
   
   1/18/2023 2:01 PM

   Mel,
   
   I had a lot of luck with simazine back in Little Rock and Ga. Do your normal app, then if you start seeing break through, follow up with simazine. It is a preemergent but will knock back young poa.  It will move. and it will damage cool season turf, so be careful around greens, especially above greens.  
   Sorry for the late reply, not on these forums much anymore, kinda miss the old days. 
   
   Jason

   
   
   
   
6. James Smith

   

   112 posts
   
   1/30/2023 11:01 AM in reply to Jason Baker

   Jason I too miss those old days when we had only a few threads to post on. but we had a lot of posters then.
   
   Also if your completely dormant you can use Roundup to knock out the poa.