Poa Control on new Bent greens Cancel The title field is required!

1. Justin VanLanduit

   

   0 posts
   
   12/21/2011 11:12 AM

   This past fall we went through a gas an regrass of our greens. Now with having a new pure stand of bent our obvious goal is to keep the Poa out. New products like Velocity and the new Arysta product are going to be great tools to help combat any establish Poa, but my question is if anyone has experience using Bensumec or Dimension on greens to prevent Poa from starting? I've read on here about guys in Kentucky and that area using such products to combat crabgrass on greens but also know these products are labeled for Poa Annua control. Just thought this would possibly be a method of preventing the start of Poa by doing a fall application or an early spring application.
   Hope everyone is well, and wish everyone a happy and safe Holiday season!
   
   Justin

   
   
   
   
2. Kevin Girt

   

   0 posts
   
   12/21/2011 11:12 AM

   Justin,
   Hey make sure you do a label check. Dimension lost it's label for greens like 15 years ago. Loved using it though.
   Kevin

   
   
   
   
3. Robert Crockett

   

   4 posts
   
   12/21/2011 1:12 PM

   tankers79 said: This past fall we went through a gas an regrass of our greens. Now with having a new pure stand of bent our obvious goal is to keep the Poa out. New products like Velocity and the new Arysta product are going to be great tools to help combat any establish Poa, but my question is if anyone has experience using Bensumec or Dimension on greens to prevent Poa from starting? I've read on here about guys in Kentucky and that area using such products to combat crabgrass on greens but also know these products are labeled for Poa Annua control. Just thought this would possibly be a method of preventing the start of Poa by doing a fall application or an early spring application.
   Hope everyone is well, and wish everyone a happy and safe Holiday season!
   
   Justin

   
   Anderson's does have a product labeled for greens...that contains Dimension "Dithyopyr"....Surf around on the threads here and you"ll find it.....I'll be useing it this season....Andersons G-and Crab's not working for me. I've heard good results from Supers in my area....NW Tx Panhadle here. I've taken out Crab From bent in 95 degree weather with"Quinclorac" also....."Quali-Pro"75%....Large droplets on the sprayer....covers more area w/o penetration into the canopy Merry Christmas to you too!!

   
   
   
   
4. Sandy Clark

   

   0 posts
   
   12/21/2011 3:12 PM

   I can tell you from years of selling it and years of trying to make it work, Bensumec is a very weak product for Poa control. Methiozolin will probably end up being the answer when it finally becomes available. Until then, keep fertility low and water deep and infrequent. Do everything you can to create a bent growing environment. Though not a big believer in it, you might even try the Ammonium Sulfate and Ferrous Sulfate approach. If you are starting with fresh bent greens, you probably have a little better chance of success with Bensumec. Do whatever you can until Methiozolin becomes available.

   
   
   
   
5. Justin VanLanduit

   

   0 posts
   
   12/21/2011 4:12 PM

   Did just google Anderson's Dithyopry and that definitely looks like an option. They have a 9-0-18 formulation with it. I'll have to talk with my Anderson's rep and see what his thoughts are. Completely agree with the practices of watering and fertilization. I think from the start I'm going to use some management rates with Velocity and keep up with that until the new product from Arysta is introduced, that product seems to not impact the bluegrass rough as much as velocity seems to. I also agree on the Ammonium Sulfate use, actually did a late late fall app with it. We will see how things go, at least I can say we no longer have 90% poa greens, little easier to manage the poa now. Have a great holiday guys!

   
   
   
   
6. Andy Jorgensen

   

   1 posts
   
   12/21/2011 5:12 PM

   Velocity works. Saw some photos of some Poa that was smoked. The guy had sprayed it thinking he only had a little Poa....ha ha ha....he was reseeding! Didn't realize he had so much. Bent was untouched, just that the Poa blended in so well.
   
   I just posted in the other thread about my curiosity using Dimension for Poa control in the fall on Bent. If you try it, post your results so we know ourselves.

   
   
   
   
7. Tod Blankenship

   

   0 posts
   
   12/21/2011 10:12 PM

   Methiozolin, Methiozolin, Methiozolin, Methiozolin, Methiozolin
   
   That is the ticket. Try and hunt it down as soon as you can. It is the silver bullet, at least the best thing we have to this point. Very slow death from the poa and very sensitive to all other cool season turfgrasses (at least at fairway height) I am sure there has been some work done on greens as well?
   
   Velocity is or will be "labeled" for greens. It too works but can really do a number in a hurry. I have killed newly established bentgrass at higher rates. In case you missed the part above................
   
   Methiozolin, Methiozolin, Methiozolin, Methiozolin, Methiozolin
   
   Or as was mentioned above, manage the greens for the bentrgrass. But I am guessing where you are located there will be poa pressure regardless. Soil sample core removers and back-filling the plugs with sand is the best bet until you can't keep up. 5 years, 10 years whatever it may be, hopefully by then Methiozolin, Methiozolin, Methiozolin, Methiozolin, Methiozolin is plenty available?

   
   
   
   
8. Keith Fellenstein

   

   0 posts
   
   12/22/2011 10:12 AM

   I would be careful using Velocity on a regular basis...high chance of developing resistance because of the mode of action. maybe save that as an occasional rescue treatment if needed. Get on Trimmit or Cutless at moderate to high rates early in the season and stick with it until late in the season...then use a pre-emerge (like Bensumec) during the winter

   
   
   
   
9. David Stone

   

   9 posts
   
   12/26/2011 11:12 AM

   We just changed our greens from Penncross to A-1 in late 2010-early 2011. The Penncross was seeded in 1982 and was virtually Poa free up until the time we replaced them.
   
   I think the best way to prevent Poa is to preemerge with 9 oz/1,000 of Bensulide (trade name Bensumec) two times every fall. The first application for us is early to mid-September (early if not above 90 degrees later if still very hot). We then make a second application 60 days later. Without the second application we are likely to get some Poa germinate late. Unless you have had a heavy infestation of Crabgrass in and/or around your greens the past 2 years, the second application should eliminate your need to preemerge in the spring. We have never made a spring preemerge application to our greens. Bensulide applied late in the year does not break down much over the winter due to cool temperatures so you get good spring control of Crabgrass. I would be careful using anything containing Dimension as my own experience and test at Kentucky in the late mid-late 90's showed it to make Anthracnose much worse.
   
   Other than the chemical control, hand pick any seen in the spring. You have to have a zero allowance policy. If you see a little and say we need to start soon picking it out soon you are probably already too late as it can get overwhelming quickly. Greens need to be scouted weekly in the spring from the get go cutting out any seen.
   
   If the new product from Korea gets on the market soon you should really be able to keep the Poa out. I saw test plots on a practice green at a golf course near Knoxville last spring and it looked great. Also there was absolutely no bentgrass damage at any time including later that summer which was hotter than average. Of course if you have a lot of Poa there will be thin or bare spots until the bentgrass has time to fill back in.
   
   David Stone
   The Honors Course
   Chattanooga, Tn.

   
   
   
   
10. Patrick Reinhardt

    

    0 posts
    
    12/26/2011 7:12 PM

    David,
    Will you continue the Bensumec treatments on the A-1 greens? Our A-1 greens were 7 years old when I left Atlanta, and they were still Poa free. The A-1 makes it very tough for the Poa to take hold, and we usually ended up pulling 10-20 Poa plants/year across all the greens total.
    
    If you see Mr. Goldworn/Mrs. Wolf around, tell them I said hello.

    
    
    
    
11. David Stone

    

    9 posts
    
    12/27/2011 3:12 PM

    Patrick,
    
    I Plan to continue on the same program with the A-1. I am not convinced any grass can keep Poa out without some help.
    
    I will be seeing Mrs. Wolf sometime this winter. She wanted us to made her up a set of Purple Martin gourds like we have at the course. I will give her your regards.
    
    Good luck with your new job,
    
    David

    
    
    
    
12. Justin VanLanduit

    

    0 posts
    
    12/27/2011 5:12 PM

    David,
    
    Thanks for that great information! That's exactly what I was looking for. Here we don't have the issues with the crab on greens or around them. I just want to be proactive in developing a program to keep these greens Poa free for absolutely as long as possible. I've been reading more and more about Bensumec and that I feel is going to be a great tool! Thanks again!
    
    Justin

    
    
    
    
13. Jeffrey Sexton

    

    0 posts
    
    12/27/2011 6:12 PM

    Justin,
    
    I us 3, 5oz wsp per acre to control goose on my pencross bent greens. I make this application twice for good control. I am in western ky. Guys I know have used it for poa in the fall. Make sure and irrigate it in for 8-10 min. right after app.
    
    
    Jeff Sexton
    Henderson Country Club

    
    
    
    
14. Stephen Okula

    

    3 posts
    
    12/28/2011 3:12 AM

    shenandoah said: Justin,
    
    I us 3, 5oz wsp per acre to control goose on my pencross bent greens. I make this application twice for good control. I am in western ky. Guys I know have used it for poa in the fall. Make sure and irrigate it in for 8-10 min. right after app.
    
    
    Jeff Sexton
    Henderson Country Club

    
    
    WTF is "wsp"?

    
    
    
    
15. Andy Jorgensen

    

    1 posts
    
    12/28/2011 4:12 AM

    okula said:

    shenandoah said: Justin,
    
    I us 3, 5oz wsp per acre to control goose on my pencross bent greens. I make this application twice for good control. I am in western ky. Guys I know have used it for poa in the fall. Make sure and irrigate it in for 8-10 min. right after app.
    
    
    Jeff Sexton
    Henderson Country Club

    
    
    WTF is "wsp"?

    
    
    
    Water soluble packet. WTF is WTF? O nvm.

    
    
    
    
16. Robert Crockett

    

    4 posts
    
    12/28/2011 8:12 AM

    andyjorg said:

    okula said:

    shenandoah said: Justin,
    
    I us 3, 5oz wsp per acre to control goose on my pencross bent greens. I make this application twice for good control. I am in western ky. Guys I know have used it for poa in the fall. Make sure and irrigate it in for 8-10 min. right after app.
    
    
    Jeff Sexton
    Henderson Country Club

    
    
    WTF is "wsp"?

    
    
    
    Water soluble packet. WTF is WTF? O nvm.

    
    Just had to Laugh at that one.....LMAO