PGR Damage Cancel The title field is required!

1. Baker Daniel

   
   10/24/2012 7:10 AM

   Any advice on growing out of PGR damage? Had a guy not clean the tank and add to some fairway mix to go handwater an area. Totally hammered the area watered. I have green leaves but they are the shortest things I have ever seen. The rates calculate out to about 12oz primo and 12 oz cutless per 1000.
   
   Thankfully it is a small area at the practice range. Sadly, its the first thing you see when you pull up. Any help would be appreciated.

   
   
   
   
2. Michael Wagner

   

   0 posts
   
   10/24/2012 7:10 AM

   You could always cut out and replace the sod. If that is not an option I think I would water the area heavily with just straight water to make sure any excess chemical is removed from the area. Other than that there isn't much you can do because the chemical has already gotten into the plant by the sounds of it. You could also try adding some fertilizer to the area to help it in growing out of the damage. If anyone asks just tell them your experiment failed and that you're back to the drawing board.

   
   
   
   
3. Kyle Fick

   

   4 posts
   
   10/24/2012 7:10 AM

   I probably will come across as dumb saying this, but here goes anyway.
   
   Since PGR's are a plant growth blocker, wouldn't spraying a mix of chemicals/fertilizers that claim to have auxins', GA's, cytokinins, etc., etc., add the necessary elongation to get your turf back to normal? I had an intern once over spray some trimmit on a steep bank that this happened to (not at those rates mind you), and we mixed up a batch of floratine stuff and sprayed across to release the plants from the stranglehold of paclobutrazol. I think the mixture had astron, protosyn, some cytogro and I'm sure some N-P-K carrying agents, who knows what else we dumped in that spray outfit anymore. Not sure what you have, but I'd think that'd be the only way to get through to the turf.
   
   Might be worth a shot anyhow. And it might take a couple apps to get the right amount of counteraction to those rates of PGR's.

   
   
   
   
4. Michael Wagner

   

   0 posts
   
   10/24/2012 8:10 AM

   Kyle Fick said: I probably will come across as dumb saying this, but here goes anyway.
   
   Since PGR's are a plant growth blocker, wouldn't spraying a mix of chemicals/fertilizers that claim to have auxins', GA's, cytokinins, etc., etc., add the necessary elongation to get your turf back to normal? I had an intern once over spray some trimmit on a steep bank that this happened to (not at those rates mind you), and we mixed up a batch of floratine stuff and sprayed across to release the plants from the stranglehold of paclobutrazol. I think the mixture had astron, protosyn, some cytogro and I'm sure some N-P-K carrying agents, who knows what else we dumped in that spray outfit anymore. Not sure what you have, but I'd think that'd be the only way to get through to the turf.
   
   Might be worth a shot anyhow. And it might take a couple apps to get the right amount of counteraction to those rates of PGR's.

   
   
   
   I don't think this is a bad idea but at the rates you are talking about with your PGRs I think you would have to use so much to counteract it that you might end up spraying them at toxic rates.

   
   
   
   
5. Sean McCue

   

   0 posts
   
   10/24/2012 10:10 AM

   Apply straight Gib Acid and stand back....

   
   
   
   
6. Baker Daniel

   
   10/24/2012 11:10 AM

   Sorry i didnt give enough info in the original post. I am on TifEagle and the soil temp here is still in the 70's so we are still growing. I've flushed everything from the soil but the damage is done. I'm giving it .75#N via 13-2-13 weekly and spraying everything but the kitchen sink. Biggest problem with the foliars is that there is not enough leaf area left to absorb the material. I have begun applying more via the soil as well.

   
   
   
   
7. James Smith

   

   112 posts
   
   10/24/2012 1:10 PM

   Daniel Baker said: Sorry i didnt give enough info in the original post. I am on TifEagle and the soil temp here is still in the 70's so we are still growing. I've flushed everything from the soil but the damage is done. I'm giving it .75#N via 13-2-13 weekly and spraying everything but the kitchen sink. Biggest problem with the foliars is that there is not enough leaf area left to absorb the material. I have begun applying more via the soil as well.

   
   I do not know if it would work but what about using charcol?

   
   
   
   
8. Verdun Scott M

   
   10/24/2012 2:10 PM

   I think activated charcoal would have been a great if you had it on hand and could have applied shortly after the accident happened but since the plant has already taken the product up there is no herbicide left to de-activate. I know this sucks but I think patience is a virtue in this instance, you're going to have to wait 2 weeks+ regardless for the plant to grow out of the regulation... you can't speed up that process.
   
   Personally I would lean toward putting out a pigment to cover the discoloration since it is on the entrance drive and monitor the area closely. Hand water and make sure there is no additional stress and it should grow out fine in a couple weeks. My concern with applying a bunch of fertilizer is that you are creating another problem once the plant is released from the grip of extreme regulation. Grass is resilient and it will recover; you just have to allow it the ability to do so.
   
   Just my opinion,

   
   
   
   
9. Baker Daniel

   
   10/25/2012 6:10 AM

   Scott Verdun said: I think activated charcoal would have been a great if you had it on hand and could have applied shortly after the accident happened but since the plant has already taken the product up there is no herbicide left to de-activate. I know this sucks but I think patience is a virtue in this instance, you're going to have to wait 2 weeks+ regardless for the plant to grow out of the regulation... you can't speed up that process.
   
   Personally I would lean toward putting out a pigment to cover the discoloration since it is on the entrance drive and monitor the area closely. Hand water and make sure there is no additional stress and it should grow out fine in a couple weeks. My concern with applying a bunch of fertilizer is that you are creating another problem once the plant is released from the grip of extreme regulation. Grass is resilient and it will recover; you just have to allow it the ability to do so.
   
   Just my opinion,

   
   
   Sorry, but that made me laugh a little this morning. While it is true, we have a saying around here "The only time you can kill bermudagrass is when your trying to grow it." Can't seem to kill the stuff when we want to but it sure knows how to take a dive sometimes. Also, I think your right about waiting for it to come out of the regulation for more fert. I am now pouring on the biostimulants every other day to try to break the grip of the Cutless/Primo mix. I think I would have a better go at this if the area were affected with one or the other and not both.
   
   I'm not to the point of worrying about the grass actually dying. It just looks unsightly and there are few and very short leaf blades out there. As soon as the super high rates clear the plant I'm sure it will take off. Just getting impatient.....

   
   
   
   
10. Turnbull Brandon E

    
    10/25/2012 8:10 PM

    Applying a straight Giberellic Acid product will counter act the GA synthesis inhibition that Primo and Cutless are causing in the plant and allow them to resume growth

    
    
    
    
11. Jeffrey Smelser

    

    2 posts
    
    10/30/2012 9:10 AM

    Apply Pro Gibb from BWI. Only 2 app's will turn it around.
    
    Jeff Smelser, CGCS

    
    
    
    
12. Kenneth Ingram

    

    18 posts
    
    10/31/2012 9:10 AM

    Curious how things are going after a couple of weeks? I wanted to reply earlier. I have seen PGR effects last for years on cool season grasses here in MD. One was a spill but the other was just a dripping nozzle in the rough behind the green. For 3 or 4 years you could still see darker green, stunted plants. Kenneth Ingram, UMD.

    
    
    
    
13. Baker Daniel

    
    11/1/2012 7:11 AM

    Still looks like hell but recovery has begun. I have leaf buds all over the place but elongation is taking a while. There's plenty of green, but it is overshadowed by the brown still. I'll get some pics up

    
    
    
    
14. Curt Brisco

    

    3 posts
    
    11/1/2012 8:11 AM

    If it is only cosmetic damage at this point,ever thought about painting it. It would at least cover up the damage and painted turf is warmer than the brown you have been left with. It could help promote more growth.
    
    Curt Brisco Supt.
    Fox Prairie G.C.
    Noblesville,IN