Poa annua Control Cancel The title field is required!

1. Wahlin Scott B

   
   11/13/2011 10:11 AM

   What is the least expensive post emergent control for Poa?

   
   
   
   
2. Larry Allan

   

   0 posts
   
   11/13/2011 2:11 PM

   Scotty, just try to maintain it as a desired turfgrass, and it will die.
   
   That's what we do up here

   
   
   
   
3. Andy Jorgensen

   

   1 posts
   
   11/13/2011 4:11 PM

   Round-up. But if you go that route, make sure your resume is up to date.
   
   Plan B I would think is Simazine. Not sure if you can get away with it down there if you still stay green. Might set you back a bit but the upside is no Poa and you won't have to mow.

   
   
   
   
4. Wahlin Scott B

   
   11/13/2011 4:11 PM

   Yeah, we do not remotely approach anything that would be considered dormancy down here.

   
   
   
   
5. Bryan Taylor

   

   0 posts
   
   11/13/2011 8:11 PM

   Kerb works well. We spot treated with Simizine as well. On 328 and common.
   
   Specticle is great preemerge if you dont overseed. Poa control has been outstanding even at low rates. It does have a small amount of post I have seen but not labeled that way. Great on broadleaves too.
   
   Bryan Taylor
   Poipu Bay GC

   
   
   
   
6. Neidhardt John J

   
   11/14/2011 5:11 AM

   We are a 63 hole complex Located on an island in Southeast Georgia. We apply Prodiamine wall to wall in late September on non-overseeded areas, and then 20 oz/acre Round up wall to wall in middle of January, followed a week later by our Spring Pre-emergent of more Prodiamine and Ronstar. Control is dictated by weather and closed dates that I have to predict/choose 6 months in advance.
   
   Our Poa has become Simazine resistant due to heavy use in the 70's and 80's. It will no longer work Pre or Post.

   
   
   
   
7. Nicholas Johnson

   

   0 posts
   
   11/15/2011 1:11 PM

   The course I am at in Texas is resitant to just about everything. Monument, Revolver, Princep and Kerb do absolutely nothing to the plant, (never sprayed Roundup). Bayer did some testing and grew out mature plants from seed and sprayed 6x rates of Revolver on it and the plant didn't even yellow. They also did some trials here last year with Specticle on our resistant poa and had excellent results, so we sprayed it wall to wall last month. Hopefully, we will not be doing any posting out this year.
   
   Last year though, the only thing I got to work was Reward (not cheap and you better be dormant) and also Sencor. We sprayed Sencor at 4 oz/A and had excellent results.

   
   
   
   
8. Baker Daniel

   
   11/16/2011 8:11 AM

   Oh come on Nick, that Poa over there was not resistant When all else fails, blame McConnell...
   
   The course I am at is Monument resistant due to overuse at low rates (1.5g/A) by the previous superintendent. We also have several areas of paspalum throughout the course so we are limited as to what we can do with a post applicaton. I'm banking on Specticle this year at a 2.5oz/A rate applied in the second week of October. Bayer rep all but guaranteed it would work and not ding my paspalum at the low rate. I'm seeing Poa in some areas off the course and under my stands of Live Oaks but have yet to see a plant on the area controlled by Specticle. We may tinker with lower rates in split apps next year to see what we can get out of it without any adverse side effects.

   
   
   
   
9. McCallum David K

   
   11/16/2011 8:11 AM

   Kerb and simazine are great products...........simazine being very inexpensive. Not sure why Kerb as long as its been aroound has not come down in price. Both will move so be careful with irrigation and in front of rain. With Kerb in particular watch your overlapping especially if spraying a closely mowed turf.

   
   
   
   
10. Turner D. Campbell

    
    11/16/2011 8:11 AM

    Prograss

    
    
    
    
11. Ashton Alan W

    
    11/16/2011 11:11 AM

    1947 said: Prograss

    
    
    Only if you are very, very, very dormant...
    
    Did I say to make sure you're dormant? Don't ask why I know this... LOL

    
    
    
    
12. Andy Jorgensen

    

    1 posts
    
    11/16/2011 12:11 PM

    1947 said: Prograss

    
    
    Prograss takes out Bermuda from St. Augustine. For you narthernars, St. Augustine is a grass we put in yards repeatedly.

    
    
    
    
13. Juan Villegas

    

    0 posts
    
    6/15/2012 3:06 PM

    I need some advise in Poa Annua control, my greens are almost 1 year old, under USGA rules, grass variety is Declaration.
    Poa is starting to give me a hard time, what herbicide is safe and effective to control this problem?
    
    Thanks
    
    JMV

    
    
    
    
14. Needham Brent

    
    6/15/2012 5:06 PM

    Cutless can regulate the poa for you. There are some new alternatives for eradicating but not sure if they can be used in the summer. 4oz/acre every 2 weeks.

    
    
    
    
15. Rosenthal Gregg

    
    6/15/2012 9:06 PM

    If it is just little spots and you can plug it out and replace with nursery plugs, I would go with the environmentally sound and positve method on brand new greens first! Safe and no sense finding out your new variety of Bentgrass does not do well with the poa control products. Many have found out the hard way that new varieties of bent do not take well to poa control products.....
    
    JMO...Gregg

    
    
    
    
16. Terry Smith

    

    0 posts
    
    6/17/2012 1:06 PM

    I talked with Dr. Boyd the weed guy here in Arkansas Thursday about Xonerate. His main concern was you are liable to find out how little bent you really have. Being that your greens are young it might be an option for you. I would check with the closest expert, or maybe do a test area before going full bore.
    
    Good Luck

    
    
    
    
17. Keith Pegg

    

    0 posts
    
    6/17/2012 11:06 PM

    Terry Smith said: I talked with Dr. Boyd the weed guy here in Arkansas Thursday about Xonerate. His main concern was you are liable to find out how little bent you really have. Being that your greens are young it might be an option for you. I would check with the closest expert, or maybe do a test area before going full bore.
    
    Good Luck

    
    
    Terry,
    I did xonerate at 1oz /Acre every week for 4 weeks and had 20%+ poa and now on a test green I have no poa and no spots. Bent just filled in over the 4 weeks it was great. At 2 oz 2 times rate some brown but looks good a month later. At 4 oz some brown and still some poa I will have to use more 1oz rate maybe two time this summer to clear it.
    On Fairways the 2 oz rate was best at 3 times over three weeks. Zoysia fairways.
    Next year I will do all greens and all fairways with this product.
    Keith
    Zama Japan

    
    
    
    
18. Ben Ellis

    

    0 posts
    
    6/18/2012 3:06 PM

    Where are you located?
    
    You might be safe as you have heard going with the environmental friendly approach.
    
    We have aerified in the heat of august, and add on a light rate of trimmit, or cutlass, and I mean half the lowest labeled rate, you might be able to out compete the poa. Plugging though would be a great first choice since the greens are so young. You dont want to kill your young greens. That wouldn't look too good.
    
    Overseeeding with I believe is L-93 which interseeds well with Declaration, but dont quote me, may help when adding to fall aerification. Aerify early has helped us out and we are controlling poa better than ever in the last 5-8 years since we began.
    
    Hope this helped, let me know if you have any questions.
    
    Ben Ellis
    Golf Course Superintendent
    Andrews AFB, South Course
    (301) 440-9882

    
    
    
    
19. Justin VanLanduit

    

    0 posts
    
    6/18/2012 4:06 PM

    Keith Pegg said:

    Terry Smith said: I talked with Dr. Boyd the weed guy here in Arkansas Thursday about Xonerate. His main concern was you are liable to find out how little bent you really have. Being that your greens are young it might be an option for you. I would check with the closest expert, or maybe do a test area before going full bore.
    
    Good Luck

    
    
    Terry,
    I did xonerate at 1oz /Acre every week for 4 weeks and had 20%+ poa and now on a test green I have no poa and no spots. Bent just filled in over the 4 weeks it was great. At 2 oz 2 times rate some brown but looks good a month later. At 4 oz some brown and still some poa I will have to use more 1oz rate maybe two time this summer to clear it.
    On Fairways the 2 oz rate was best at 3 times over three weeks. Zoysia fairways.
    Next year I will do all greens and all fairways with this product.
    Keith
    Zama Japan

    
    
    
    Keith,
    
    Curious what the temperatures were when you were doing your 1oz app for four weeks?
    
    Justin

    
    
    
    
20. Juan Villegas

    

    0 posts
    
    6/19/2012 8:06 AM

    I´m in Colombia in South America, my temperatures are more less the same all year, I´using two of my employees every week searching the Poa and taking it out, I can´t find an herbicide here in my country so I need to import from the US.

    
    
    
    
21. Rosenthal Gregg

    
    6/19/2012 4:06 PM

    Philo again with your location and difficulty getting products. I would keep with the keep it simple methodology, spot cut out those poa plants you can see and replace with bentgrass plugs. you have plenty of help and it is easy to do if you have a nursey green to keep growing good replacement pure bentgrass plugs! Labor is cheaper and safer than chemistry no matter how one looks at it! Tu hace una buena dia y bueno suerte con la problema con Poa mi amigo!!
    
    Gregg
    
    Now having a good time growing grass as a team player in Chicago!

    
    
    
    
22. Keith Pegg

    

    0 posts
    
    6/19/2012 6:06 PM

    Justin VanLanduit said:

    Keith Pegg said:

    Terry Smith said: I talked with Dr. Boyd the weed guy here in Arkansas Thursday about Xonerate. His main concern was you are liable to find out how little bent you really have. Being that your greens are young it might be an option for you. I would check with the closest expert, or maybe do a test area before going full bore.
    
    Good Luck

    
    
    Terry,
    I did xonerate at 1oz /Acre every week for 4 weeks and had 20%+ poa and now on a test green I have no poa and no spots. Bent just filled in over the 4 weeks it was great. At 2 oz 2 times rate some brown but looks good a month later. At 4 oz some brown and still some poa I will have to use more 1oz rate maybe two time this summer to clear it.
    On Fairways the 2 oz rate was best at 3 times over three weeks. Zoysia fairways.
    Next year I will do all greens and all fairways with this product.
    Keith
    Zama Japan

    
    
    
    Keith,
    
    Curious what the temperatures were when you were doing your 1oz app for four weeks?
    
    Justin

    
    Terry,
    
    It was from a low of maybe 65 up to 80 and I had 0.0 problems on L93 greens 100% sand 12 " with good drainage. We did not water in and had no rain or irrigation for two days. On fairways I went up to 85 also no problems that was on a local Zoysia grass. The 1 oz /acre rate is the way to go. I am using a Toro 175 gal sprayer with Nozzle ¼ TTJO5-VS at 20" at 40 PSI 3mph. I use this nozzle for 90% of my spray work and it works very good.
    
    Keith Pegg
    Zama Japan

    
    
    
    
23. Kyle Fick

    

    4 posts
    
    6/20/2012 10:06 AM

    I've been discussing Xonerate with some reps, they didn't have many clients using it yet either. What do you all know about its affect on weaker grasses like fine fescues? I've still been delaying using an app of velocity this season as we came out of the gates way warmer than normal, and with an open dry winter, bentgrass was weak to begin with. Any thoughts from the panel.
    
    My thinking is to either obviously walkboom the surface only at a low rate, or mix up a small spray bottle with solution, and "spot" spray the obvious colonies to see how it affects my bent variety here in a very arid environment. I also question the time of year and would like to wait until fall, when the cool season plant is more apt to actively fill in rather than fight to stay alive during July and early August summer temps. Any feedback on this topic I'm sure is worth the time for numerous individuals. Thanks.