Posted 24 Jul 2010 Anonymous Last edited: 25 Jul 2010
Does anyone know the rate for using roundup for spraying poa in couch this time of year? I heard 400 to 1 can anyone clarify this?
Posted 25 Jul 2010 Anonymous
Why round up and not coliseum or monument.
Why take the risk ?
round up!? I guess it's cheap but hell of a big price to pay if you **** up....monument(safe bet 30ml per green costs 30 bucks for 1500m2, kills some broadleaf too but we still mix with selective herbicide too ensure good kill), or poa check(gotta time right and apply correctly) sometimes if not much there we pick it out , as doesn't last long in warm weather and close mowing heights.
Posted 25 Jul 2010 Anonymous Last edited: 25 Jul 2010
Why not coliseum or monument ? I have 10 hectres will cost about 2k . When couch is dorment there is minimal risk if using a low rate. Why spend this when roundup will do the job? There is a safe low rate, as courses who have wisened up to this method will attest, I recall reading an article on this a few years ago. So can anyone confirm the rate of 1-400?
Posted 25 Jul 2010 couch rules Last edited: 25 Jul 2010
1-100 is pretty much a rate to kill all grasses when growing, as for using on dormant couch i have heard of guys spraying roundup at 1/2 strength so that would be 1lt in 200lt water, but take no word for it as i havnt used it myself.otherwise i suggest trying it out on a practice fairway this year and seeing what happens especially how it comes out of dormancy. it may also depend on what type of couch you have, it may react different on common to wintergreen or sanna anna
Posted 25 Jul 2010 Anonymous
Good luck with your round up, 2k or potentially your job.
Yes people have used round up for this, not many still doing it I imagine.
let your boss make the call in writing.
Posted 25 Jul 2010 Anonymous
No luck involved here, rest assured dorment couch aint taking in roundup just need to query the rate. Obviously anyone involved in selling the $$$ products will disagree..
Posted 25 Jul 2010 Roaring Silence
Plenty still doing this, though not really for Poa.
Most would be spraying fairways & roughs to remove Kikuyu 
I'd start with a 1/10th rate (100ml / 100L), have heard 1/4 rates (250ml / 100L) but when doing things like this is always best to er on the side of caution.
Propyzamide (Kerb, Burst etc etc) is cheap enough and doesn't really track too bad, can move if you get very heavy rain.
Monument is fantastic but has the potential to track onto greens so a buffer zone needs to be established, along with washing in that night / next morning.
Still the best control is pre emergent, not going to help now but for next season it takes the heartache out of trying to clean up the Poa!
Are you kidding me Anon of course it will take the round up mix it at 1/10 and see what will happen it's just the rate and the fact poa is alot more active this time of year, so what's the story with your budget? are you a turf grower running their own show that chooses not to use $2000 worth of monument on 100000ha and you are not answerable to anyone therefore it is your risk? I can't work out whether you have big balls or no balls......I guess it doesn't matter really good luck with your selective/non-selective weed spraying.
Posted 26 Jul 2010 Stephen Sutton
I tried Monument last year to control Kikuyu in couch grass tennis courts and now the kikuyu has come back more than ever.
It didn't stop the Kikuyu at all!
I have now sprayed with 50% roundup and eliminated all the Kikuyu. The couch grass is knocked back a bit, but will recover in Spring. Monument is way, way overpriced and over-rated.
Posted 26 Jul 2010 Anonymous
Last I read , the guy was trying to remove poa from couch.
Not kikuyu from couch.
There are plenty of other options for Kikuyu, all have different results.
I use the rate of 500ml/ha every August/Early September on Legend fairways and have never had a problem with it.
If it's such a sure thing perhaps we can start teaching these methods at tafe eh? Try this kids!What the?! If I was you guys I recommend keeping your methods close to your chest or you might find the price of round up increasing along with a new label giving directions as to eradicating weeds in couch during dormancy. Good luck cowboys!
Posted 26 Jul 2010 Anonymous
C'mon SA Boy this is a forum to discuss ideas you've got to be more open minded to peoples experimentation. Okey maybe you don't have the balls to try something that as you have read the post before yours, do infact work .
This is the information I am after. I know that golf clubs have been using this method with success. Maybe the new era of greenkeepers are not prepared to experiment...
In reply to your post SA BOY they do in fact briefly touch on this as an alternative for spraying out poa in the TAFE system but obviously don't promote it as you said, it's not labelled. It's just like simazine everyone was using this a decade ago and probably still are or roust. As anon said there are plenty out there using it, you would be suprised.
Posted 26 Jul 2010 Anonymous
I tried roundup at one quarter rates last year on santa ana couch to eradicate poa but found myself having to returf the whole area!Not worth the risk I say,it would have worked out cheaper to spray Monument in the first place!!!
I have no problem with experimentation at all, but what are the facts, if it's a costing option are you taking on the resonsibilty yourself ie, are the committee aware of what your methods and are they comfortable with this? What are the consequences if in the rare chance you **** up my ballsy friend e.g.spray overlap, nozzle malfunction, an apprentice putting wrong amount, mis -timing the dormancy period these things can happen yeah?, and are the committee comfortable with that risk? Besides if your that ballsy put your name to it Anonymous then maybe some of us will follow suit because such and such do it and it works!(Could help convince other greenkeepers have the balls to implement such a method)
I don't think this topic is about trying to get everyone on board the roundup train SA BOY it's about sharing experiences with what was asked in the first place. I have no problems with labelled products either, the $2K can be spent elsewhere is my opinion.
To your **** up statement, good spray tank, myself or the 2IC to apply it never an apprentice and knowledge and experience with your grasses and location for dormancy. I don't see the comment for being so ballsy!
Posted 26 Jul 2010 Anonymous
Have to agree once you discuss topics you will find a wealth of information . I don't think anyone should be critised for sharing knowledge that can benefit others.
Maybe many just follow the mob with the belief that labelled products are the only ones that work
Posted 26 Jul 2010 Anonymous
Round up is round up is round up, There are so many "round ups" available these days all with different amounts of active, so Joe Blo may use 1litre per hectare but is it the same litre as Joe Blogs.???
And does Joe Blogs use an additive or just round up.
sorry if you feel I have criticized the sharing of ideas, I didn't mean that at all, in fact I am all for sharing ideas, I asked some questions I was wondering whether they could be answered ie. are you taking the responsibility into your own hands? is it necessary if the committee is prepared to allow the budget anyway or do you prefer to handle poa this way? I guess it doesn't just kill poa does it do a number on everything? I don't deny it works and kudos to you if you are succeeding, you have to admit though this is not just any experiment,and as above there can be consequences is it actually illegal to use round up in this way as labels ARE there for a reason and do come in handy?Not that I would dob, it's just not my style! Excellent topic, once again sorry if I come across pig headed but you must admit it's a little freaky to get your mind around spraying round up on your beloved turf!perhaps someone could send some pictures of your results?
Posted 26 Jul 2010 Anonymous
We need an expert opinion, Mr Bass ?
Posted 26 Jul 2010 Anonymous
With the above knowledge I plan to use a rate of one tenth. I think spraying this over dorment couch will be safe. Will wait until August as the couch generally browns off a bit more by then. For sure the 2K will be used else where.
Will post the results for all to read once available.
Someone call me?? lol
I'm steering clear of this conversation over my apprentice head 
I will say it would be easier to read if there wasnt so many bloody anonymous postings.
Why cant you all just make a name up?
Posted 27 Jul 2010 Anonymous
Iv used glyphosate at many different rates to kill various species including poa and kikuyu from my wintergreen couch fairways many of times. I have always had great results. You know your turf best, your conditions ,etc. i suggest start at a very low rate and go from there.
Whilst the couch is dormant and I have never killed any, the only down side to using the glyphosate is that the couch does take quite a bit longer to come out of dormancy and get back its colour and vigour. Id suggest also if you do decide to do this, that you dont do it every year. Make sure you give your turf a break every few years, because even though you may not kill your couch it does knock it back.
Good luck and congrats on thinking outside the square!
Simazine-soil residual, round up-non soil residual, right?
That is correct Simazine is soil residual for around 4-6 weeks and therefore works as a pre and post herbicide. I prefer to use oryzalin as my pre emergent but if you are looking for both its not a bad cheaper alternative.
Posted 27 Jul 2010 Roaring Silence Last edited: 27 Jul 2010
1 day ago by Stephen Sutton
I tried Monument last year to control Kikuyu in couch grass tennis courts and now the kikuyu has come back more than ever.
It didn't stop the Kikuyu at all!
I have now sprayed with 50% roundup and eliminated all the Kikuyu. The couch grass is knocked back a bit, but will recover in Spring. Monument is way, way overpriced and over-rated.
Stephen, Monument is only registered for suppression of Kikuyu. You were never going to get 100% control in one application. Maybe your expectation exceeded reality?
Multiple applications along with additional products though the season (MSMA, DSMA etc) then Drive in Autumn will go along way to riding you of the Kikuyu problem.
I used Monument over a number of seasons to clean up long neglected Couch fairways, as part of a program it worked a treat and allowed for a steady transition between the two grasses.
Posted 30 Jul 2010 Nadeem Zreikat
Good old Poachek is registered on poa. Not reccomended for use on kik, fescue or sana ana though and can be used on greens.
Always read the label before uisng any product especially what they say with weather conditions
Posted 31 Jul 2010 Anonymous
I have used round up @ 400ml per/ha when I first installed a couch surface and was absolutely over the moon when monument came on the market as I found my couch struggled to come out of dormancy after round up application.I also agree that more than two apps of round up in consecutive years was even more harmfull to the couch
As for use of monument on Kikuyu you need to apply more than once and you need to use sticker as you do on poa control
Best time to use monument on kikuyu is in autumn and believe it or not mid winter and spring
If you can just back pack the areas of kikuyu and this will help save a $ or two
Posted 31 Jul 2010 Anonymous Last edited: 31 Jul 2010
I have used round up @ 400ml per/ha when I first installed a couch surface and was absolutely over the moon when monument came on the market as I found my couch struggled to come out of dormancy after round up application.I also agree that more than two apps of round up in consecutive years was even more harmfull to the couch
As for use of monument on Kikuyu you need to apply more than once and you need to use sticker as you do on poa control
Best time to use monument on kikuyu is in autumn and believe it or not mid winter and spring
If you can just back pack the areas of kikuyu and this will help save a $ or two
Sorry didnt relise I hit send twice
Posted 3 Aug 2010 Gary Chatfield
Some couches are more tolerant of Roundup than others. Never go more than 1 litre / hectare in 400 litres of water. Atrazine 40% does a great job too at up to 1.5 litres / hectare / water 400litres. Use a surfactant with the Roundup.
Test to try what rate does the best job for you. If the couch is completely dormant then not a problem to use the maximum rate.
Good luck
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