Message Board - Golf: Chemical control of Ryegrass
8 Jun 2009 by Richard Cutler
Hello all,
Does anyone know of any chemical for control of rye in fine turf?
I have infestation in my green surrounds which is encroaching onto greens. Scarification/verti-cutting is helping but it is a very slow process. Re-turfing would be a very painful alternative that I hope to avoid.
Any advice gratefully received.
8 Jun 2009 by Ken Barber
Hi Whin, Are you sure its Rye since it has a bunch type growth habit and only produces minimal lateral growth?
Many years ago, I had a similar problem with ryegrass in my surrounds and resolved it by using a weed wick with roundup. You will have noted that the ryegrass grass grows quicker and more upright that the other grass species, so it is possible to wipe the rye with roundup without touching the bent or fescue........ However, it requires a steady hand.
Good luck
KB
The true meaning of life is to plant trees, under who’s shade you do not expect to sit.
8 Jun 2009 by philipfish
Whin,
I assume you are refering to Annual Meadow Gras/Poa when you say "rye".
I posted about the chemical control of AMG a few weeks ago and gleaned the following chemical solutions:-
1) Glyphosate: The application rates are 100ml of Glyphosate to 100 litres of water per hectare. I have been told this will kill the AMG, and leave the perrenial rye (not sure what it will do to other fine gras species).
2) Ethofumisate (Notron Flo): Dont know what mix or what effect it will have on the other fines grass species!
3) PrimoMaxx: retards the AMG
So far I have not tested either of the first two products (they are going to be aa last resort for me). I am using PrimoMaxx which is certainly reducing the Poa activity and reducing seed production.
I would reccommend you test on a trial area first to see what the effects are.
Phil Fish
8 Jun 2009 by Ken Barber
Hi Philipfish, I would be very surprised if Whin is referring to rye as amg.
I think Glyphosate will take out or stress most grasses at this rate. A very risky way of controlling amg. I would certainly suggest trialling in areas where kill or die-back is not a problem.
Ethofumisate will control most grass species and have no effect on ryegrass. It is common practice in the States to keep ryegrass clean using this chemical.
Primo Maxx will slow down ryegrass growth and reduce required fertiliser input. It is also said to help in reducing amg populations.
KB
The true meaning of life is to plant trees, under who’s shade you do not expect to sit.
9 Jun 2009 by chrismitchell
Hi Ken. Hope you enjoyed the golf and the Harveys!
You mention using a weed wick for selectively hitting rye with glyphosate. Have you any idea if they are still available? I have been looking for a while as I want one to spot treat birch and gorse saplings in heather areas.
Chris
You will never see a statue in honour of a committee.
9 Jun 2009 by Ken Barber
Hi Chris, The course played and looked excellent..... thank you again for your hospitality.
Yes you can still get them. They are called 'Microwipe' and available from Micron Sprayers Ltd Tel: 01885482397
KB
The true meaning of life is to plant trees, under who’s shade you do not expect to sit.
9 Jun 2009 by Ken Barber
I have just heard that Syngenta have brought out a herbicide for controlling ryegrass and some of the other coarse grasses. It is probably your best option and I would contact Syngenta for more details.
KB
The true meaning of life is to plant trees, under who’s shade you do not expect to sit.
10 Jun 2009 by Barry Pace
Hiya Chris, will pop in say hi if covenient one day,,,,
I know I saw a small trailed weed wipe in Harper and Eede some time ago,,,,, thinking about it may have been a long time ago but heres a couple of pics I just found online, speak to Does or any of the other reps locally I reckon
Barry
Plastic.... it's The End I tell you... THE END!!!!
10 Jun 2009 by Barry Pace
and a n other
Plastic.... it's The End I tell you... THE END!!!!
11 Jun 2009 by Gordon the Gopher
copied from an earlier post:
Laser (an ag product) can be used to kill the Rye in a establised sward. I of course would never recomend that anyone use an ag spray for off label use.
Just letting you know what some people who don't have these concerns have used to get rid of the rye.
And just so you know what to avoid here is a link to the label.
http://www.agricentre.basf.co.uk/uk/deploy/media/uk_ie_internet/product_files_uk/labels/Laser.pdf
16 Jun 2009 by Vic Demain
Ken, took your advice and 5 days ago emailed the company to ask details. As yet not even a reply, that's customer service for you!!!
16 Jun 2009 by Joe Gornall
Hi guys
Im rather interested in this thread as my greens infested with rye. Looking briefly at the laser label, on page 2 in the table it says it will kill creeping bent (albeit with a substantially heavier application). It's resistant to red fescue, so I guess it would depend on what your dominant species is? Wouldn't that be a big risk on a bent green?
I'm no pro, but my approach is to just keep overseeding/topdressing and grooming (don't have a verticutter) in the hope that the bent will out compete the (hopefully dying) rye which does't like being cut short
Good luck, I'll be interested to see if syngenta have any info
Joe
16 Jun 2009 by Ken Barber
Hi Ascott, Maybe a phone call will get a more immediate response..... It could be, your email was forwarded to someone who is on holiday or out of office. Not that I should be making excuses for their tardiness!
Good luck in your quest!
KB
The true meaning of life is to plant trees, under who’s shade you do not expect to sit.
17 Jun 2009 by Vic Demain
Reply received today, product has yet to gain approval from CRD.
5 Jul 2009 by Torch
I have heard that Scott's are launching a Syngenta product that controls rye. The trial results have been said to be fantastic so I am looking forward to carrying out a trial on my course.
We have some very coarse agricultural rye on our green that has crept into a seed mix many, many years ago. The result is that it has infested two or three greens in a patchy fashion. My approach has been to use Primo, increase top dressing and overseeding in an attempt to out compete it. No dice.
The only way so far has been to keep the mower blades very sharp in order to integrate the weed into the sward. However, if we miss more thatn two days mowing then it is very obvious and straggly. This is mainly a problem at the start and finish of the season.
This means that although I am hesitant to use a chemical control it may be the most effextive solution.
The answer is None more black.
7 Jul 2009 by glenkeeran
Hi whin
syngenta are launching a new product called "rescue" next Tuesday. This is to control rye in fine turf....
Regards
Brian
everything happens for a reason
7 Jul 2009 by Kip
From what I read/understand, RESCUE is only good for Rye and not POA. Is that correct?
7 Jul 2009 by Pitchcare Peter Last edited 7 Jul 2009
The launch is actually today - see this article on the home page:
http://www.pitchcare.com/magazine/article/6807
7 Jul 2009 by AB
My understanding is that the new product will take out Rye and leave Fescues, but is NOT suitable on an AMG dominated sward.
We have a similar problem to Torch and numerous other , mostly older courses, that have had contaminated seed or misguided and doubtless desperate greenkeepers adding rye to their greens.
Don't suppose anyone else has not used Laser, or knows of anyone else who hasn't and what results they got?
Andy.
7 Jul 2009 by AB
It quite clearly sates in the launch jargon that Rescue will take out Rye in an AMG dominated sward. I would love to see and speak to those that have done the trials. If proved to be effective, this could be the solution to a lot of greenkeepers headaches!
Andy.
7 Jul 2009 by Torch
HI AB,
I know that trials were carried out at Orsett GC in Essex with good results.
Torchio.
The answer is None more black.
7 Jul 2009 by Vic Demain
Spoke with my rep today who says the cost will be about £240 for a litre. We who work on bowls will only require about 150mls. Does anyone know if there is a plan to package a smaller amount as happened with primo maxx?
17 Jul 2009 by Vic Demain
Spoke to Simon Watson from Syngenta yesterday and it seems that although Rescue has gained certification for golf use, it hasn't yet for bowls and I would guess the same is true of tennis.
Bit of a shame really, perhaps Ken you could sell me some on the black market?
AB apparently the product is fine for use with AMG, may discolour it for a while similar to primo maxx.
17 Jul 2009 by Ken Barber
I am kind of surprised that it is labeled for one sport and not others. Most chemicals labeled for turf are generally termed for amenity use, which covers most things.
KB
The true meaning of life is to plant trees, under who’s shade you do not expect to sit.
17 Jul 2009 by AB
My thoughts exactly Ken!
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