DSMA Selective Herbicide

DSMA Selective Herbicide solution is for the selective control of grassy weeds and is ideal for commercial use. 

DSMA Selective Herbicide has proven an effective, reliable selective weed killer.  Arguably the most widely used herbicide on couch, it controls difficult and unsightly grass weeds in recreational and sporting turf.

Active Ingredient: Disodium Methylarsonate (DSMA) @ 220g/L

(1-Litre pack sizes are unavailable until further notice)

Click For Technical Info & Tips For Use
4 out of 5 (14 customers reviews)

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This item is large and requires a courier! Ensure a courier can reach your address.
Don’t worry, shipping is STILL FREE!
Click here for shipping info or give us a call.

Ordering multiple large items? They will be shipped on a skid or pallet to ensure that your items arrive safely and securely. The delivery truck will need to be unloaded with a forklift. If you do not have a forklift, please provide an address where a forklift is present.

DSMA Selective Herbicide DSMA Amgrow Apparent AG

Description

DSMA Selective Herbicide

Active Ingredient: Disodium Methylarsonate (DSMA) @ 220g/L

DSMA solution is for the selective control of grassy weeds and is ideal for commercial use.   Over many years DSMA has proven an effective, reliable selective weed killer.  Arguably the most widely used herbicide on couch, it controls difficult and unsightly grass weeds in recreational and sporting turf.

DSMA is a liquid solution of DSMA for the control of Paspalum (Paspalum Dilatatum), Summergrass (Digitaria spp.), Mullumbimby Couch and other sedges in common couch, bent and fescue lawns, bowling greens and golf courses.

What weeds are DSMA Selective Herbicide registered to control;

  • Paspalum (Paspalum Dilatatum)(Bahia Grass)
  • Sedges
  • Mullumbimby Couch
  • Crab Grass
  • Nut Grass
  • Summer Grass / Crab Grass (Digitaria spp.)

What turf varieties can DSMA Selective Herbicide be used on;

  • Bent Grass
  • Fescue
  • Buffalo
  • Couch
  • Other Turf – refer to directions of use prior to applications

Do not use DSMA on Queensland Blue Couch, Carpet, Kikuyu or Centipede grasses as severe injury may result.

Why choose DSMA Selective Herbicide;

  • Contains the active ingredient DSMA (Disodium Methylarsonate), a member of the Organoarsenic group of Herbicides.
  • Clear aqueous free-flowing solution with an in-built wetting agent
  • A selective grass weed herbicide that is suitable for use on certain turf grasses to control paspalum, summer grass, Mullumbimby couch, crabgrass and nutgrass. 
  • Easy to use and apply and can be tank-mixed with compatible pesticides and fertilisers.

Tips for using DSMA Selective Herbicide;

  • Do not use the product on Queensland Blue Couch, Carpet, Kikuyu or Centipede grasses as severe injury may result.
  • Do not apply to dry turf during hot weather (>300 degrees ).
  • Do not water or cut grass for 24 hours after treatment.
  • Do not spray on windy days as drift may damage desirable plants.
  • The area to be treated should be watered the previous day to ensure the soil is moist.
  • Use the finest spray possible.
  • Application at the lower rates will reduce discolouration but will require repeat applications at 7 days and 14 days later. Repeat spray program as necessary.

DSMA Selective Herbicide Pack Sizes: 1 Litre &  10 Litre (1-Litre pack sizes are unavailable until further notice)

Registrant:

DSMA Clear Selective HerbicideAmgrow Pty Ltd (APVMA #: 52802)

Apparent Demolish Selective Herbicide – Titan Ag Pty Ltd (APVMA #: 85554)

Turf Herbicide Range

 

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4.93 out of 5 stars

14 reviews

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What others are saying

  1. David Gleeson

    David Gleeson (verified owner)

    This product kills all the weeds it says it will kill plus other broadleaf weeds as well and is safe on couch. I use it at 30ml per litre and I’m so happy with the results as well as the service from Specialist Sales.

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  2. Edward

    Worked well

    Edward (verified owner)

    works great. Prompt delivery

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  3. Ian

    Works well

    Ian (verified owner)

    Have had a short time to evaluate but this product seems to be getting to the weedy/paspalum in our grass. Just what it is supposed to do

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  4. jarrod

    work awesome

    jarrod (verified owner)

    works great, dont hesitate. you wont regret it.

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  5. Neil

    Just works

    Neil

    knocked over my paspalum and crab crass investation, allowing the couch to take hold. With a few more applications should see that back end of it.

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  6. Duncan

    The Herbicide I have been looking for

    Duncan (verified owner)

    Nothing was getting rid of the paspalum from my back yard and I was getting sick of mowing it just to keep the paspalum down. One application of this significantly reduced the stuff and I am confident that continued use and following of the directions will clear it far better than any other product I have tried before.

    Highly recommend.

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  7. J. Diemar

    Worked well where others failed

    J. Diemar (verified owner)

    Have repeat purchased this product because it works where others failed on not only broad leaf and flat weeds but advanced mullumbimby couch/nut grass.
    Some initial discolouration of the couch lawn occurred.

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  8. Greg

    Crab Grass is suffering

    Greg (verified owner)

    Prompt delivery; thanks. First application is working; another to follow once rain moves on.

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  9. Grant D

    But grass now stuffed

    Grant D (verified owner)

    This product works after two applications. Great.

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  10. Jesse Knight

    Jesse Knight (verified owner)

    Item was delivered much sooner than expected and I’ve gotten very good results getting rid of crab grass and paspalum in my Bermuda lawn. Killed almost all broadleaf weeds too and my Bermuda grass didn’t discolour at all.

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  11. Yianni Athanasopoulos

    A fantastic product to eliminate those stubborn weeds!

    Yianni Athanasopoulos (verified owner)

    This is the second time I have purchased this product and I love the versatility that comes with the use of one selective weed killer. I have been slowly winning the battle against a paspalum breakout and this product is doing everything it says it will do! From an economic perspective, the 10 litre bottle lasted me a whole year.
    Thanks again specialist sales for referring me to this product last year 😀😀

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  12. Roland Jansen

    DSMA- selective

    Roland Jansen (verified owner)

    100% Strike rate on 1st blanket spray. Juvenile grassy weeds burnt out in first week, 2nd application on established grassy weeds burnt out in 2nd week. 100% recommend.

    Sprayed 4 months on new seeded couch lawn, slight bruising, colour back after 3 days.

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  13. Brit

    Brit (verified owner)

    Highly recommend specialist sales

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  14. Luke Reymond

    awesome advice

    Luke Reymond (verified owner)

    The team at Specialist sales were very quick to respond to my query and recommended the right product to deal with my issue. Product was delivered super quickly and without any issue. would highly recommend the specialist sales team.

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Features & Benefits

  • Contains the active ingredient DSMA (Disodium Methylarsonate), a member of the Organoarsenic group of Herbicides.
  • Clear aqueous free flowing solution with in-built wetting agent
  • A selective grass weed herbicide that is suitable for use on certain turf grasses to control paspalum, summergrass, mullumbimby couch, crabgrass and nutgrass. 
  • Easy to use and apply and can be tank mixed with compatible pesticides and fertilisers.

Directions Of Use

Directions for Use:


Species Controlled:

  • Paspalum, Summergrass, Mullumbimby Couch, Sedges, Crab Grass, Nut Grass

Situation:

Turf Couch – Golf Green, Parks, Lawns & Tennis Courts

  • Rate: 250mL – 660mL in 4.5L – 20L Water per 100m2 (All states except WA)
  • Rate: 250mL in 4.5L- 20L Water per 100m2 (WA Only)

Turf Couch – Bowling Greens

  • Rate: 10L in 300L Water per standard green (All states except WA)
  • Rate: 10L in 3.8L Water per standard green (WA Only)

Turf Bent or Fescue – Golf Green, Parks, Lawns & Tennis Courts

  • Rate: 250mL – 410mL in 4.5L – 20L Water per 100m2 (All states)

Turf Bent or Fescue – Bowling Greens

  • Rate: 6.1L in 300L Water per standard green (All States)

 


Turf Buffalo Grass – Golf Green, Parks, Lawns & Tennis Courts

  • Rate: 250mL in 4.5L – 20L Water per 100m2 (WA Only)

Critical Comments:

  • Do not use the product on Queensland Blue Couch, Carpet, Kikuyu or Centipede grasses as severe injury may result.
  • The area to be treated should be watered the previous day to ensure the soil is moist.
  • Use the finest spray possible.
  • Some injury to the turf may occur if applied when air temperatures exceed 30 degrees Celsius. 
  • Use of the lower rates will reduce discolouration but will require repeat applications at 7 days and 14 days later.
  • Repeat the spray program as necessary.

Note: Applying additional products in the same tank mix increases the phytotoxic risk to crops and may cause damage.

Rates are a general guide only. Before opening, carefully read Directions for Use, Precautionary and Protection Statements, Storage and Disposal, Safety Directions and First Aid Instructions.

DSMA Clear Selective Herbicide Label

Apparent Demolish Selective Herbicide Label

 

Questions and answers from customers

    Three days ago I sprayed my paddock with 2 litres of DMSA Clear per 60 litre spray tanker with boom with one pass to eliminate the paspallan but I have noticed the couch grass is turning brown and the paspallan appears to be dying. Have I killed the couch too ,or will the couch recover ?

  1. Q Three days ago I sprayed my paddock with 2 litres of DMSA Clear per 60 litre spray tanker with bo...... Read more
    Asked by Richard Walker on February 4, 2024 11:38 am
    Answered by the admin

    It sounds as though you are seeing the results of phytotoxicity. This may result from the over-application of the herbicide, environmental conditions or plant sensitivity. With this effect, the chemical interferes with essential plant processes, leading to symptoms like stunted growth, discolouration, tissue necrosis and deformities. It's worth noting that some injury may occur if DSMA is applied when air temperatures exceed 30 degrees C, and it's best to spray either in the early or later parts of the day when temperatures are cooler. It is unlikely that the damage will be permanent on the couch turf.

  2. I have a Sahara couch lawn and would like to eliminate the crowsfoot grass that infests it. I have purchased DSMA clear and applied it at 30ml/1lt, but it does not look like it will kill. Do I need to apply it more than once?

  3. Q I have a Sahara couch lawn and would like to eliminate the crowsfoot grass that infests it. I hav...... Read more
    Asked by Tony on January 12, 2024 9:15 am
    Answered by the admin

    DSMA Selective Herbicide is not registered to control crowsfoot grass in turf situations. DSMA is recommended to control Paspalum (Paspalum Dilatatum)(Bahia Grass), Sedges, Mullumbimby Couch, Crab Grass, Nut Grass & Summer Grass/Crab Grass (Digitaria spp.). 

  4. What rate would you recommend mixing DSMA Selective Herbicide for spot spraying in a pasture situation?

  5. Q What rate would you recommend mixing DSMA Selective Herbicide for spot spraying in a pasture situ...... Read more
    Asked by Helen on December 27, 2023 7:45 am
    Answered by the admin

    DSMA Selective Herbicide only has rates for use in turf grass situations to be applied via Boom Application. This is to ensure the finest spray is applied evenly over the area. The Boom spray rate is 250-660mL in 4.5- 20L water per 100m2 on the turf couch. Some users use the DSMA as a spot spray as an 'off-label' recommendation. We have heard that a mixing rate of 30mL per 1 litre of water is used for this purpose. Care needs to be taken as the over-application of the product will result in phytotoxicity damage. Please read the 'directions for use' carefully before application. These are on the products screen under the 'SDS & Technical' tab.

  6. I have Kikuyu growing in my buffalo lawn, will DSMA kill the kikuyu without hurting the buffalo grass

  7. Q I have Kikuyu growing in my buffalo lawn, will DSMA kill the kikuyu without hurting the buffalo g...... Read more
    Asked by Pat on December 24, 2023 3:21 pm
    Answered by the admin

    DSMA Selective Herbicide is not explicitly registered to remove Kikuyu from Buffalo Turf. However, when applied to Kikuyu, severe damage to the grass is likely, and if repeat applications are made, then the Kikuyu should be removed.

  8. I have a newly sown fescue lawn and have some paspalum in it ,is there anything I can use to take it out?

  9. Q I have a newly sown fescue lawn and have some paspalum in it ,is there anything I can use to take...... Read more
    Asked by David Gay on October 5, 2023 7:03 pm
    Answered by the admin

    We do not recommend applying herbicides on newly seeded lawns due to the risk of damaging/killing any newly germinating grass or seed. Most selective herbicides registered for lawn use recommend application to 'established lawns'. 

  10. I have an established domestic lawn (450sqm) that is Australian native Microlaena stipoides (Weeping Grass) cut as turf from a native farm paddock. It has become infested with blackjack’s Bidens pilosa. Do you have a suitable herbicide to kill the blackjacks and other broadleaf weeds like thistle?

  11. Q I have an established domestic lawn (450sqm) that is Australian native Microlaena stipoides (Weep...... Read more
    Asked by William on August 19, 2023 11:13 am
    Answered by the admin

    To the best of our knowledge, no selective herbicides list Microlaena stipoides (Weeping Grass) as a compatible species for their use. As Weeping Grass is a grass species, selective broadleaf herbicides should be safe. However, a small trial is recommended before full application because this is off-label. For the control of Bidens pilosa (Blackjack), also known as Cobbler's Pegs and Farmers Friends, a selective herbicide such as 24D Amine 625 could be considered as it is registered to control many broadleaf weeds, including cobbler's pegs and various thistles.

  12. I have a Buffalo lawn, does DSMA Selective Herbicide help reduce or kill winter grass? I used Oxafert for 1 year, applying it every season but it did not work I am now removing it with my hands.

  13. Q I have a Buffalo lawn, does DSMA Selective Herbicide help reduce or kill winter grass? I used Oxa...... Read more
    Asked by YASIR on August 2, 2023 8:43 pm
    Answered by the admin

    DSMA Selective Herbicide is not registered for post-emergent control of winter grass (Poa annua). We recommend post-emergents, Surefire Propyzamide 500 SC Herbicide, and Metric Herbicide. Oxafert Herbicide and Fertiliser is a pre-emergent that will help control germinating weed seedlings up to 10 weeks after application. Oxafert will not control existing weeds.

  14. I have a seeded couch lawn that also has ryegrass. The couch has mostly taken over the ryegrass now, and it should die off in late spring, or summer. When will it be safe to use DMSA on the new lawn?

  15. Q I have a seeded couch lawn that also has ryegrass. The couch has mostly taken over the ryegrass n...... Read more
    Asked by Adam on June 9, 2023 3:58 pm
    Answered by the admin

    Typically, it is advisable to wait until the newly seeded couch grass has been mowed at least two to three times or has reached a certain height or maturity before applying any herbicides, including DSMA. Ideally, the couch should grow new stolons (runners) and establish new couch plants. This waiting period allows the grass to develop a well-established root system and become more tolerant to herbicide applications.

  16. Hi, I have small acreage with house yard of couch and paddocks of mixed grasses, mostly Rhodes for horses. I have successfully used DSMA Selective Herbicide for selective weed control in the couch. If I were to spot spray Mullumbimby Couch in the horse paddock, what is the withholding period before I can let the horses graze in the area again? Regards, Brent

  17. Q Hi, I have small acreage with house yard of couch and paddocks of mixed grasses, mostly Rhodes fo...... Read more
    Asked by [email protected] on April 27, 2023 3:30 pm
    Answered by the admin

    The Withholding Period Details (WHP) for DSMA Selective Herbicide advises that it is "Not Applicable when used as directed".  This WHP refers to animals destined for slaughter or other byproducts that are to be used for human consumption.  If you are questioning when is a safe time for animals to re-enter the paddock after application, removing them from the area until the DSMA Selective Herbicide has dried is considered the best practice.

  18. What is the recommended wetting agent to use with DSMA Selective Herbicide?

  19. Q What is the recommended wetting agent to use with DSMA Selective Herbicide?
    Asked by David on March 12, 2023 9:35 am
    Answered by the admin

    DSMA Selective Herbicide is formulated with an in-built wetting agent.  The DSMA 'directions for use' do not specify the need to add more wetting agents for better results.  You may choose to test the effectiveness of adding an extra wetting agent in your own 'off-label' trial, and a non-ionic wetting agent/surfactant would be adequate for this situation.

  20. I have tiff tuff and couch lawn (different areas) with paspalum, crowsfoot, nutgrass and summer/winter coming through (mainly on the couch). My questions: 1. Is DSMA safe on tiff tuff? 2. Will DSMA kill all of the above - if not, what else do I need? 3. What pre-emergent(s) would you recommend I put down?

  21. Q I have tiff tuff and couch lawn (different areas) with paspalum, crowsfoot, nutgrass and summer/w...... Read more
    Asked by Brett on January 29, 2023 8:24 pm
    Answered by the admin

    DSMA Selective Herbicide is registered as being safe to use on  'Turf Couch' (hybrids such as 'TifTuf' inclusive)  to control Paspalum (Paspalum Dilatatum)(Bahia Grass), Sedges, Mullumbimby Couch, Crab Grass, Nutgrass, and Summer Grass/ Winter Grass.  As a pre-emergent for your situation, we recommend Barricade or Spartan Herbicide or Onset 10GR Granular Herbicide as they are registered to control most of your problematic grass weeds in a variety of lawns (hybrid couches included), excluding nutgrass.

  22. Is there a withholding period for grazing animals (horses) after the use of DSMA Selective Herbicide, or is it unsuited for this application? The problem is paspalum taking over whole paddocks. The paddocks are rested for several months at a time. Thanks

  23. Q Is there a withholding period for grazing animals (horses) after the use of DSMA Selective Herbic...... Read more
    Asked by propestservices on January 26, 2023 5:27 pm
    Answered by the admin

    DSMA Selective Herbicide is not registered or recommended for use outside of specific turf/lawn situations. You may like to consider similar products such as Militate MSMA Herbicide that are registered for Paspalum control in non-crop situations, but bear in mind they may damage pasture grasses. There is also a 5-week withholding period for grazing sprayed areas. Spot spraying with a knockdown herbicide such as Glyphosate may be a better option as there are no withholding implications for grazing animals.

  24. I have a couch lawn with paspalum and other broadleaf weeds.  After spraying DSMA Selective Herbicide, how long should I keep my dogs and kids off the lawn?

  25. Q I have a couch lawn with paspalum and other broadleaf weeds.  After spraying DSMA Selective Herbi...... Read more
    Asked by DUSAN JACENKO on January 25, 2023 5:57 pm
    Answered by the admin

    The recommended time for keeping pets and children away from areas sprayed with DSMA herbicide varies depending on the specific product and application method. However, keeping pets and children away from treated areas is generally recommended until the spray has dried.

  26. Is DSMA Selective Herbicide applied with a 60cm boom sprayer on a Solo 424 or just with the single everyday nozzle set up on Couch? If so, at what mixing rate?

  27. Q Is DSMA Selective Herbicide applied with a 60cm boom sprayer on a Solo 424 or just with the singl...... Read more
    Asked by MICHAEL HANCOCK on January 19, 2023 8:58 pm
    Answered by the admin

    DSMA Selective Herbicide application is recommended via Boom Application, so the finest spray is applied evenly over the area. The Boom spray rate is 250-660mL in 4.5- 20L water per 100m2 on turf couch. Some users apply the DSMA as a spot spray as an 'off-label' recommendation. We have heard that a mixing rate of 30mL per 1 litre of water being used for this purpose. Care needs to be taken as the over-application of the product will result in phytotoxicity damage. Please read the 'directions for use' carefully before application. These can be found on the products screen under the 'SDS & Technical' tab.

  28. I have tall fescue and am looking to eliminate patches of couch growing in it. Will DSMA Selective Herbicide do this?

  29. Q I have tall fescue and am looking to eliminate patches of couch growing in it. Will DSMA Selectiv...... Read more
    Asked by Daniel on January 12, 2023 6:50 pm
    Answered by the admin

    DSMA Selective Herbicide is registered as being safe to use on couch and fescue. The only recommendation we can make is a non-selective herbicide, i.e. glyphosate, applied as a spot spray to the invading couch. However, this will also kill any fescue that it may have contact with.

  30. I have a good quality Qld blue couch lawn but it has large patches of crowsfoot. Could you recommend a product or products of yours so I can get rid of this problem forever?

  31. Q I have a good quality Qld blue couch lawn but it has large patches of crowsfoot. Could you recomm...... Read more
    Asked by Mark on December 7, 2022 6:17 am
    Answered by the admin

    We recommend Metric Herbicide for the selective post-emergent control of Crowsfoot Grass, Winter Grass and Summer Grass in certain turf species, including Queensland Blue Couch.

    .  

  32. Will DSMA control Bindii in common couch lawns in Western Australia? If not, what would you recommend?

  33. Q Will DSMA control Bindii in common couch lawns in Western Australia? If not, what would you recom...... Read more
    Asked by Shane on November 20, 2022 1:21 pm
    Answered by the admin

    DSMA Selective Herbicide is not registered or recommended to control broadleaf weeds, including Bindi, in couch lawns.  We recommend herbicides such as Kamba M, Bow & Arrow or Surefire Buffalo & Bindi as better options.

  34. I have Nullabor Couch with paspalum coming through and some Kikuyu. Will DSMA Selective Herbicide kill the couch? 

  35. Q I have Nullabor Couch with paspalum coming through and some Kikuyu. Will DSMA Selective Herbicide...... Read more
    Asked by James on October 15, 2022 7:58 pm
    Answered by the admin

    As Nullabor Couch is a hybrid of the couch family, it should be acceptable for use with DSMA.  As Nullabor Couch is not listed on the label, conducting a trial application in an inconspicuous area would be recommended before spraying the whole area.

  36. I have buffalo turf and want to spot-spray the Paspalum but the fine spray beads off it. Could I add a little bit of detergent with the DSMA to break the water surface so it will cover?

  37. Q I have buffalo turf and want to spot-spray the Paspalum but the fine spray beads off it. Could I ...... Read more
    Asked by Peter West on October 10, 2022 5:23 am
    Answered by the admin

    Using a detergent with herbicides is not recommended (ever). They are designed to remove grease and dirt from surfaces such as dishes and can have the same effect by removing the active ingredients from your spray mix. Detergents create foam and bubbles and leave an oily residue on what you have sprayed, and that is about it. We suggest reading our blog article 'Why detergents are not suitable wetting agents' to understand why they should never be used. Wetting Agents are specially designed and manufactured as companion products for most herbicides. We recommend using a suitable wetting agent with the DSMA for complete leaf coverage and penetration and to guarantee the best results.

  38. Will applying at a rate of 30mL DSMA per 10L of water kill the listed targeted species with a one-off treatment or will more be required? If it requires more than one treatment at the suggested rate of 30mL per 10L, what is the recommended volume of DSMA for a successful one-off treatment per 10L of water? Also, do recommended applications vary between lawn types i.e. is buffalo more susceptible to damage and/or death at more concentrated levels compared to that of green couch?

  39. Q Will applying at a rate of 30mL DSMA per 10L of water kill the listed targeted species with a one...... Read more
    Asked by Alex on September 22, 2022 9:49 pm
    Answered by the admin

    The DSMA Selective Herbicide has a varied rate of application. The lower rates reduce discolouration of the turf, but will require follow applications. Even when applied at the higher rates, some weeds may require a repeat spray. There is no guarantee that the weeds will be wiped out after one application, and a repeat spray program is done as necessary. Different application rates depend on whether it is the first or repeat sprays. Different types of turf are also sprayed at different rates, which can be found on the DSMA Selective Herbicide label (see the 'SDS and Technical' tab on the website).

    Turf Couch rates vary from 250mL-660mL in 4.5L - 20L of water, evenly applied over 100m2. 

    Buffalo Turf is applied at 250mL in 4.5L - 20L of water, evenly applied over 100m2. 

  40. Hi, how much DSMA Selective Herbicide should I put in a 10-litre knapsack? 

  41. Q Hi, how much DSMA Selective Herbicide should I put in a 10-litre knapsack? 
    Asked by Cameron Delaney on August 20, 2022 1:17 pm
    Answered by the admin

    A general mixing rate for DSMA Selective Herbicide is to mix 30mL per 1-Litre of water when applying as a spot spray.

  42. Will DSMA herbicide kill Dichondra in a Buffalo lawn in Australia? What concentration in water should be used? What is the rainfast period?

  43. Q Will DSMA herbicide kill Dichondra in a Buffalo lawn in Australia? What concentration in water sh...... Read more
    Asked by Peter Reimer on June 26, 2022 4:25 pm
    Answered by the admin

    DSMA Selective Herbicide does not claim control over Dichondra, so the effectiveness is unknown.  Unfortunately, selective herbicides containing 2,4-D are known to be effective on Dichondra, but these will also cause severe damage or death to Buffalo turf.  If you did want to undertake a trial or your own test 'off-label' then a rate of 30mL per 1-Litre of water should be sufficient.  There is no rainfast period listed for DSMA, so a minimum of 6 hours is advised.

  44. Can this kill Kikuyu in a Kikuyu lawn?

  45. Q Can this kill Kikuyu in a Kikuyu lawn?
    Asked by Russell on June 20, 2022 6:24 pm
    Answered by the admin

    Do not use DSMA Selective Herbicide on Kikuyu lawns as severe injury may result.

  46. Hi team, we have a purpose-built bowling green boom sprayer with a 75-litre tank. Our bowling green is approx 1500m2 in size with Tif Dwarf as our playing surface. What amount of DSMA Clear should we use to mix with that 75 litres of water? We can control the sprayer so that the 75 litres can be applied to the whole surface in one go, or alternatively, we can spray the surface twice (150 litres of water) if the water/DSMA ratio would be too strong by only spraying once. We'd like to avoid re-spraying again in 7-14 days if possible. Hope all this makes sense and appreciation for your help!

  47. Q Hi team, we have a purpose-built bowling green boom sprayer with a 75-litre tank. Our bowling gre...... Read more
    Asked by Craig Riddell - Volunteer Greenkeeper - Malanda Bowls Club, FNQ on May 13, 2022 4:48 pm
    Answered by the admin

    The total water rate applied is significant when using DSMA.  The amount of water that needs to be applied to a bowling gree per application is 300L.  This water rate would require four applications with your 75-litre spray unit and a mixing rate of 1.5L - 2.5L per 75L for each tank load.  Note that the lower rates are used to avoid any discolouration of the turf, but repeat applications may be required.  If you do not want to repeat the application, mix at a higher rate, but be ready for the chance of discolouration.

  48. It's this allowed to be sold to us residential turf owners?

  49. Q It's this allowed to be sold to us residential turf owners?
    Asked by Kylie Mirtschin on April 30, 2022 6:42 pm
    Answered by the admin

    DSMA Selective Herbicide is available to be purchased by residential households for use on their turf.  It is strongly recommended that the 'directions of use' are read, understood and followed before using.

  50. Will DSMA Selective Herbicide kill carpet grass?

  51. Q Will DSMA Selective Herbicide kill carpet grass?
    Asked by Peter T on April 23, 2022 5:15 pm
    Answered by the admin

    DSMA Selective Herbicide should not be used on Queensland Blue Couch, Carpet, Kikuyu or Centipede grasses as severe injury may occur.  Repeat application of DSMA to these grasses will eventually control and remove them.

  52. Is DSMA Selective Herbicide safe to use on zoysia?

  53. Q Is DSMA Selective Herbicide safe to use on zoysia?
    Asked by Kiel on April 14, 2022 11:19 am
    Answered by the admin

    Zoysia is not listed on the DSMA Directions for Use / Label, so we cannot say with certainty that it is safe to use. 

  54. How long after application of DSMA Selective Herbicide is it safe for pets to walk on?

  55. Q How long after application of DSMA Selective Herbicide is it safe for pets to walk on?
    Asked by Steven Bartlett on April 13, 2022 7:32 pm
    Answered by the admin

    After spraying DSMA Selective Herbicide, pets, livestock, children etc., should not be allowed back into the area until after the spray has completely dried.

  56. What mixing rate of DSMA Selective Herbicide would you recommend for the removal of crabgrass and nutgrass in a domestic lawn that is largely buffalo ?

  57. Q What mixing rate of DSMA Selective Herbicide would you recommend for the removal of crabgrass and...... Read more
    Asked by chrisks on April 10, 2022 12:54 pm
    Answered by the admin

    The mixing rate of DSMA Selective Herbicide to control Crabgrass and Nutgrass is 250mL – 660mL in 4.5L – 20L Water per 100m2 (All states except WA).  The lower rates will reduce discolouration but will require repeat applications at seven days and 14 days later.  Application is recommended via Boom Application, so the finest spray possible is applied evenly over the area.  Some users choose to apply as a spot spray as an 'off-label' recommendation.  We have heard that a mixing rate of 30mL per 1-Litre of Water has been used for this purpose, and care needs to be taken as the over-application of the product will result in phytotoxicity damage.

  58. Is DSMA used to kill crows foot?

  59. Q Is DSMA used to kill crows foot?
    Asked by Paul Le Cerf on February 14, 2022 9:31 pm
    Answered by the admin

    DSMA Selective Herbicide is used to control Crowsfoot Grass, Mullumbimby Couch, Nutgrass, Paspalum, Sedge, Summer Grass / Crab Grass in certain turf species.  Crowsfoot Grass is also known as Bull grass, Crabgrass, Dog grass, Goosegrass, Goosefoot & Iron grass.

  60. Is this appropriate to use DSMA Selective Herbicide on Canberra blend grass. Canberra blend is a combination of fescue and Kentucky blue grass.

  61. Q Is this appropriate to use DSMA Selective Herbicide on Canberra blend grass. Canberra blend is a ...... Read more
    Asked by James on February 13, 2022 8:24 pm
    Answered by the admin

    DSMA Selective Herbicide is registered for use in Bent or Fescue Turf (Golf Greens, Parks, Lawns & Tennis Courts) & is fine to use on these species.  DSMA does not include any reference to  Kentucky Bluegrass, so we can't guarantee the results or safety of the turf.  Some DSMA formulations registered overseas have Bluegrass on the label, but nothing in Australia.  You may choose to conduct an 'off-label' trial with DSMA on your turf blend, and if so, you should do this in an inconspicuous area.

  62. We've purchased this product to use on our couch lawn (domestic) to kill paspalum and nut grass. The mixing rates on the product label are extremely broad- could you suggest a more specific ratio?

  63. Q We've purchased this product to use on our couch lawn (domestic) to kill paspalum and nut grass. ...... Read more
    Asked by Jessica on February 11, 2022 6:56 am
    Answered by the admin

    The DSMA Selective Herbicide does have an interesting label that takes some figuring out when not being applied via boom application.  A general calculation that we recommend for customers using DSMA as a spot spray is 30mL per 1-Litre water.

  64. I have just this morning sprayed my lawn with dicamba M to control some varieties of week. I also have DSMA that I want to spray to control some other types of weed (nut grass etc.) in the same lawn. How long should I wait after spraying the dicamba M before spraying the DSMA to reduce danger to my couch lawn (not blue couch)? I can’t find anything online about the timeframe between such events. Cheers.
  65. Q I have just this morning sprayed my lawn with dicamba M to control some varieties of week. I also...... Read more
    Asked by Jamie on January 23, 2022 3:40 pm
    Answered by the admin

    The best practice is not to apply other herbicides or fertilisers to the treated area for 2-weeks after application.

  66. Hi. I have paspalum growth throughout my couch lawn. Is there a selective herbicide you can recommend?
  67. Q Hi. I have paspalum growth throughout my couch lawn. Is there a selective herbicide you can recom...... Read more
    Asked by Anil on January 21, 2022 10:37 pm
    Answered by the admin

    For Green Couch (Bermuda) lawns (not Qld Blue Couch) we recommend the following post-emergent herbicides to selectively remove paspalum - Monument Liquid Turf Herbicide (seedhead suppression), DSMA Selective Herbicide, Militate MSMA Herbicide & Monopoly MSMA Herbicide.  Pre-emergent options that are suitable for green couch and many other turf varieties include - Barricade Herbicide & Spartan Herbicide.

  68. Can i use DSMA on Tiftuf?
  69. Q Can i use DSMA on Tiftuf?
    Asked by Chris on January 10, 2022 7:53 am
    Answered by the admin

    Tiftuf Turf is a hybrid couch from the Cynodon dactylon (green couch) turf family, so DSMA should be fine to use.  Note that DSMA is recommended to be applied by boom spray application, so if spot spraying, some yellowing can occur due to the extra volume of chemical applied.

  70. Will this harm annual and perennial ryegrass?
  71. Q Will this harm annual and perennial ryegrass?
    Asked by jaime david on January 2, 2022 9:23 am
    Answered by the admin

    DSMA Selective Herbicide does not have any reference to Ryegrass safety on its label so we can't advise the safety of the product.  DSMA is safe to use on other cool-season grasses (fescue & bentgrass) so a trial may be worthwhile.

  72. Is DSMA Herbicide safe to use on Palmetto Buffalo? We want to eradicate patches of couch (wire grass?), creeping oxalis and kikuyu? Thank you
  73. Q Is DSMA Herbicide safe to use on Palmetto Buffalo? We want to eradicate patches of couch (wire gr...... Read more
    Asked by Jann on December 21, 2021 8:37 pm
    Answered by the admin

    DSMA Selective Herbicide is registered as safe for use on 'Buffalo Turf' so it should be fine on your Palmetto.  DSMA Selective Herbicide will control Paspalum, Summergrass, Mullumbimby Couch, Sedges, Crab Grass (summer grass) & Nut Grass.  It will not take out Couch or Creeping Oxalis and will only suppress Kikuyu.  Repeat applications will be required on the Kikuyu to eradicate it.  We recommend Buffalo, Bindi & Broadleaf Weedkiller for the Creeping Oxalis and other broadleaf weeds.  We are unaware of any products registered to selectively remove the couch from Buffalo Turf.  Painting or spot spraying Glyphosate/Roundup is an option but will also kill any buffalo it comes in contact with.  There are selective herbicides available that target grass species without harming broadleaf varieties (ie Fusilade & Cannonade), however, they do not have any claims when used in turf situations.  Buffalo is a broadleaf species of turf.

  74. I have a 3-acre property with Kikuyu grass however have a problem with paspalum. Will a one-off treatment affect the Kikuyu?
  75. Q I have a 3-acre property with Kikuyu grass however have a problem with paspalum. Will a one-off t...... Read more
    Asked by Kirk Bolte on December 18, 2021 9:23 am
    Answered by the admin

    DSMA is recommended not to be used on Kikuyu grass as severe injury may result.  You may decide on the spot spraying of the Paspalum, however, you should expect damage to the Kikuyu, discolouration and possible death.

  76. Will it kill off summer grass in legend couch lawn.
  77. Q Will it kill off summer grass in legend couch lawn.
    Asked by Ian Hitchman on December 14, 2021 3:43 pm
    Answered by the admin

    There are various options to remove summer grass (crabgrass) from legend couch selectively.  Legend Couch is part of the couch species (Cynodon dactylon), so selective herbicides suitable for use on green couches are safe to use.  As a post-emergent spray, DSMA HerbicideQuinstar Herbicide, Crowbar Herbicide & Prolan Herbicide.  As a pre-emergent application, Barricade Herbicide, Spartan Herbicide, Freehand Herbicide & Ronstar Turf Herbicide

  78. Is this safe to use on Qld Blue Couch?
  79. Q Is this safe to use on Qld Blue Couch?
    Asked by Jake on December 8, 2021 6:51 pm
    Answered by the admin

    Do not use DSMA on Queensland Blue Couch, Carpet, Kikuyu or Centipede grasses as severe injury may result.

  80. Will this herbicide kill off the Kikuyu grass that is invading my Santa Ana Couch?
  81. Q Will this herbicide kill off the Kikuyu grass that is invading my Santa Ana Couch?
    Asked by Ben on December 7, 2021 11:01 am
    Answered by the admin

    DSMA will suppress Kikuyu, so repeat applications will be required to eradicate it.  You might also like to look at Tribute Herbicide as it is also registered to suppress Kikuyu growing in couch turf.  There are some excellent testimonials in the Tribute brochure from turf specialists who used Tribute Herbicide for this purpose.

  82. Is DSMA Selective Herbicide safe to use on Empire Zoysia Grass?
  83. Q Is DSMA Selective Herbicide safe to use on Empire Zoysia Grass?
    Asked by Oscar on November 25, 2021 9:21 am
    Answered by the admin
    Zoysia is not listed on the DSMA Directions for Use / Label, so we cannot say with certainty that it is safe to use.  
  84. Hi team, 2 questions: 1. When can pets be allowed on the lawn post spraying? 2. When can you re-seed/overseed post spraying?
  85. Q Hi team, 2 questions: 1. When can pets be allowed on the lawn post spraying? 2. When can you re-s...... Read more
    Asked by Greg on November 17, 2021 9:53 am
    Answered by the admin

    After spraying DSMA Selective Herbicide, pets, livestock, children etc should not be allowed back into the area until after the spray has completely dried.  There is no specific mention of reseeding or oversowing on the label for DSMA Selective Herbicide.  However, as DSMA has a half-life in the soil of 55 days, which means that it will take 55 days for half the amount of DSMA to be completely degraded and released as carbon dioxide, we would not recommend trying to oversow before this time elapses.

  86. Is this product safe to use on wintergreen couch?
  87. Q Is this product safe to use on wintergreen couch?
    Asked by Jamie Stokes on October 14, 2021 9:05 pm
    Answered by the admin

    DSMA Herbicide is registered for use on 'common green couch' without any mention of the hybrid species including Wintergreen.  Wintergreen Couch is a hybrid green couch so it should be tolerant of DSMA.  As the variety is not specifically listed on the label we would recommend a small trial area be selected to ensure no damage occurs to be on the safe side.

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Disclaimer: This information and product advice is not intended to be advice or recommendations for any specific use or circumstance. You should seek specialist advice before using any product. Always follow the manufacturer’s guidelines. Specialist Sales liability is limited.

Host & Pest

Host Pest
Host & Pest
Bent Lawn Or Turf, Bowling Green Of Bent Grass, Bowling Green Of Common Couch, Bowling Green Of Fescue, Buffalo Grass Lawn Or Turf, Common Couch Lawn Or Turf, Fescue Lawn Or Turf, Golf Green Of Bent Grass, Golf Green Of Buffalo Grass, Golf Green Of Common Couch, Golf Green Of Fescue, Oval Or Park Of Bent Grass, Oval Or Park Of Buffalo Grass, Oval Or Park Of Common Couch, Oval Or Park Of Fescue, Tennis Court Of Bent Grass, Tennis Court Of Buffalo Grass, Tennis Court Of Common Couch & Tennis Court Of Fescue Crowsfoot Grass, Mullumbimby Couch, Nutgrass, Paspalum, Sedge, Summer Grass / Crab Grass

Tips For Use

Restraints:

  • Do not use the product on Queensland Blue Couch, Carpet, Kikuyu or Centipede grasses as severe injury may result.
  • Do not apply to dry turf during hot weather.
  • Do not water or cut grass for 24 hours after treatment.
  • Do not spray on windy days as drift may damage desirable plants.

Top 10 Turf Tips

Safety Directions:

  • Poisonous if absorbed by skin contact or swallowed.
  • May irritate the eyes and skin.
  • Avoid contact with the eyes and skin.
  • When preparing spray and using the prepared spray wear cotton overalls buttoned to the neck and wrist, a washable hat and rubber gloves.
  • After use and before eating, drinking or smoking wash hands, arms and face thoroughly with soap and water.
  • After each day’s use wash gloves and contaminated clothing.

First Aid:

  • If poisoning occurs, contact a doctor or Poisons Information Centre Phone Australia 131126.
  • Additional information is listed on the Safety Data Sheet (SDS)

 

Withholding Period

Withholding Period Details (WHP):

  • Not Applicable when used as directed.

SDS & Technical

DSMA Clear Selective Herbicide solution Label Download Pdf
DSMA Clear Selective Herbicide solution SDS Download Pdf
DSMA Clear Selective Herbicide solution Technote Download Pdf
Demolish DSMA Selective Herbicide solution Label Download Pdf
Demolish DSMA Selective Herbicide solution SDS Download Pdf

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