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Diamond Super Concentrated Horse Tail and Mares Tail Weed Killer
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Product information
Specifications
Brand:
Diamond
- Diamond Weed Killer is designed to tackle Horse Tail weeds that are such a nuisance to eradicate.
- Contains 160g/L of 2,4-D+ Glysophate for a fast acting solution on all weeds including Horse/Mares Tail.
- This Horse Tail weed killer is predominantly a contact herbicide with some movement once applied to other areas of the leaf after the 2,4 D ingredient breaks down the leaf tissue, aiding transfer for a faster and deeper result.
- Controls tough weeds such as nettle, Ragwort, Horsetail and other broad-leaved weeds which may be resistant to just Glysophate.
- Will also kill and control Thistles, Oilseed Rape and other grasses.
- Approved for use domestic vegetation, orchards, hard surfaces, and green cover not being used for growing crops.
- Extends further than Glysophate alone and fast acting, one application for targeted weeds.
- Safe for trees in orchards.
- Suitable for hard surfaces, treatment before line application and fence lines (within 50cm of fence line), natural surfaces not bearing vegetation.
- Available in 1L or 5L pack sizes, with the 1L providing 2800m2 coverage and the 5L providing 14000m2 coverage.
- Apply using a watering can or boom sprayer.
Application:
- Use 1L of Weed Killer to 40L of water. (1:40 ratio)
- Apply when weeds are growing (between 1st March to 30th September)
- Spray on visible weeds
- Do not spray if it is raining, or rain expected within 6 hours.
- Avoid drift onto unplanned areas.
Boom sprayer application rates:
3-5L of Diamond Weed Killer in 200L of water.
Safe Use of Pesticides
"By law, everyone who uses pesticides professionally must have received adequate training in using pesticides safely and be skilled in the job they are carrying out."
Upon purchasing this product you and/or the end users are responsibile for ensuring that these products are used in line with industry Approved Codes of Practice. All operators must be trained and certificated in using and applying any Ministry Approved Professional Product (MAPP).
Use plant protection products safely. Always read the label and product information before use.
Please be aware that by proceeding you are purchasing a professional pesticide product. You must ensure the end user of these products complies with the DEFRA/HSE Code for the Safe use of Pesticides.
There are legal responsibilities covering the storage and use of professional use pesticides. These responsibilities are covered by The Food and Environment Protection Act 1985 (FEPA) and Control of Pesticide Regulations 1986 (COPR).
advise on our products and rates are available on request from our qualified staff
Reviews
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Barry Andrews
worked perfect and little damage to no damage to surrounding areas
22 Sep 2022
Linda Fowler
This a great product, easy to use and very effective. This is the second time I have bought it. Did the front garden and am now tackling the back.
The item arrived well packaged and speedily. Very Happy
10 Sep 2022
Martin
Completely successful and very easy to apply with pump sprayer
7 Sep 2022
Brenda Elizabeth Wicher
It’s expensive, but did the job beautifully. Used on a driveway to clear weeds etc. No problems.
Powerful, follow the instructions for use.
5 Sep 2022
Derek Wilson
This product does everything it say it will
8 Aug 2022
Dave W
I nearly didn't buy this product initially as it seems so expensive but spoke to someone who had used it and went for it. Really glad I did as it has almost completely got rid of a terrible infestation of mares tail and theres enough left to give it another go.
18 Jul 2022
mr DARREN BRENNAN
Good product did what it said it would do.
25 Jun 2022
Linda Fowler
Easy to use and very effective
23 May 2022
John Cunningham
good supplier fast and efficient supply amount correct for job and good value for money
4 Aug 2021
customer
Excellent product.
17 Jul 2021
Documents & Instructions
Frequently asked questions
How long after applying Diamond can you replant grass seeds? How long should I wait to pull out the mares tail before I plant grass seeds in the infected area? Thanks
The Mares Tail may require a repeat application. Please leave at least 6 months on the treated area before reseeding. Wait for the Mares Tail to fully die.
I was reading if you spray this on grass it will kill it. Have you any products that will kill mares tail and not grass? I have loads of mares tail in my garden and lawn
No, this weed killer will kill your lawn and the mares tail. Regular mowing will help remove the mares tail.
Is Diamond safe to use in between shrubs as long as the solution does not touch the foliage of the shrubs?
Yes, it should be safe as long as the solution does not touch the foliage on the shrub. Be really careful with your application.
Can this product be applied with a knapsack sprayer on a commercial property if the operator has a licence
This is a professional use weed killer and they have legal responsibilities
http://www.pesticides.gov.uk/guidance/industries/pesticides/topics/using-pesticides/codes-of-practice/codes-of-practice-home
http://www.pesticides.gov.uk/guidance/industries/pesticides/topics/using-pesticides/codes-of-practice/codes-of-practice-home
What are the mixing rates for knapsack spraying on various types of weeds eg. nettles, thistles etc… in advance thanks D. WHEELER
We would advise you to use 1L of the weed killer to 40L of water (ratio of 1:40).
Will this product eliminate Japanese Knot Weed
This can be sprayed onto the foliage of the Japanese Knotweed but is not approved for injection.
https://www.hygienesuppliesdirect.com/products/prod233662-gallup-490-high-active-5-litres
The Gallup Hi-Activ 490 super-concentrated Glyphosate weed killer is available and the application for Japanese Knotweed is 5.5ml mix with 1L water. The leaf would need to be sprayed to be effective on Japanese Knotwood. Re-apply until it dies.
https://www.hygienesuppliesdirect.com/products/prod233662-gallup-490-high-active-5-litres
The Gallup Hi-Activ 490 super-concentrated Glyphosate weed killer is available and the application for Japanese Knotweed is 5.5ml mix with 1L water. The leaf would need to be sprayed to be effective on Japanese Knotwood. Re-apply until it dies.
Noting this product will kill grass, do you know what effect it would have on astroturfed area, I have some mares tail coming through despite the membrane being down? It’s only small areas but wanted to check if this may burn the Astro? Cheers
This product can safely be used on artificial grass.
What is the dilution rate for killing mates tail/horse tail
The dilution required is 25ml in 1L water but reapplication may be required.
Hi, once sprayed with diamond, how long will it take to kill couch grass? Many thanks, steve
It can take a couple of weeks in good conditions but could take longer now that the temperatures are dropping cooler.
Built a large raised bed and Sprayed off the paddock grass within it then filled with soil. How long before I can plant fruit bushes in the soil above the sprayed grass please?
After using the Diamond Super Concentrated Weed Killer you would need to wait approximately 8 to 10 weeks before planting fruit bushes in the treated soil.
Can you please confirm what the drying time is?
It is dependant on the weather conditions but usually a couple of hours.
We have horsetail growing on an old tennis court. We are having it resurfaced but need to eradicate the horsetail first. Will this work and how long does it need to be left? I hope you can help!
The manufacturer recommends allowing for a treatment plan over the course of 12-18 months to completely eradicate the horsetail.
Does this kill brambles and bindweed?
Also do you need to trample horsetail or does it break it down and kill it straight from spraying?
Yes, this will work on brambles & bindweed. You do not need to trample before spraying.
Hello,
how long after the horse tail has been sprayed, can i dig the garden ready for planting
You would need to wait at least 6 weeks before replanting on the treated area.
Will this product work on a patio infested with ground elder
Yes, this will work on ground elder. Please use 200ml per 10L of water and it should only take a couple of days. Just ensure the leaf of the ground elder has a light covering of weed killer and isn’t dripping.
I want to put down 3” of soil and then lay turf after treating the whole garden with Diamond.
How long would I have to wait.
The Mares Tail may require a repeat application. Please leave at least 6 months on the treated area before laying new turf. Wait for the Mares Tail to fully die.
Hi - how long after the first application for horsetail weeds should the second application be made? Are further applications required thereafter and if so when? Thanks
Further applications would be required anytime there is any new growth that comes through.
Please can you tell me if Diamond Super Concentrated Horse Tail and Mares Tail Weed Killer is safe to use in a garden where dogs are going to be or do we have to leave it a certain amount of time for them to be allowed around the area? Thanks in advance
We would advise to keep the dogs off the treated area for 10 days.
During the winter months my asparagus bed has been cleared of dead asparagus matter,would spraying the weeds with Diamond be harmful to future asparagus cropping?
Yes, The Diamond Weed killer would remain present within the soil for up to 6 months and prevent anything new from being planted and growing effectively for that time due to the active ingredient 24D that it contains. If anything planted were to grow, it could also not be fit for consumption due to the presence of this chemical.
The label states the maximum number of applications per year is one. Does this apply to mares tail, which may need more than one application?
The Mares Tail may require a repeat application. Always follow the label instruction. Apply when weeds are growing (between 1st March to 30th September) Wait for the Mares Tail to fully die.
How many litres per acre?
The rate is 5L/Ha so 2L per Acre.
How well does it work on ground elder and how long b4 c results?
Thanks
It is a total weed killer so will work well on ground elder. In the right weather conditions, you should start seeing results in about 2 weeks.
I have mares tail growing from the base of a tree fern. Is this product safe to use here?
This is a total weedkiller and will also kill the fern if it is at the base of the tree. It would not be safe to use.
How would I dispose of any left over concentrated or diluted Diamond?
Please check with your local recycle centre.
Good evening, we bought a property in Sept 2023 and unfortunately have an infestation of Horsetail. We have a large back garden, 2/3 of which is stoned with landscape fabric underneath. Before identifying the weed I have made the mistake of trying to pull all the horsetail out by hand as ‘weedol’ didn’t work. Upon doing this it has made the problem worse! We have a row of large conifers at the back of our garden, and I wanted to know, if I treat the whole back yard with this product, wil
This will kill everything it touches please spray onto the foliage of the horsetail. It will absorb through the stem to the roots. Further applications would be required anytime any new growth comes through. Please be extra careful not to spray onto your trees. this is a total weed killer and will also kill grass and plants that are sprayed.
The landscapers have sprayed our garden area twice with this product. How long do we need to wait before it is safe for our dogs to walk on it?
We would advise to keep the dogs off the treated area for 1 day and also make sure it is fully dry.
Want to spray my whole garden to kill all weeds before returfing and planting new flowers etc etc. Will this do job and if so how long before I can returf? Also have a dog so how long must I keep her from the garden?
We recommend waiting 6 months before laying new turf and planting ornamental flowers. Keep animals away from the area until the weed killer has completely dried.
I have a lot of Horse Tail weed under an old privet hedge, can I use this weed killer under the privet hedge without killing the hedge?
Regards John
This product will damage and kill the hedge.
Will this kill off rampant bamboo?
no, but we would recommend the Gallup Hi-Aktiv 490 Super Concentrated Glyphosate Weed Killer. Please see the link below https://www.hygienesuppliesdirect.com/search?q=gallup+490
Can this be used on allotments where vegetables etc. will be grown?
The manufacturer advises this can be used on allotments but a period of 6 months must be applied before planting any vegatables.
Can this be used on dry ditches?
No.
Will this kill couch grass?
Permanently.
This will kill couch grass and any other plant or grass it touches. Depending on weather conditions and birds dropping seeds this may not be permanent.
Is this product safe to be used on horses pasture if kept off for few months. Weve recently moved to this yard and are pasture has alot on it .
The horses can only be returned to the treated area after a few months.
Hi I have a horse tail problem
I've removed foliage and some of the root,but not fully.
Will this product still eliminate the roots etc that still remain. Regards Trevor
You would need to wait for the regrowth of the horsetail and then spray the treatment directly onto the foliage.
Will this kill Gorse
Yes, the foliage will need to be sprayed.
I have horsetail growing on my new tarmac drive, is this safe to spray on new tarmac ?
Thanks
This can be used on hard surfaces but please do a test patch on an inconspicuous area first.
How long will the weed killer last in my sprayer mixed with the water and do i have to mix the whole litre with the reccomended amount of water if im spraying a small area
If pre-mixed it will only last a maximum of 2 days. We would recommend to only mix the amount required for the area you would be treating. Please do not mix and store the treatment.
Hi, we moved to a bungalow that had had the garden given a complete makeover. The old lawn had been dug up, new soil put down and then a new lawn. Unfortunately shortly after moving in we noticed Spanish Bluebells growing all over the lawn, We have tried several weed killers but nothing seems to work. Will this product get rid of them and will it damage the lawn? Thanks in advance.
This is a total weed killer and will kill the weeds and grass. You would require a selective weed killer that will not kill the grass.
https://www.hygienesuppliesdirect.com/enforcer-selective-weed-killer
https://www.hygienesuppliesdirect.com/enforcer-selective-weed-killer
I have horse tail coming up between my flowers will this kill my flowers as well
This is a total weed killer and will kill the Horse Tail along with your flowers.
Will this kill leylandii
This is a total weed killer and will kill Leyandii which have waxy foliage.
I have horse tail spreading from my neighbours garden, it is amongst some large shrubs and aser trees,can I spray on each single horse tail individually without harming my plants
Please be really careful and only apply to the Horse Tail. If the solution touches your shrubs or plants they will also die this is a total weed killer.
I have Horse/Mares tail growing in my rose beds.Would I be able to use this product without harming my roses.
Please be really careful and only apply to the Horse/Mares Tail. If the solution touches your roses they will also die.This is a total weed killer.
How long is it advised to leave cleared ground after treatment before planting new shrubs and trees? Is the wait period affected by weather?
After clearing the treated area please leave a minimum of 6 months before planting new shrubs and trees. The time period is not affected by weather conditions.
We have horsetail growing in a paddock. We intend to spray the paddock, harrow and reseed. Two questions: can we spray in very dry/drought like conditions and how soon after spraying can we harrow the paddock and reseed?
The Diamond will kill the Horsetail but it is a total weed killer and will kill the treated area including the paddock if applied. Treat any regrowth each year then after the last application leave a minimum of 6 months to reseed.
Do not apply in dry drought conditions.
We have the Thrust weed Killer that can be used on the paddock but this will not kill the Horsetail. After application you can harrow after 2 weeks and reseed after 6 weeks.
Do not apply in dry drought conditions.
We have the Thrust weed Killer that can be used on the paddock but this will not kill the Horsetail. After application you can harrow after 2 weeks and reseed after 6 weeks.
How long does this take before you can tell if it's working. Sprayed my horse tail 4 days ago and it still looks healthy
It will take around 2 weeks to have any effect but due to the dry conditions, it may take up to 4 weeks to show results.
I have an abundance of mares tails growing in my large pond and surrounding banks-I do not want to kill the water lillies of which there are many surrounded by the mares tails. Will the lilies be safe if I spray the tails in the pond?
No, this product is not suitable to be used near water or a pond. This will kill all fish and any aquatic life.
What is the smallest amount you can mix as i want to use a small handspray
We would recommend approximately 25ml of Diamond to 1L of water.
Do I need a licence to purchase or use this product please?
This is a professional used weed killer upon purchasing this product you and/or the end users are responsibile for ensuring that these products are used in line with industry Approved Codes of Practice. All operators must be trained and certificated in using and applying any Ministry Approved Professional Product (MAPP).
\nPlease be aware that by proceeding you are purchasing a professional pesticide product. You must ensure the end user of these products complies with the DEFRA/HSE Code for the Safe use of Pesticides.
\nThere are legal responsibilities covering the storage and use of professional use pesticides. These responsibilities are covered by The Food and Environment Protection Act 1985 (FEPA) and Control of Pesticide Regulations 1986 (COPR).
\n
Will horsetail regrow ? will it need more than one application?
The Horsetail can grow back dependant on the total coverage of the treated area.
You say diamond can be used in orchards but then you say it will kill privet and leylandii the horsetail/marestail is all under my apple trees . Would my apple trees be ok ?
This product can be used in orchards. The application rate is 25ml per 1l water. Be extra careful not to apply onto your apple trees.
I will be spray a slate area in my garden where mares tail is coming through from my neighbours. How long before our dog is safe to go out in the garden please?
Keep animals away from the treated area until the weed killer has completely dried. It will then be safe for your dog.
Is this product suitable for japanese knot weed on the foliage.
And is suitable for injection into japanese knot weed..
This can be sprayed onto the foliage of the Japense Knotweed but is not approved for injection.
Hi, will this kill penny wort growing in water courses or can you recommend one of your products that will? Kind regards
No, this is not suitable to be used in water. It will kill all aquatic life.
I intend to
Make a pond following the spraying of the horsetail. How long do I need to wait before doing this please
The manufacturer would recommend on waiting at least 6 weeks before making a pond on the treated area.
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