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Barrier H (ragwort control) - (inc. FREE applicator)


Fully licensed, (MAPP:10136) environmentally friendly agricultural herbicide that destroys ragwort in record time. Not affected by frost - use all year round. Ready to use spot spray with applicator gun. Keep animals off treated areas for 2 weeks or until the plant is completely dead and any remaining debris removed. Always read the label and use pesticides carefully.

5 litre spray

Further Info


Barrier H (ragwort control) - (inc. FREE applicator)


Destroy Ragwort in record time with Barrier H. Designed as a spot spray treatment, it can be used ALL YEAR ROUND even in winter.

Applied to flower heads, it will stop the seeding process.


Note: The purchaser or end users are responsible for ensuring that Barrier H is used in line with industry approved Codes of Practice.


Barrier H will destroy ragwort at all stages of growth and any time of year, but it is more cost effective to treat when at small seedling stage.


The stems of larger plants and flowering plants become thick and woody and more difficult to penetrate with Barrier H. The whole of the plant has to be covered with Barrier H and so flowering stage is not a good time to apply.


Winter application is a good time to apply Barrier H because Ragwort is easily visible. Traditional weeds and grasses die back and Ragwort seedlings and re-growth from older plants appear.

Ensure the whole plant is well wetted but not to the point of run off. This especially applies to large flowering plants - the WHOLE plant has to be wetted.



Exclusion From Grazing:

Ensure that you apply Barrier H to the whole of the Ragwort weed.


After application, we recommend that animals are kept away from treated pasture for 2 weeks, or until the ragwort is completely dead and any debris (with more mature plants) has been removed. This is not because Barrier H is in any way harmful, but, because the dying ragwort becomes palatable and dangerous to animals.


Remember the root is the last part of the plant to die, so be careful not to remove any dead tops too soon.



Cutting or Pulling:

Time spent digging, cutting or pulling often results in encouraging the spread of Ragwort. Tiny pieces of root left behind can lead to the growth of bigger and stronger plants.

Flowering Ragwort:

Barrier H can be applied to flowering Ragwort but re-growth may occur especially in moist conditions. Apply Barrier H directly to the whole of the plant to help prevent the seeding process.

Spot Treatment:

Barrier H comes in a 5L container with spray attachment and is used as a spot treatment for Ragwort. It is easy to apply holding the container handle in one hand and the spray gun in the other. One single squirt is sufficient to cover a tiny seedling.


Ragwort Seeds can lay dormant in the soil for up to 20 years. Each plant can produce up to 150,000 seeds with a 70% germination rate.

Summer application:

Late June, July and August are normally when Ragwort flowers. For every flowering Ragwort, there are around 10 small seedlings or rosettes close by which need to be treated before they too become large flowering plants. Flowering plants are more difficult to kill and so it is essential that Barrier H is applied to the whole of the Ragwort but not to the point of run-off.

Winter Ragwort:

Autumn, Winter and Spring are when rosettes are most visible. Grasses die back and most other weeds die off leaving the bright green Ragwort easy to see and to treat. However, to achieve the very best results, Barrier H is best applied in dry conditions.

Patent: European Patent No: 1069828

IT Works!


Barrier H (ragwort control) - (inc. FREE applicator)



'Languard have been using Barrier H as part of our ragwort control programmes for several years. It is a highly effective tool in the campaign against ragwort, and we shall continue using and recommending it'

LanGuard Ltd., Specialist Weed Management for Highways and County Councils



'By far and away the best Ragwort treatment I have come accross. Safe to both operator and environment and totally effective'

Johnny Peter-Hoblyn, Stud Manager, Shadwell Estate Company


'The results are just as good as you predicted and the Ragwort seems to be killed almost overnight'

Michael Elwick, Centre Manager, ILPH


'I would just like to say that your Barrier H has been an excellent product in controlling the ragwort within the ranges. It works extremely quickly and the applicators are easy to use. There is no doubt that we will be using Barrier H in the future on this 7,500 acre MOD estate.'

Major M H Burgess, ARMY Range Control, Lulworth Camp, Wareham, Dorset.


I used Barrier H during the trial period at Roudham Stud. In both damp and dry weather there was the same effect instant kill within several hours. This year there is no sign of regrowth. Tim Phillips, Roudham Stud, Roudham, Norfolk.


An amazing cure, to a very big ragwort problem. I have 87 acres across the Salisbury plains, up and down dale. For 9 years we have tired to get rid of this plant, but every year it comes back with force. For the first year using Barrier H, the plains have not been a blaze of yellow, from the dreaded Ragwort. As we keep a large number of horses grazing on the plains, it has always been very worrying for us and it is nice to know there is little of the plant left, and very reassuring to know, if it does come back, we will be ready with the Barrier H Spray - Lesley Miles, White Horse Equestrian Centre, Westbury, Wilts.


I felt I must write and congratulate you on the Barrier H ragwort spray; you have saved me from insanity! The first summer following the purchase of my property I found to my horror my 3 acres looking like a carpet of yellow. The first year I removed 50 bags, the second 40, I broke 5 trowels and it nearly broke me. Then I saw an article about Barrier H. I used over two containers and was so amazed that I rang my friends and my mother! I even went and sprayed a sample area at a friends. THANKYOU its well worth the money, if your company had shares I would invest all my money in it, what an excellent product, congrats to you.

Miss D Masters-Brown, Alpington, Norfolk.


I am not in the habit of writing to companies, mainly due to lack of time. Suddenly, I find, I have time to ride everyday, paint gates, fences and do all sorts of things. I have been digging our ragwort on some land that has been set-aside for several years. I finally had to concede that the ragwort was getting the better of me and in desperation purchased Barrier H. Within hours of spraying, the ragwort has disappeared, leaving only small brown circles to mark its passing. It is almost like a miracle, I can hardly believe it! I shall sing the praises of this amazing product at all the horsey related gatherings that I attend.

Mary Potter, BHS District Rep. For Romney Marsh, Kent.


I have to admit that when I first read about your product I was very sceptical. I was at a loss to understand how a plant-derived spray could be effective and work to my benefit. The alternatives remained traditional toxic sprays, which are dangerous to horses and they don't seem to stop the plants returning on mass every year! Thus I cautiously ordered your Barrier H. It worked! I have found the advantages of using Barrier H numerous and the ragwort was killed very quickly, plants turned black and 24 hours withered and brown - Amazing to see! I was very impressed and would have no hesitation in recommending it as a very effective way to help in the fight against this horse killer!!

Miss S Shaw-Browne, Sherwood Forest Livery Stables, Mansfield, Notts.


What an excellent product Barrier H is. We used it for the first time on our paddock and within a day the rosettes had wilted and two weeks later there was no sign of the plants at all. This is going to make our paddock maintenance so much easier as we can deal with the rosettes as they appear. Well done the team at Barrier for another excellent product.

Jenny Haywood, Petersfield, Hampshire.


I have worked tirelessly to eradicate this awful ragwort, that we inherited. I have, through blood, sweat and tears reduced it but every year it tries again to give us the run around. In despair we bought Barrier H with the knowledge that all of your products have been excellent for horse care could be as good for pasture care? Well, I think so, it really seems to be working and so far I'm extremely impressed.'

Carolyn Cummings, Penrith, Cumbria.



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