Barrier H 5 L - Natural Ragwort Control

As low as £49.95
In stock

Barrier H weed killer gives fast knockdown of ragwort.

No mixing needed - ready to use Barrier H will control ragwort in paddocks & amenity grassland

NOTE: Barrier H is available with or without an applicator gun.

Barrier H herbicide controls ragwort fast. A highly versatile organic weed killer Barrier H can also be used for controlling broad-leaved weeds.

Barrier H is mainly used for the troublesome weed ragwort, which can kill horses and is often difficult to control by cultural methods alone. It's an environmentally friendly natural weed killer and uses the natural plant extract citronella to give a total weed kill right down to the roots if young plants are targeted.

Barrier H can control ragwort at all stages of growth, 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 the best time to apply.

Coverage:                 Up to approx. 200 large plants or 1,600 seedlings      

Ragwort spray weed killer

Key points:  

  • Kills broad-leaved weeds including ragwort (can be applied year round to ragwort)
  • Fast acting - small ragwort rosettes show signs of death within hours
  • Ready to use - can be supplied with a handy spot-spray gun. Simply attaches directly to the 5 L bottle
  • Can be sprayed onto ragwort flowerheads to stop the flowering - seeding process & spread
  • Fast kill – apply thoroughly to leaves until the point of run-off 
  • Citronella oil is a natural extract, distilled from the grass: cymbopogon winterianus
  • Re-apply as necessary
  • Avoid drift or spraying onto grass
  • Often used by Councils, Highways and Network Rail for control of ragwort

Application notes and guidance:

  • Accidental drift or spraying on grass may cause temporary bleaching but most species will recover quickly
  • After the application of Barrier H ragwort killer, we recommend that animals are kept from away from grazing grassland and paddocks for up to 2 weeks. Do not put grazing animals back until the ragwort is completely dead and any rotting plants are removed. This is not because Barrier H is hazardous, but because dying ragwort becomes more palatable and dangerous to grazing animals.
  • The ragwort root is the last part of the ragwort plant to die, so take care to not remove any dead plant tops too soon.

Recommended safety clothing / PPE as per the MSDS; protective gloves, eye protection

More Information
Warning Message Yes
Application Rate

Hand-held Application Rate

Ragwort & broad-leaved weeds Ready to use
Show Calendar Yes
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