For far too long the control of Ragwort has been haphazard, unreliable and costly, that is until now. Barrier H is an innovation in Barrier H can be applied at all stages of growth. Unlike any other spray, Barrier H can be sprayed onto flowerheads only to stop the seeding process straight away. Ideal for Councils, Highway Authorities and Network Rail faced with complaints from neighbouring landowners. This Environmentally Friendly and Effective all year round control for Ragwort, MAPP no. 10136, is sold as a ready to use spot spray in a 5L container with applicator gun. Within hours of application, small rosettes are dead – right through to the roots.