Diamond Horse Tail Killer 1L

Diamond Horse Tail Killer 1L is a professional-grade, dual-action herbicide designed specifically for the control of Mares Tail (Equisetum arvense), one of the UK’s most persistent and difficult weeds. Combining 240 g/L glyphosate with 160 g/L 2,4-D, this systemic weedkiller penetrates leaves and stems to deliver deep root control and long-lasting weed suppression.

Trusted by landscapers, councils, maintenance teams, and industrial site managers, Diamond Horse Tail Killer is also highly effective against Japanese Knotweed, ragwort, bracken, dock, nettles, thistles, and other perennial and invasive weeds, making it an essential solution for professional weed management across hard surfaces, amenity areas, and industrial sites.

Features & Benefits

• Dual-active formulation: 240 g/L glyphosate + 160 g/L 2,4-D for enhanced weed penetration

• Targets Mares Tail / Horsetail – one of the toughest invasive weeds in the UK

• Broad-spectrum control: Works on Japanese Knotweed, ragwort, bracken, dock, nettles, and more

• Professional use: Suitable for boom sprayers for large area coverage

• Safe for precise application around fruit trees

• Effective on hard surfaces: Pavements, paths, roadways, industrial sites

Applications & Target Weeds

• Hard surfaces: Pavements, paths, roadways, industrial sites

• Amenity areas: Parks, gardens, and public spaces

• Around trees: Fruit trees and hedgerows with careful application

• Weeds Controlled:

  • Mares Tail / Horsetail (Equisetum arvense)

  • Japanese Knotweed

  • Bracken, Ragwort, Thistles, Nettles, Dock

  • Couch grass, Bindweed, Gorse

  • Pavement weeds and general annual & perennial weeds

  • Rhododendron, Sycamore saplings

Application Rates & Coverage

• Apply when weeds are actively growing and in full leaf (spring to early autumn).

• Avoid application in frost or heavy rainfall.

Active Ingredients

• 2,4-D: 160 g/L

• Glyphosate: 240 g/L

Period of Use

• Spring, Summer, Autumn (during active weed growth)

Professional Use & Legal Compliance

Diamond Horse Tail Killer 1L is for professional use only. Operators must hold PA1 and PA2/PA6 certificates under UK pesticide legislation. All applications must follow the Code of Practice for Plant Protection Products, with proper PPE, buffer zones, and drift management. Observe LERAP Category B restrictions near water. MAPP No.: 19846