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  Grazon 90 Farmer Information Leaflet Docks    Thistles  Nettles 

Active Ingredient: 240 g/litre triclopyr + 60 g/litre clopyralid
Pack Size: 1.0 Litre
Formulation: Emulsifiable Concentrate
Maximum Individual Dose: 4.0 L/ha
Maximum total Dose: 4.0 L/ha (one application per year)
Latest timing: 7 days before grazing
14-28 days before cutting
Water Volume: 300-400 L/ha
Knapsack Rate: 60 ml in 10 L water
Spray Quality: Medium as defined by BCPC













Grazon 90 provides excellent control of broadleaved dock, curled dock, creeping thistle, spear thistle, common nettle, bramble, broom and gorse in established grassland. Grazon 90 has been formulated specifically for spot treatment.

After application with Grazon 90, livestock/horses should be excluded for at least 7 days and until the foliage of any poisonous weeds has died and become unpalatable and 28 days before cutting.

Apply through Knapsack only, using a rate of 60 ml Grazon 90 in 10 L of water.

Applications should only be made between 1st March and 31st October.

knapsack spraying 

Best Use Advice Spot treatment with Grazon 90

  • Grazon 90 is a professional use product, therefore ensure all knapsack operators have necessary PA1 and PA6 qualifications
  • Service and maintain knapsack sprayers regularly and calibrate before use
  • Fit an appropriately sized nozzle to deliver a medium to fine spray pattern
  • Users should wear appropriate PPE when mixing and applying Grazon 90: face shield, gloves, coveralls and rubber boots
  • Apply at the rate stated on the label – for Grazon 90 this is 60 ml in 10 L water
  • Apply chemical to a dry foliage area, avoid applications to disease or pest ridden targets as this will affect the efficacy of the spray
  • Spray to thoroughly wet the foliage of the target weed, but avoid application to the point of run-off.


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