Grazon Pro Selective Weedkilller / Herbicide

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Use GrazonPRO® because:

    • It contains 60 g/L clopyralid + 240 g/L triclopyr. This combination provides excellent control of broad-leaved dock, curled dock, creeping thistle, spear thistle and common nettle and also has an effect on a large range of other weeds – see our weed list

    • It is one of very few products with a label which fully endorses the use via hand held application equipment

    • It is fast acting and controls a wide spectrum of weeds

    • It moves to the roots ensuring high levels of long-term control

    • Stock grazing can resume only 7 days after application (but longer if poisonous weeds such as ragwort are present)

    • It is very good value for money – 16 knapsacks from each litre of product when mixed in 10 litre batches

    • It is rainfast in only 2 hours and is very safe to grass.

Best Use Advice Spot treatment with GrazonPRO

    • GrazonPRO 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 GrazonPRO: face shield, gloves, coveralls and rubber boots

    • Apply at the rate stated on the label – for GrazonPRO 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.


    • Maximum number of treatments 1 per yr

    • Only use on permanent pasture or rotational grassland established for at least 1 yr

    • Do not apply where clover is an important constituent of sward

    • Do not roll or harrow within 10 d before or 7 d after spraying

    • Do not cut grass for 21 d before or 28 d after spraying

    • Do not use any treated plant material for composting or mulching, and do not use manure for composting from animals fed on treated crops

    • Do not apply by hand-held rotary atomiser equipment

    • Do not allow drift onto other crops, amenity plantings or gardens, ponds, lakes or water courses. All conifers, especially pine and larch, are very sensitive

Product Registration Number:
MAPP 15751

Active Ingredient:
240 g/litre triclopyr + 60 g/litre clopyralid

Pack Size:
1.0 Litre

Emulsifiable concentrate

Recommended Dose:
60 ml Grazon Pro in 10 L water

Maximum Total Dose:
One per year

Latest Timing:
7 days before grazing, 28 days before cutting

Water Volumes:
60 ml Grazon Pro in 10 L water

Spray Quality:
MEDIUM as defined by BCPC


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