Synero 5l

Synero 5l

Synero contains aminopyralid which requires a Stewardship Agreement to be fulfilled as a condition of sale. If you are a professional user who wishes to buy this product contact a BASIS qualified technical sales advisor on
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Synero 5l - Mapp No. 14708




Synero contains aminopyralid which requires a Stewardship Agreement to be fulfilled as a condition of sale. If you are a professional user who wishes to buy this product contact a BASIS qualified technical sales advisor on 01902 440250.
This product is not available to amateur users.




Active Ingredients: A water in oil emulsion containing 30 g /litre (3.5% w/w) aminopyralid (present as 36 g/litre aminopyralid potassium) + 100 g /litre (14.14% w/w) fluroxypyr (present as 144 g/litre fluroxypyr-methyl heptyl ester).

Why use Synero?


Weeds controlled by Synero Herbicide
Synero is a fast acting herbicide for the control of perennial broad-leaved weeds including JAPANESE KNOTWEED, RAGWORT, BROAD-LEAVED DOCK, CREEPING THISTLE, SPEAR THISTLE, COMMON NETTLE, CREEPING BUTTERCUP, DANDELION, MUGWORT and BRAMBLES in amenity grassland.
  • Effective control of tough and invasive weeds including Japanese Knotweed, Ragwort and Brambles
  • Can be used on all established amenity grassland with the exception of airfields
  • Favourable COSHH assessment
  • Virtually no odour
  • Rainfast in 1 hour
  • Safe to grass
  • Outstanding levels of translocation gets Synero deep into the roots of the plant
  • Low dose rates




Synero is approved for use under powerlines, central reservations, embankments and on railway embankments

Industrial locations where Synero Herbicide is approved for use


Areas where Synero can be used


Perennial Weed Control on Amenity Grassland, on railway embankments, industrial areas, under powerlines, cemeteries, utilities, parkland, around greenkeeper sheds, golf course roughs and areas of grassland that have no agricultural interest.


Rates of use


Broadcast Application:
  • Apply at 2.0 L/Ha in 200-400L of water for the control of Broad-leaved Dock, Curled Dock, Creeping Thistle, Spear Thistle, Common Nettle, Creeping Buttercup, Dandelion, Mugwort, Japanese Knotweed, Ragwort and Bramble.
  • Synero should be applied in a spray volume of 200 litres of water per hectare to give good coverage of the weeds.
  • A higher water volume of 250-400 litres of water per hectare may be required where the weed population is high and the grass is dense at the time of application.

Spot Treatment:
  • For localised treatment using a suitable lance from a knapsack or tractor mounted sprayer use a solution of 100 ml Synero per 10 litres of water. The weeds should be thoroughly wetted with the spray solution but spraying until "run-off" will decrease activity. The use of anvil nozzles is recommended to prevent drift. Care should be taken to avoid local overdosing.


Only use Synero on permanent grassland that has been established for at least one year. Do not apply the product overall where clover is an important part of the sward. Clover will be killed by application of Synero. Do NOT spray in drought, very hot or very cold conditions.


Aminopyralid Stewardship agreement conditions need to be met, for further information regarding Synero, please contact our technical sales team on 01902 440250.


Delivery charge (if applicable) applied at checkout. Next working day delivery is available on this product, as an option on orders placed before 12 noon - excludes festive season & bank holidays. Please note deliveries to Highlands, Cornwall and more remote areas may take longer. Surcharges apply for non mainland locations, call for more information. More delivery info


Please Note: If you have any access restrictions for lorries or large vehicles please speak to our sales team on 01902 440250.


Collection from our Telford, Shropshire, Trade Counter is available for this product. More info on collections

The purchaser and/or end users are responsible for ensuring that these products are used in line with industry Approved Codes of Practice. All operators must be trained and certificated in using and applying any Ministry Approved professional product.

Please be aware that by proceeding you are purchasing a professional pesticide product.

You must ensure the end user of these products complies with the DEFRA/HSE Code for the Safe use of Pesticides:

"By law, everyone who uses pesticides professionally must have received adequate training in using pesticides safely and be skilled in the job they are carrying out."