MAPP 18578 / PCS 05394

Synero is a selective herbicide for controlling invasive species, scrub and deep-rooted perennials in amenity grassland areas. It contains aminopyralid and fluroxypyr.

Good leaf coverage will enable the active ingredients in Synero to penetrate the waxy surface and move to the plant’s roots, delivering high levels of control over a wide range of invasive species.

  • Fast acting - rain-fast in only one hour
  • Versatile - suitable for use on amenity grassland, including roadside verges and rail embankments
  • Controls difficult species - weeds such as japanese knotweed and ragwort
  • Low application rate - offer a high level of control with less product.

Product Features

Synero is a selective herbicide for use with a conventional knapsack or boom sprayer.

It is supplied in 5-litre containers.

Active ingredients

Synero contains 30 g/l aminopyralid (present as 36 g/l aminopyralid potassium) (3.5% w/w) and 100 g/l fluroxypyr (present as 144 g/l fluroxypyr-methyl heptyl ester) (14.14% w/w).

Availability: In stock


Synero is a registered trademark of The Dow Chemical Company (“Dow”) or an affiliated company of Dow.

Call 0800 0324352 to order

Application rate(s)


Weeds controlled Application Rate (One application per year). Knapsack Dilution Rate
Broad-leaved dock, curled dock, creeping thistle,
spear thistle, japanese knotweed, common nettle, creeping buttercup,
mugwort, ragwort and bramble
2 litres per hectare 100ml in 10 litres of water


Selective herbicide for perennial and herbaceous weeds.
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Use herbicides safely. Always read the label and product information before use.


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