Agricultural Solutions UK




A herbicide with residual and contact activity for the control of black-grass, annual grasses and broad leaved weeds in winter wheat and winter barley


  • Particularly effective for black-grass control and the control of broad-leaved weeds
  • Low risk formulation, particularly useful where there is resistance to ALS inhibitors
  • Pendimethalin complements the grass weed activity of flufenacet
  • Strong pre-em allows flexibility for the post-em follow-up

Product Profile

Active ingredient(s) 60 g/l flufenacet and 300 g/l pendimethalin
FormulationEmulsifiable Concentrate (EC)
Pack size10 litres in outers of two
Crop(s) Winter wheat and winter barley
Weed spectrum A range of broad-leaved and grass weeds, including black-grass, chickweed, poppy, mayweeds, common field speedwell and ivy-leaved speedwell (for full list see label)
Maximum total dose 4 l/ha per crop
Maximum individual dose4 l/ha
Latest time of application Before third tiller stage (GS 23) and before 31 December in year of planting
Water volume200 litres per hectare
Aquatic buffer zoneLERAP B

Why Crystal®?

Crystal® has been found to give the best start to black-grass programmes, providing the crucial flufenacet partner as well as pendimethalin.

Crystal® is an emulsifiable concentrate containing 60g/l of flufenacet and 300g/l of pendimethalin. This herbicide has particular strength pre-emergence for the control of black-grass.

The flufenacet component in Crystal® provides the cornerstone for grass weed control whilst the pendimethalin component provides control of the key broad-leaved weeds: chickweed, poppy, mayweed, ivy and common leaved speedwell.

Pendimethalin complements the grass weed activity of flufenacet by providing strong residual control of later germinating weeds.

For best results with pre-emergence applications:

  • Timing is crucial. Spray within 48 hours of drilling ideally on to moist, clod-free and consolidated seedbeds where seed is adequately covered by a suitable depth of settled soil

  • Where drainage, seedbeds and seed depth are good Crystal® can be applied pre-emergence until the end of November. After which, apply Crystal® at one leaf of the crop, to minimise risk of crop damage by heavy rainfall

Excellent control of black-grass

In trials, the effectiveness of Crystal® was tested against Liberator®. Results showed a 9% reduction in black-grass headcount control relative to Liberator®.

Crystal® has been found to give the best start to black-grass programmes, providing the crucial flufenacet partner, as well as pendimethalin.

Control of ryegrass & brome

A pre and post-emergence spray programme is needed for best control of ryegrass and brome. Pendimethalin and flufenacet are two of the strongest pre-emergence actives, with pendimethalin having the best residual properties for these weeds. Having a strong pre-emergence active allows more flexibility for post-emergence follow-up.

 Technical Services Hotline +44 845 602 2553

Technical Services Hotline +44 845 602 2553

Technical Services Hotline



Libereator 0.6l/ha

Libereator 0.6l/ha

Crystal 4.0l/ha

Crystal 4.0l/ha

Source: data from BASF and independant trials

Real Results: Arable Weed Control

Real Results: Arable Weed Control

Be part of the Real Results Circle to learn more about how Crystal® can deliver greater yield for your crops

Working with our independent industry partners as well as BASF technical advisors, receive impartial advice and tips for managing arable weed control.

Find out more
Stomp® Aqua

Stomp® Aqua

Stomp® contains pendimethalin and is commonly used for pre and post-emergence weed control in a range of crops.

Discover Stomp® Aqua

Compatibility list

Click here to take a look at our latest compatbility list

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