Crystal®
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.
Autumn annual meadow grass and BLW control
Early control of AMG and BLW’s are vital to optimise crop yield. These weeds compete strongly with newly emerging crops for moisture, nutrients and light. Left uncontrolled they can significantly reduce yield.
Crystal® and Picona® applied pre-emergent provides a good start to weed control as they combine active ingredients with reliable AMG performance and BLW control with residual activity. This is critical for AMG as it germinates throughout the growing season, completing its lifecycle, including seed set, in only 6 weeks.
As part of a resistance management strategy, do not rely solely on post-emergent applications of contact acting ALS herbicides for BLW control as incidences of resistance to this mode of action have been increasing, so efficacy cannot be guaranteed. Additionally, ALS inhibitors with activity against AMG, such as Othello are not registered for use on winter barley.
Suggested products and mixtures for use either pre or early post-em
| Weeds | Pre-em OR | Early Post-em (1-2 lvs) |
| AMG, Chickweed, Poppy, Pansy, Speedwells, Fumitory, Crane’s-bill, Dead nettle | 2.0 l/ha Crystal® 2-3 l/ha Picona® 2-2.9 l/ha Stomp® Aqua | 2.0 l/ha Crystal® 3 l/ha Picona® 2.9 l/ha Stomp® Aqua |
| High levels of AMG, RSMG Mayweed, Groundsel, Cleavers, Charlock, vol OSR | 1.5-2.0 l/ha Crystal® 2 l/ha Picona® 1.75-2 l/ha Stomp® Aqua Mix any of the above with either of; 2 l/ha Defy* | 2.0 l/ha Crystal® 2 l/ha Picona® 2 l/ha Stomp® Aqua Mix any of the above with either of; 0.75 l/ha Zypar |
| Vol Beans | 2.0 l/ha Crystal® 2 l/ha Picona® 1.75-2 l/ha Stomp® Aqua Mix any of the above with either of; 75 ml/ha Lector 0.75 l/ha Zypar |
Notes:
- These mixes can be applied pre, peri or post-em in winter wheat but when spraying post-em in barley, wait until the crop has 2-3 leaves before application
- * Do not use mixes with Defy® peri-emergence in winter barley
- Max 2,000 g/ha total pendimethalin dose in season and 1,320 g/ha max individual dose
- Some transient yellowing of the crop may follow use of Picona® or Crystal® + DFF, especially after peri/post-emergence applications. Effects are transient and have no impact on yield
- Crystal® can be applied pre-em until the end of November. After which, apply at one leaf of the crop, to minimise risk of crop damage by heavy rainfall.
If you have any queries or require further information, please contact you local BASF agronomy manager. Contact details can be found at www.agricentre.basf.co.uk
Alternatively, call our technical hotline: 0845 602 2553
Crystal® contains flufenacet and pendimethalin. ®agriculture.basf.com/enPicona® contains picolinafen and pendimethalin. ®Stomp® Aqua contains pendimethalin. Liberator® contains flufenacet and diflufenican. Hurricane® contains diflufenican. Liberator contains flufenacet and diflufenican. Defy contains prosulfocarb. Crystal, Picona and Stomp are registered trademarks of BASF. All other products are those of other manufacturers where proprietary rights may exist. Always read the label and product information before use. For further product information including warning phrases and symbols refer to
