How much pre-em control in a bad black-grass situation?

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On difficult black-grass land – Oxfordshire clay in this case – high levels of early control are essential otherwise the crop can get overrun come June. In this case a robust programme of Liberator (flufenacet + diflufenican), prosulfocarb, pendimethalin and tri-allate has given a good level of control. The cost of the programme is clearly quite high, but it is justified by the level of control on land that has a history of bad problems. So far, the land is comparatively clean compared to previous years as Ben Giles shows:

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