Introduction
Andrew Williamson has low black-grass levels compared to farmers further east but is still wary of the threat it poses. Whenever he crop walks and rogues he spots one or two black-grass plants so he knows he is only one or two seasons of bad management away form a serious problem.
He grows two winter then two spring crops in rotation as part of his control programme and takes a very detailed approach managing individual fields and even areas within fields according to black-grass level. For 20/21 the focus field is growing spring barley.