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Download PDF The launch of Crystal 20 years ago introduced a new mode of action on grassweeds and a new timing. But as CPM discovers, it was the mindset change it brought that heralded a revolution in blackgrass control. It was the start of a planned, programmed approach to blackgrass control. By Tom Allen-Stevens Over the past 20 years, there’s little doubt the approach growers have taken to blackgrass control has shifted significantly. Understanding of resistance and population dynamics is far greater, drill and cultivation technologies, as well as how they’re used, have evolved. But there’s one product that has remained a trusted mainstay backbone of the autumn herbicide programme. Crystal was launched by BASF in 2001, the first herbicide for cereals containing flufenacet. Partnered with pendimethalin (PDM), already established in the autumn residual herbicide programme, the combination heralded a new approach to grassweed management, notes Andy Jones, who was BASF’s UK manager for herbicides when it was launched. “At the time, blackgrass couldn’t have been given greater encouragement to become a real problem on farm,” he recalls. “There was a tendency to drill earlier, the straw-burning ban had come in and non-inversion tillage – mixing the seed through the…
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