Blackgrass - the scourge of cereal crop growers across the country - is seemingly out of control and herbicide resistance is spreading like wildfire. But why the big fuss? Surely it's a weed just like any other? Actually, no. According to agrochemicalcompany Agrii, its effect isn't to be underestimated. For every 100 ears of blackgrass in lsq m of crop, you can expect wheat yields to be knocked by It/ ha. At the firm's trials site near Huntingdon, Cambridgeshire, populations vary from four ears/ sqm to 400 ears/sq m, the latter potentially resulting in yields being slashed by 4t/ha. Why can't we just spray it off?
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