New land brings tough target for Ethos (propoxycarbazone-sodium). Ahead of his main cereal fungicide treatments Suffolk farmer/contractor John Collen, who grows 1200ha (3000 acres) of arable crops from White House Farm, Gisleham near Lowestoft, tidies up a couch infestation (inset) in 12ha (30 acres) of Einstein wheat. “Ideally I would have used Roundup earlier, but we didn”t have the field then,” he explains.