19 May 2000

Strobs on mildew

DONT use strobilurin fungicides on mildew without the support of a specific mildewicide – even in flag leaf sprays. Doing so will actively select for any resistant strains of the disease, warns John Sellars of Dow AgroSciences. "The FRAC guidelines still stand, even at this late stage," he says. "That means cereal growers looking to control septoria and mildew with T2 sprays should still aim to tank mix strobilurins." &#42