Powdery mildew of barley and its control

Powdery mildew is believed to be the most important disease attacking barley over a large part of the world. Recent experiments with fungicides have indicated that losses due to the disease arc generally greater than had been suspected. The discovery of a systemic fungicide, which can be applied to the crop as a seed-dressing, a granule or as a spray, promises greatly improved control. The adoption of cultural measures and the use of resistant varieties offer an integrated approach.