Barley Powdery Mildew

Symptoms mainly affect the leaves, sheaths, stems and ears, and their symptoms are similar to wheat powdery mildew.

Pathogen Blumeria graminis (DC.) Speer = Erysiphe graminis DC., Erysiphe graminis DC. f.sp.hordei Marcha. Oatmeal cereal powder barley specialization type. Can not infect wheat, rye and oats. Morphological characteristics, route of transmission, and disease conditions can be found in wheat powdery mildew.

Control methods (1) Use early-maturing No. 3, early-maturing No. 5, Huangbaigua, Guandong Zhongsheng and other disease-resistant varieties. (2) See wheat powdery mildew for other methods.