Sorghum Downy Mildew (fungus - Peronoscherospora sorghi): Symptoms are yellow, stunted plants with occasional white striped leaves. Infection is systemic. Infected plants have narrow, more erect leaves. Plants will have bushy tassels and downy white growth will appear on both leaf surfaces. Tolerant plants show some symptoms but still produce seed. Some varieties show long, narrow, yellow lesions. Spores can blow from plant to plant or field to field. Other spores survive for years in the soil. Use resistant hybrids and systemic fungicide seed treatment.
