Turcicum Leaf Blight — Maize

Symptoms

Early symptoms appear as small, oval, water-soaked spots on the leaves. Spots enlarge into long, spindle-shaped or cigar-shaped lesions. Mature lesions are greyish-green to tan and have necrotic centres. Lesions often appear first on lower leaves and increase in number and size as the plant grows. Adjacent lesions may merge, causing large areas of leaf tissue to dry and appear burned. Severe infection around silking can result in extensive loss of green leaf area.