Triệu chứng The severity of the disease depends on the susceptibility of the plant. In vulnerable varieties, the fungus produces tiny, yellow to orange (“rusty”) pustules that are arranged in rows forming narrow stripes parallel to the leaf veins. They eventually merge and can engulf the whole leaf, a feature
Yellow Stripe Rust
Nấm
Triệu chứng
The severity of the disease depends on the susceptibility of the plant. In vulnerable varieties, the fungus produces tiny, yellow to orange (“rusty”) pustules that are arranged in rows forming narrow stripes parallel to the leaf veins. They eventually merge and can engulf the whole leaf, a feature that appears earlier in young plants. These pustules (0.5 to 1 mm in diameter) can sometimes also be found on stems and heads. At later stages of the disease, long, necrotic, light brown stripes or blotches are visible on leaves, often covered with rusty pustules. In severe infections, the growth of plants is seriously compromised and tissues are damaged. The reduced leaf area leads to lower productivity, fewer spikes per plant and fewer grains per spike. Overall, the disease can lead to severe crop losses.
