Rust Puccinia carthami Leaf spot Cercospora carthami Leaf blight Alternaria carthami 1. RUST- Puccinia carthami Symptoms The pustules (uredosori) are chestnut brown in colour and scattered throughout the leaves. Later, black teliosori are formed on the leaves. Stem girdling occurs in older plants and rust pustules also appear on roots. Uredia and telia are produced […]
