The rust of pea occurs in severe form in cooler regions of India. The uredosori are small, oval or round and brown in colour are present on the surfaces of leaves. At the severe infection, the complete leaf withers and dies prematurely. As the disease progresses, the dark brown coloured telia are formed on stem and leaves. The aecial and pycnial cups are produced on the same host plant. In cool and wet climate of northern India, the entire plant may be killed.
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