Survey of the Incidence and Severity of Powdery Mildew and Rust on Pea (Pisum sativum L.) in Sultanpur District of Uttar Pradesh, India

Powdery mildew and Rust are major diseases of pea of worldwide distribution. Powdery mildew and Rust is an airborne disease. Powdery mildew is a particularly damaging in late sowing or in late maturity varieties. It is caused by Erysisphe pisi. The disease can cause 20-50% yield losses, reducing total yield biomass, number of pods per plant, number of seeds per pod, plant height and number of nodes. The disease also affects green pea quality. Pea rust is characterized by the appearance of two types of symptoms. Early symptoms develop on abaxial side of older leaves and form round to oval aecidia. Initially aecidia form creamy white to light yellow to bright orange colored pustules on the leaf and stem. Surveys was conducted in seven blocks and each block cover four villages of Sultanpur district for powdery mildew and rust disease severity. During survey, maximum powdery mildew severity (23.34) was observed in Lambhua, followed by Kurebhar (21.30), Dhanpatganj (21.24), Kurwar (21.19), Dubeypur (20.05), Bhadaiyan (18.74). Powdery mildew disease severity was found to be least in Jaisinghpur (15.95). Similarly, maximum rust severity was observed in Jaisinghpur (49.20) followed by Dhanpatanj (48.69), Dubeypur (43.74), Lambhua(42.07), Kurwar (40.61), Bhadaiyan (37.65). Rust disease severity was found to be least in Kurebhar (30.02).