Occurrence and management of root rot of pea

Among 24 Pea fields of three locations, root rot was detected in 12 fields in surveys (2010–11) of Udaipur and its incidence was highest at Badgaon followed by RCA and Rampura. Disease was noticed in patches in fields and plants had rotted roots. Systemically wilted plants were commonly seen in sick fields. Pre and post mortality of pea seedlings were detected on 7 and 21 days of inoculations. Symptoms like drooping, yellowing, reddish brown necrotic patches on roots and shoots were noticed in potted peas. In laboratory, Carbendazim was found best at all three concentrations followed by Tebuconazole and Captan, orange peel remained best followed by turmeric and karanj, Trichoderma harzianum was found superior over T. viride. All seven seed treatments were able to reduce root rot and increase seed germination and plant height in pot culture experiment. The combinations of Carbendazim + orange peel + T. harzianum was found best followed by Carbendazim+ orange peel, Carbendazim + T. harzianum and orange peel + T. harzianum, respectively.