Survey of Wilt (Fusarium udum) and the Cyst Nematode (Heterodera cajani) Incidence on Pigeonpea of Prayagraj District

Abstract

A survey was conducted in selected villages of Prayagraj district to evaluate the disease incidence of Fusarium (Fusarium udum) wilt and cyst nematode (Heterodera cajani) of pigeon pea (Cajanus cajan). Soil and roots were collected from the rhizosphere of infested pigeonpea plants. The maximum wilt incidence was recorded (57.6%) in Dari village followed by Pump House (56%), Pahlu ka Purwa (51.2%) and the lowest incidence of wilt was recorded in Chaka (12.8%), Naini (11.2%) and Jhusi (9.6%) in the year 2016. For cyst nematode, soil samples was collected from selected fields, the soil was mixed thoroughly and 500 g of the soil was processed following Cobb’s sieving and decanting method where cyst and J2’s were separated in separate mesh size sieves. It was observed that infestation of Heterodera cajani was very high in Jari (51%) followed by Naini (41%). The minimum infestation of Heterodera cajani was found in Meza village which was responsible for wilt disease in pigeonpea concluding that Fusarium wilt of pigeonpea is a major problem in Prayagraj district of U.P. India.