Infestation of an endoparasitic migratory rice root nematode, Hirschmanniella oryzae - a serious threat to the paddy growers of western U.P. - a first report.
During a series of systematic surveys of paddy fields during the months of August and September 2015, in and around Gautam Budha Nagar (Uttar Pradesh, India), heavy infestations of an endoparasitic root nematode causing highly retarded growth, reduced tillering in the early growth stages and delayed the flowering of infected rice plants. The causal organism was identified as Hirschmanniella oryzae based on morphological and pathogenicity analyses. This is thought to be the first report of H. oryzae on rice in Uttar Pradesh, India.