Management of Reniform Nematode, Rotylenchulus reniformis on Cowpea by using Bio-agents and Plant Extracts

A pot experiment was carried out under cage house condition for management of R. reniformis infecting Cowpea (Vigna unguiculata L.) by using bio-agents T. viride, Trichoderma harzianum and Pseudomonas fluorescens (@ 2 g/kg soil) as soil application and plant extracts viz., Lantana (Lantana camara), Aak (Calotropis gigantea) and Ashwaganthan (Withania somnifera) as seed soaking treatment along with chemical (carbofuran 3G @ 1kg a.i/ha) and untreated control. The experiment was laid out in completely randomized design block (CRD). Stastical analysis showed that combined effect of T. harzianum @ 2 g/kg soil as soil application and 30 per cent concentration of Lantana (L. camara) as seed soaking proved better over other treatments in enhancing growth parameters of cowpea and minimizing infection of R. reniformis.