Field efficacy of fungal and bacterial antagonists against brown spot of rice

Efficacy of two antagonists, namely, Trichoderma harzianum and Pseudomonas fluorescens; was evaluated against brown spot of rice under field conditions. Three sprays of P. fluorescens (Talc based) at weekly interval @10g per litre, proved effective in reducing the disease severity and increasing the yield. It reduced the severity from 35.8 per cent to 24.5 per cent in case of rice variety PR116 and from 20.1 per cent to 8.5 per cent in case of Basmati rice 386.