Integrated Management of Bacterial Leaf Blight of Rice caused by Xanthomonas oryzae pv. oryzae

摘要

The field experiment was c mducted to test efficacy of fungicide, antibiotic, biocontrol agents and botanicals either individually or as combinations. Combined application of Streptocyline @ 250 PPM + Copper oxychloride @ 0.25% were the best combination for the control of BLB and was followed by foliar application of Streptocycline @ 250 ppm + Copper oxychloride @ 0.25% + P. fluorescens 108cfu ml~(-1) @ 8g l~(-1) and Streptocycline alone @ 250 ppm.The P. fluorescens 10~8 cfu ml~(-1) also reduced thedisease incidence and increased the yield.Screening was done taking thirteen cultivars and out of those only Ajaya was resistant against bacterial blight of rice. Taraori, P-2511, P-1121 and P-1460 were moderately resistant to blight disease and none ofthe cultivars screened were found immune for BLB of rice.