Integrated disease management of onion leaf rot under field condition

Abstract

The leaf rot of onion is caused by Enterobacter cloacae, which is recently found disease of onion in Karnataka. It is causing considerable damages in the Onion growing areas of Karnataka. Hence the field management to overcome this disease has become more important. In present investigation leaf rot disease of onion was managed by using integrated approaches lby using bactericides, botanicals and bio agents under the field condition. The highest reduction was recorded by treatment T1 (streptocycline at 500 ppm + copper oxy chloride at 0.3%) followed by treatment T3 (2-bromo-2 nitropropane-1, 3-diol (Bactinash-200) at 500 ppm + Copper hydroxide at 0.2%). However, the least reduction was found in case of treatment T8 (Bravibacillus spp. 108 cfu/ml).