Bio-control of Tip-over Disease of Banana

Efficacy of three antagonistic microorganisms viz. Pseudomonas fluorescens, P. aeruginosa and Bacillus subtilis and extracts of six plant species like Ocimum, Eupatorium, Meswak, Kalongi, Isoqbul and Garlic for their antagonistic and antibacterial effect on Erwinia carotovora sub sp carotovora/Erwinia chrysanthemi were studied. Among the antagonistic microorganisms, P. aeruginosa was found to be most effective in vitro conditions followed by P. fluorescens. Of all the plant extracts tested, garlic was found to be highly effective in inhibiting the growth of banana Erwinia species (13.0 mm) followed by isoqbul (7.0 mm).