Aloe vera soft rot Erwinia chrysanthemi is a bacterial disease that affects the aloe plant worldwide and causes serious economic losses in southern Tamil Nadu. The objective of this study is to study the effect of Antagonistic Bacteria and organic amendments on Aloe vera soft rot and rhizosphere population. Methods in the present study, pot experiments were conducted to evaluate the Pseudomonas fluorescens32 and 45 and Bacillus subtilis strains and their derived bio organic amendments as potential biocontrol agents against aloe vera soft rot disease. In the pot, Pf isolates Pf 32, Pf 45 and Bacillus isolate of Bs 5 were compatible with each other. The shelf life of the talc based formulation of Pf 32, Pf 45 and Bs5 was more than 90 days. In the pot culture experiment, pre inoculation spraying of Pf32 + Pf 45 + Bs5 talk based formulation (1g/l) was the most effective against Aloe vera soft rot disease.

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