In vitro efficacy bioagents against bacterial blight of clusterbean caused by Xanthomonas axonopodis pv. cyamopsidis

Abstract

The different bioagents were evaluated against Xanthomonas axonopodis pv. cyamopsidis causing bacterial blight of clusterbean under in vitro condition. Among all the eight bioagent viz., Trichoderma viride, Trichoderma harzianum, Trichoderma hamatum, Bacillus subtillis, Trichoderma konigii, Azospirillum sp., Acetobacter sp. and Pseudomonas fluroscences were evaluated in vitro against Xanthomonas axonopodis pv. cyamopsidis. All the treatments significantly inhibited bacterial growth of Xanthomonas axonopodis pv. cyamopsidis over untreated control. Among eight bioagent Pseudomonas fluroscences, Bacillus subtilis and Acetobacter sp. significantly inhibited the bacterial growth each at 81.26%, 78.95% and 76.72% respectively.