Efficacy of biocontrol agents and plant products against Pseudomonas syringae pv. mori and Xanthomonas campestris pv. mori causing bacterial blight in mulberry
2000
Baqual, M.F. (Central Sericultural Research and Training Institute, Mysore (Inde)) | Sharma, D.D. | Gupta, V.P. | Chandrashekar, D.S.
The efficacy of different biocontrol agents and plant products was tested in vitro against Pseudomonas syringae pv. mori (Psm) and Xanthomonas campestris pv. mori (Xcm) causing bacterial blight in mulberry. The efficacy of these bioagents was compared with the recommended chemical fungicide (Dithane M-45, 0.2%) and agricultural antibiotic (Streptocycline, 0.1%). Of the twelve biocontrol agents, P. fluorescens (PF-2) and T. harzianum (TH-1) were found most effective against both the pathogens and were rated under strong antagonist category. With regards to five plant products tested, Neemgold (Azadirachtin 0.15% EC) gave the highest inhibition zone of 18.3, 23.2 and 28.3 mm against Psm and 9.0, 12.0 and 20.0 mm against Xcm at 0.1, 0.2 and 0.3% concentrations, respectively. The degree of antagonism for the above plant products was assessed as moderate to strong. However, the efficacy of antibiotic was significantly higher when compared to biocontrol agents, plant products and fungicides
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