Journal of FARM SCIENCES, Vol 30, No 4 (2017)

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Survey for assessment of severity of bacterial pustule of soybean caused by Xanthomonas axonopodis pv. glycines (Nakano) dye in northern Karnataka

KUMAR LAMBANI, SHAMARAO JAHAGIRDAR

Abstract


The rowing survey was undertaken to know the severity of bacterialpustule in major soybean growing areas of Karnataka viz., Belagavi,Dharwad, Haveri and Bagalkot districts during kharif 2014. Theseverity of bacterial pustule varied from 10.15 PDI to 16.94 PDI.Maximum mean severity of bacterial pustule was observed in Belagavidistrict (15.34 PDI) followed by Dharwad (14.40 PDI) and Bagalkot(11.79 PDI) district. The minimum severity was recorded in Haveri(11.12 PDI) district. In general the highest PDI (16.94 PDI) wasnoticed at Yabaratti village followed by Bellambi (16.87 PDI) ofBelagavi district and the least PDI of bacterial pustule was observedin Devagiri village (2.31-10.15 PDI) of Haveri district. The studyidentified Yebaratti and Bellambi of Belagavi district as hotspots forbacterial pustule of soybean with infection of index of 16.94 and19.87 respectively. Though, at present the overall severity was lowin all the areas surveyed, the results indicated the increase in appearanceof the disease in recent years necessitated to develop suitablemanagement options in the events of disease outbreak and also tocontrol the movement of disease to low disease risk areas

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