Blackleg outbreaks were noticed on three fields (about 100 ha total) in 2 consecutive years (2018, 2019) one of the main potato growing areas Serbia (Bačka region, Vojvodina). The percentage infected plants reached 40 to 70%, with 10.5 44.7% yield reductions. From fields, out 90 samples Pectobacterium carotovorum subsp. brasiliensis was most frequently identified and diagnosed as causal agent b...