a) Results of the in planta efficacy of plasma activated water applied 6 days before pathogen inoculation at root apparatus (PAW-R), compared to the negative (SDW-R) and positive controls (ASM-R), against bacterial leaf spot caused by Xanthomonas vesicatoria (strain IPV-BO 2684) on tomato plants cv. Moneymaker (dark grey histogram) and cv. VF 10 (grey histogram) grown under greenhouse conditions. b) Results of the in planta efficacy of plasma activated water applied at root apparatus at different times before pathogen inoculation (BPI) (PAW-1: 2 days BPI, PAW-2: 1 day BPI, PAW-3: 1.5 hours BPI), compared to that of the negative (SDW) and positive controls (ASM), against bacterial leaf spot caused by Xanthomonas vesicatoria (strain IPV-BO 2684) on tomato plants cv. VF-10 grown under greenhouse conditions. Different letters denote significant differences according to the Duncan's test (p 0.05).