Vol. 12, Issue 5 (2023)

Author(s):
B Navya Tejaswini, KT Apet and AG Patil

Abstract:
Mango bacterial leaf spot caused by Xanthomonas campestris pv. mangiferaeindicae is one of the most destructive diseases inflicting considerable qualitative and quantitative losses. Invitro efficacy of chemicals and antibiotics, namely copper sulphate, copper oxychloride, streptocycline, mancozeb, 2-bromo 2 nitro propane 1,3 diol, carbendazim, streptocycline + copper sulphate, copper sulphate + 2 bromo 2 nitro propane 1,3 diol, mancozeb + copper oxychloride was evaluated for the management of bacterial leaf spot of mango caused by Xanthomonas campestris pv. mangiferaeindicae. The results showed that all the tested chemicals and antibiotics at different concentrations significantly inhibit the growth of the bacteria compared to control. Streptocycline 500 ppm was found most effective inhibiting the bacterial growth (30.66%) of Xanthomonas campestris pv. mangiferaeindicae followed by streptocycline + coppersulphate (28.11%) at 250 + 2000 ppm and carbendazim + streptocycline (27.33%) at 1000 + 500 ppm. Copper sulphate was found least effective with 10.33% inhibition over control.