Induction of Resistance against Citrus Canker through Chemicals and Plant Activators

Abstract

The objective of present study was to evaluate the effect of copper hydroxide and flare at three concentrations (0.1, 0.2 and 1%) and naphthalene acetic acid, salicylic acid, copper hydroxide alone and in combination (Flare + salicylic acid) at 0.75, 1 and 1.5% concentration against Xanthomonas axonopodis pv. citri in lab and greenhouse conditions respectively. Results showed that in lab condition maximum inhibition of bacterial growth was expressed by combination of flare and copper hydroxide, followed by Flare, copper hydroxide over control while in case of greenhouse experiment minimum disease incidence was expressed by combination of Flare + salicylic acid after 5, 10 and 15 days interval followed by flare, salicylic acid, naphthalene acetic acid and Cu(OH) 2 as compared to control.

Comparative Efficacy of Different Antibiotics, Fungicides and Botanical Extract for the Control of Citrus Canker of Kinnow Mandarin

“…Control treatment had maximum number of affected fruits 9.25 out of hundred fruits. Present results are in line with the findings of Khan et al (2018) who found remarkable control of citrus canker by copper-based chemicals. Similarly, in one of the previous study, streptomycin sulfate and A. cepa extract significantly reduced citrus canker (Atiq et al, 2018).…”