Efficacy of antibiotics and bactericides against Xanthomonas axonopodis pv. citri causing bacterial canker disease of acid lime (Citrus aurantifolia)
DOI:
https://doi.org/10.58628/JAE-2419-210Keywords:
Citrus (citrus aurantifolia), Xanthomonas axonopodis pv. citri, antibiotics/bactericidesAbstract
Diseases are the major constraints for citrus production which impede the fruit yield and quality. Citrus suffers from a number of diseases caused by fungi, bacteria, viruses and viriods. Among these diseases, canker caused by Xanthomonas axonopodis pv. citri, foot rot or gummosis caused by Phytophthora spp., twig blight caused by Diplodia natalensis and Fusarium spp. Three antibiotics and three bactericides viz., Streptocycline, Kasugamycin 5% + Copper oxychloride 45% WP, Kasugamycin, Bacterimycin, Copper oxychloride 50% WP, Copper hydroxide 53.8% W/W were evaluated for their effectiveness in controlling the growth of Xanthomonas axonopodis pv. citri at the Department of Plant Pathology, College of Agriculture, Ummendganj-Kota, (Agricultural University, Kota) Rajasthan. Inhibition was highest in case of copper oxychloride 50% WP (34.20 mm) followed by bronopol 27% (28.90 mm) and streptocycline 90% W/W (12.48 mm) at 500 ppm concentration and no inhibition zone was found in kasugamycin. All the antibiotics/bactericides inhibited bacterial growth at higher concentrations.
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