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Overview Citrus Canker is caused by the bacterium Xanthomonas axonopodis pv. citri. It is a major threat to commercial citrus species like lemons, limes, and oranges, causing leaf drop and unmarketable blemished fruit.
Key Symptoms - Corky Lesions: Raised, brown, corky spots with water-soaked margins appear on leaves, twigs, and fruit. - Yellow Halo: A prominent yellow ring or halo often surrounds the corky lesions on leaves.
Management 1. Sanitation: Prune infected twigs and burn them. Clean pruning tools with disinfectant. 2. Chemical Control: Spray Copper Oxychloride 50 WP (3g/L) combined with Streptocycline (0.1g/L) to manage bacterial infection.
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Prepared by KhetiSetu Agri-Expert
KhetiSetu Plant Clinic Expert Team verifying and curating agricultural disease data for farmers.