Plant guide:ð Lemon Tree
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Fungal
Citrus Canker on Lemon Tree
Commonly affects: Citrus limon (Lemon Tree)
Raised, corky, brown lesions with a yellow halo develop on leaves, stems, and fruit, sometimes causing leaf drop and fruit blemishing.
Potential Causes
- 1Xanthomonas bacteria, a serious disease in citrus-growing regions, spread by wind-driven rain and contaminated tools
- 2Regulated in many regions given its economic impact on citrus agriculture â suspected cases often require reporting to agricultural authorities
- 3More of a risk in commercial or regional outbreak areas than in typical isolated backyard or container trees, though vigilance is still warranted
Solution Steps
- 1Contact your local agricultural extension service immediately if citrus canker is suspected, since this disease is regulated in many regions
- 2Avoid moving plant material (cuttings, fruit) from a suspected-infected tree to other locations
- 3Sterilise tools between citrus trees as a general precaution
- 4Follow official guidance for containment or removal if a diagnosis is confirmed by authorities
Prevention Tip
Citrus canker is a regulated disease in many regions â a suspected case should be reported to local agricultural authorities rather than treated informally.
