Question

Citrus canker is caused by:

A.

Bacteria

B.

Virus

C.

Fungi

D.

Phytoplasma

Correct option is A

The Correct Answer is: (A) Bacteria
Explanation:
Citrus canker is caused by a bacterial pathogen called Xanthomonas axonopodis pv. citri. This bacterial disease affects citrus crops, causing lesions on the leaves, stems, and fruits.
These lesions are typically raised, circular, and surrounded by a water-soaked margin.
The disease leads to reduced fruit quality and can cause significant yield losses in citrus orchards if not controlled.

Additional Information:

  • Virus: Citrus diseases caused by viruses include Citrus tristeza virus.

  • Fungi: Fungal diseases like Phytophthora root rot affect citrus.

  • Phytoplasma: Phytoplasma diseases, such as Citrus stubborn disease, are distinct from bacterial citrus canker.

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