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''Bacterial leaf blight of rice'' is caused by
1. Xanthomonas citri
2. Xanthomonas oryzicola
3. Xanthomonas oryzae
4. Xanthomonas malvacearum

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Correct Answer - Option 3 : Xanthomonas oryzae


  • Rice bacterial blight, also called bacterial blight of rice, is a deadly bacterial disease caused due to Xanthomonas oryzae.
  • It is one of the most important diseases of rice in most rice-growing countries.
  • In this disease, yellowish-green spots are seen on both sides of the leaves.
  • Vascular bundles also get blocked due to bacterial growth.
  • Severely infected leaves tend to dry quickly and there is a loss in grain yield may be up to 60%.


Disease in Plant Bacteria
Citrus Canker Xanthomonas citri
Leaf streak of rice Xanthomonas oryzicola
Angular leaf spot of cotton Xanthomonas malvacearum

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