Multiple choice Blight disease affects paddy. The causative organism is ___________. virus bacteria fungus protozoa Reveal answer Fill a bubble to check yourself B Correct answer Explanation Bacterial leaf blight in paddy (rice) is caused by Xanthomonas oryzae pv. oryzae, a bacterial pathogen. While some blights are fungal, rice blight can be bacterial, and this question specifically refers to the bacterial form.