Identify the bacterial disease among the following:
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Early identification of bacterial diseases is key to effective crop management.
- Brown rust of wheat
- Tobacco mosaic disease
- Black rot of crucifers
- Late blight of potato
The Correct Option is C
Approach Solution - 1
The bacterial disease among the options is Black rot of crucifers.
(A) Brown rust of wheat - Incorrect: Caused by fungus Puccinia triticina.
(B) Tobacco mosaic disease - Incorrect: Caused by TMV (Tobacco Mosaic Virus).
(C) Black rot of crucifers - Correct: Caused by Xanthomonas campestris pv. campestris bacteria.
(D) Late blight of potato - Incorrect: Caused by oomycete Phytophthora infestans.
The correct answer is (C) Black rot of crucifers, caused by a Gram-negative bacterium affecting cabbage-family plants.
Approach Solution -2
Black rot of crucifers is a bacterial disease caused by Xanthomonas campestris, affecting crops like cabbage, cauliflower, and broccoli, which belong to the crucifer family.
- Brown rust of wheat is a fungal disease caused by Puccinia recondita.
- Tobacco mosaic disease is caused by a virus known as the tobacco mosaic virus (TMV), not a bacterium.
- Late blight of potato is caused by the fungus-like organism Phytophthora infestans.
Option (C) is correct as black rot of crucifers is the bacterial disease listed.
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