Multiple choice

Identify the mismatched pair of disease and its causative agent.

  1. Black root rot of cotton: Thielaviopsis basicola

  2. Black rot of crucifers: Xanthomonas campestris

  3. Gray mold of hemp: Agrobacterium tumefaciens

  4. Downy mildew of mustard: Peronospora parasitica

  5. Bottom rot of lettuce: Rhizoctonia solani
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The most important disease of hemp is gray mold, caused by the fungus botrytis cinerea. Crown gall of hemp is caused by agrobacterium tumefaciens.

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