Question

The most effective means to control 'Molya disease' of wheat is:

• A. Flooding the crop
• B. Hot water treatment
• C. Crop rotation
• D. Lindane spray

Hint:

Molya disease of wheat:
- Caused by Heterodera avenae.
- Control: Crop rotation (non-host crops).
- Also: Resistant varieties, nematicides.

Answer 1

The Correct Option is C

Step 1: Understanding the Question:
This question tests knowledge of nematode disease management.

Step 2: Detailed Explanation:
Molya disease of wheat is caused by the nematode Heterodera avenae (cereal cyst nematode).
Crop rotation with non-host crops (e.g., mustard, chickpea) is the most effective control method.
Flooding the crop (A): Not effective against nematodes.
Hot water treatment (B): Used for seed treatment, not for field control.
Lindane spray (D): Insecticide, not effective against nematodes.
Thus, crop rotation is the most effective means of control.

Step 3: Final Answer:
Thus, the most effective means to control Molya disease is crop rotation, which corresponds to option (C).
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