Question:
Ufra disease of rice caused by:
Ufra disease of rice caused by:
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Remember:
Ufra disease of rice = Ditylenchus angustus
White tip disease of rice = Aphelenchoides besseyi
Ufra disease of rice = Ditylenchus angustus
White tip disease of rice = Aphelenchoides besseyi
Updated On: Aug 18, 2026
- Ditylenchus destructor
- Ditylenchus dipsaci
- Aphelenchoides besseyi
- Ditylenchus angustus
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The Correct Option is D
Solution and Explanation
Step 1: Understanding the Concept:
Nematode diseases of rice can lead to severe yield losses in waterlogged and deepwater rice ecosystems.
Step 2: Detailed Explanation:
"Ufra" is a serious foliar disease of rice caused by the stem and bulb nematode {Ditylenchus angustus.
The nematode is an ectoparasite that feeds on the tender tissues of leaf sheaths, young buds, and developing panicles, causing twisting, chlorosis, and empty or distorted grains.
Note: Aphelenchoides besseyi causes "White tip" disease of rice, which is another common rice nematode.
Step 3: Final Answer:
The causal organism of Ufra disease of rice is Ditylenchus angustus, which is option (D).
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