AgroScience Today, Volume 4, Issue 4 : 0576-0578

OPEN ACCESS | Published on : 30-Apr-2023

Rice Root-Knot Nematode - Major Threat to Rice

  • Sowmya R
  • Assistant Professor (Nematology), Department of Crop Protection, MITCAT, Musiri, Trichy, India.
  • Sasikala G
  • Assistant Professor (Agricultural Microbiology), Department of Crop Management, MITCAT, Musiri, Trichy, India.


More than half of the world's population relies primarily on rice (Oryza sativa L.) as a food source. Majorly rice crop was affected by biotic factors such as weeds, insects, diseases, and nematodes which contribute to lower productivity. Among these biotic factors, rice root-knot nematode Meloidogyne graminicola infestation causes up to 72% yield loss in rice crop production. The rice root-knot nematode adapted well to flooding conditions and causing risk to all rice ecosystem. Recently, it is found in Italy and added to the EPPO (European and Mediterranean Plant Protection Organization) Alert List.


rice, Root-Knot, Nematode, Meloidogyne graminicola, Symptoms, Management, Yield losses


  • Ahmad, S., Rehman, F., Adnan, M., Ahmad, I., Ahmad, S., Iqbal, Z., and Ehetisham ul Haq, M. (2022). Rice Nematodes and Their Integrated Management. In Modern Techniques of Rice Crop Production (pp. 517-543).

    Gupta, R. C., and Pandey, S. (2018). Root-knot nematode in garlic caused by Meloidogyne species: first record from Karnal district of Haryana state. Journal of Spices and Aromatic Crops, 27(2), 158-160.

    Kumar, V., Khan, M. R., and Walia, R. K. (2020). Crop loss estimations due to plant-parasitic nematodes in major crops in India. National Academy Science Letters, 43, 409-412.

    Mantelin, S., Bellafiore, S., and Kyndt, T. (2017). Meloidogyne graminicola: a major threat to rice agriculture. Molecular plant pathology, 18(1), 3.


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