Rice root-knot nematode (Meloidogyne graminicola) an emerging problem

Of late, rice root-knot nematode, Meloidogyne graminicola has emerged as a major threat throughout the world due to its adoptable nature, broad host range and ability of causing potential yield loss. The losses caused by M. graminicola may vary from 16-80 %. The daignostic symptoms of root knot disease of rice are, stunted growth, yellowing, and gall formation on the roots of rice plants. The degree of symptom manifestation depends on several factors, viz., time of infection, age of the plants and load of inoculums.