Section of Nematology, Sugarcane Breeding Institute, Coimbatore-641 007.
*Part of thesis submitted for partial fulfilment of Ph.D. degree at Bharathiar University, Coimbatore-641 046, by the Senior author.
Survey for plant parasitic nematodes was conducted in the 11 districts in state of Tamil Nadu where sugarcane is cultivated as a major crop. Assay of nematode showed that Pratylenchus spp. is the predominant nematode found in varied numbers all over the state. Absolute density and frequency were calculated and from these data relative density and frequency were also calculated. Reasons for the differences in population level are out lined. A distinct picture of the distribution pattern of the nematode in and around the sugar factory zones of the state is apparent.
Nematode, Pratylenchus, density, frequency, sugarcane, Tamil Nadu
