Vol. 12, Issue 5 (2023)

Isolation of nematode parasitic fungus from14 blocks with 43 villages under four districts of northeastern region viz., Cuddalore, Villupuram, Kallakurichi and Vellore and the cultures were identified against nematode, based on the infection structure and capacity for mortality on juveniles of M. incognita. Maximum mortality percentage (75.00 percent) was observed in the sample which was collected from Annavalli village, Cuddalore block (Table 1). Soil sample from Villupuram block recorded only mortality of 55.50 percent in Adanur village. The lowest mortality 15.50 and 15.20 percent was observed in the districts viz., Kallakurichi and Vellore. Finally, Single selected culture was sent to Chromous Biotech, Bangalore for molecular characterization.