Chemicals for the Management of Rice Root-Knot (Meloidogyne graminicola) and Rice Root (Hirschmanniella oryzae) Nematodes

Field experiments were conducted separately for the management of rice root-knot nematode (Meloidogyne graminicola) and rice root nematode (Hirschmsnniella oryzae) with Cartap hydrochloride and Phosphonothioate each as nursery bed treatment, and both nursery and main field application for three consecutive years. The results revealed that application with Phosphonothioate 10G@ 1 kg a.i./ha at 7 days prior to uprooting plus main field application at 45 days after transplanting @ 1 kg a.i./ha exhibited maximum reduction of both M. graminicola and H. oryzae population. Maximum yield of rice in both the experiments were also recorded in the same treatment.