Bioefficacy of six nematicides for management of root-knot nematodes in tomato nursery

Evaluation of ethoprophos, phorate, sebufos, HOE 388 and benfurocarb each @3 and 6 kg/ha compared with carbofuran @ 3 kg/ha for the control of root-knot nematodes in infested tomato nursery indicated that none of the nematicides applied suppressed seed germination. Sebufos @3 kg/ha recorded maximum seed germination. Carbofuran @3 kg/ha gave maximum seedling height closely followed by sebufos and ethoprophos @3 kg/ha. However, production of transplantable and total seedlings was significantly more in ethoprophos @6 kg/ha followed by sebufos @3 & 6 kg/ha, ethoprophos @3 kg/ha and benfurocarb @6 kg/ha than the other treatments. Sebufos @3 and 6 kg/ha recorded significantly less root-knot index, next being ethoprophos @3 and 6 kg/ha. From overall observations, sebufos (Rugby 10G) even applied @3 kg/ha gave good growth of seedlings and thereby produced more numbers of transplantable seedlings with least root-knot disease.