The field experiment was conducted in a naturally root-knot nematode infested tomato field from
March-July, 2015, in randomized complete block design with three replications using seven
treatments viz. neem cake @ 3 t/ha, chicken manure @ 20 t/ha, yellow mustard oil cake @ 3 t/ha,
Alstasan Silvox (silver hydrogen peroxide) @ 1 ml/L of water/m2 before sowing and 5ml/L of
water/plant at 30 days after sowing, Bio-Nematon (Paecilomyces lilacinus) @ 10 kg/ha, biogas
slurry @ 20 t/ha and control. Disease parameters i.e., juvenile population of nematode in soil and
root and root-knot index were recorded at 45, 75 and 122 days after sowing. Growth parameters
i.e., plant height, fresh shoot weight, root length and dry root weight were recorded after final
harvesting of pods. Chicken manure, yellow mustard oilcake and neem cake significantly reduce
juvenile population of nematode in soil and root and root-knot index as well as increase yield as
compared to control . However, Alstasan Silvox and Bio-Nematon also gives satisfactory results.
Therefore, chicken manure, neem cake and yellow mustard oil cake could be better alternative to
chemical nematicides for eco-friendly management of root-knot nematodes.