Evaluation of nematicidal potential of neem sawdust against Meloidogyne arenaria on eggplant

The present study was conducted to evaluate the impact of amending soil with decomposed neem (Azadirachta indica) sawdust at different concentrations (0-100%) against inoculum levels (0-4000) root-knot nematode (Meloidogyne arenaria) infecting eggplants. Various physico-chemical properties increase as concentration (NSD) in field increases. Nevertheless, nitrogen content decreased a progressive fluctuation NSD. Lower (10-30%) NSD, and without levels, improve plant growth photosynthetic pigment significantly compared controls (plants uninoculated soil) well inoculated plants. maximum improvement pigments recorded 30% NSD amendment this continuously effective all levels. At higher (40-100%), studied parameters were gradually control similar reductional trend also observed on On reproduction, progressively suppressed number egg masses but enhanced galls only up 30%. Galling was, however, totally absent 70% onward dust treatments Conclusively, along buildup beyond 40% amendments. Thus, lower (up amendments) will be recommended supplement eggplants, which have nematicidal potential nematodes.