Abstract
Predatory nematodes play an important role in maintaining the population of plant parasitic nematodes and other soil biota in soil ecosystem. Based on feeding apparatus and feeding methods, predatory nematodes can be categorized in four major groups viz., mononchids, diplogasterids, dorylaimids and aphelenchids. This review examines predatory attributes of these groups. Biocontrol potential, factors affecting efficacy, biology, culturing and survival of predatory nematodes are also discussed here. The authors have analyzed the research status on predatory nematodes vis-a-vis plant parasitic and entomopathogenic nematodes and suggested future line of work for their utilization against plant parasitic nematodes.
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