Root-knot nematodes, the major limiting factors affecting the plant growth and yield are mostly controlled by synthetic pesticides. The natural products obtained from plants and their parts are the safe alternatives. In variety of plants Nematicidal components have been identified and successfully tested. This work was carried out to evaluate the potential of aqueous extracts from Carica papaya, Cassia tora and Jatropha curcas on hatching of eggs of the root-knot nematode, Meloidogyne incognita. From these plants water extracts of leaves, stem and seed were obtained from each extracts five dilution were prepared. Rate of hatching was slow extract in seed extracts then in leaf and stem extracts and was slowest in seeds extracts of Cassia tora.