Devising Integrated Nematode Management Technology against Meloidogyne incognita in Okra

Root knot nematode, Meloidogyne incognita is sedentary endoparasite and plays important role in determining the yield of plants. Expression of phytotoxicity effect along with low efficiency and high input cost of chemical nematicides makes the farmers opt for other nematode management options. An experiment was conducted to evaluate the efficacy of different biocontrol agents (Bacillus firmus, Bacillus subtilis, Trichoderma asperellum, Purpureocillium lilacinum, Rhizophagus intraradices) and oil cake (Neem cake) and chemical nematicides (Fluensulfone and Fluopyrum). Plant growth parameters along with final nematode population density in soil and roots were recorded. The experimental results revealed that combined application of B. firmus, B. subtilis, T. asperellum, P. lilacinum, R. intraradices along with neem cake @1g/pot significantly reduced the nematode population and increased the plant growth characters than other treatments.