Antagonistic plants as a tool of nematode management
Abhijit Chetia, Priyanka Gogoi, Pallabi Roy and Madhumita Goswami
Plant parasitic nematodes are nearly microscopic worm shaped organisms. The damage caused by them ranges from negligible injury to total destruction of the plant. The extent of direct damage by the plant parasitic nematodes to the crops depends on several factors. Overall average annual loss of the world’s major crops due to the damage of plant parasitic nematodes was estimated to be 12.3%. The present practices of nematode management mostly rely on the combined use of various cultural and biological methods, which aimed at long-term nematode management considering the ecological and economic conditions. Among such management practices the use of various antagonistic plants is found to be quite effective. Plants like Crotolaria, marigold (Tagetes spp.), Neem (Azadirachta indica), species of Brassica have already been identified as having antagonistic effects to the plant parasitic nematodes. This review highlights the effect of different antagonistic plants against plant parasitic nematodes and the efficient ways for their incorporation.