EFFICACY OF SOME CHEMICALS AS SEED TREATMENT IN OKRA AGAINST MELOIDOGYNE JAVANICA

摘要

Relative efficacy of some seed treating chemicals (benfurocarb, carbosulfan, imidacloprid and pirimicarb) was tested against Meloidogyne javanica in okra under screen house conditions at 3 and 6% doses (on a.i. basis). All the chemicals showed improvement in plant growth parameters and reduction in number of galls/plant. However, comparatively better response was observed in carbosulfan treatment. Further evaluation of carbosulfan at different inoculum levels clearly indicated a direct correlation between the dose of carbosulfan and nematode inoculum level in the soil. However, at exceptionally high nematode inoculum level in soil (5 l/g. soil) Seed treatment alone even at high dose of 6% did not show a good potential in the management of root-knotnematode in okra.