Effect of fenvalerate, triazophos and FMC 54800 on hatching and mortality of Meloidogyne incognita

Fenvalerate, Triazophos and FMC 54800 were evaluated for their ovicidal efficacy against the root-knot nematode, Meloidogyne incognita. The experiments revealed that triazophos was most effective in reducing the hatch from egg masses followed by FMC 54800 and Fenvalerate. The hatching decreased with increase in concentration from 50 to 200 ppm and exposure time from 3 to 12 hrs. in all chemicals but Triazophos showed significantly better results at low concentrations and shorter exposure periods. Some hatched larvae in chemical treatments also showed sluggish movements. Larval mortality in Triazophos treatment was maximum followed by FMC 54800 and Fenvalerate respectively.