Effect of olive pomace soil amendment on Meloidogyne incognita

The nematicidal effect of 0.5, 1, 2 and 5% w/w exhausted olive pomace soil amendment after 2, 4 and 8 weeks of decomposition in the soil was tested on Meloidogyne incognita in vitro and in glasshouse. Juvenile emergence was reduced by 30% in leachates from soil amended with 5% olive pomace, with no difference among various degradation periods. Reproduction of M. incognita in amended soil was significantly suppressed at all amendments rates, decreasing by 50% at the highest pomace rate.