NEMATICIDAL ACTIVITY OF WASTE WATER FROM OLIVE OIL-MILLS

Abstract

The efforts of waste water from olive oil mills on root-knot nematode (Meloidogyne spp.) development on tomato roots and its ethyl acetate-acetone extract effect on egg hatching of Meloidogyne incognita were investigated in pot and laboratory experiments, respectively. Separation of phenols was done in the HPLC and individual phenols were tested for their effect on nematodes in the soil. Galling and egg masses on tomato roots were reduced significantly by addition of waste water to the soil. Egg hatch was also significantly reduced by the ethyl acetate-acetone extract at the two concentrations tested. Some of the phenols reduced galling and egg masses on tomato roots when added to the soil.