Nematıcıdal Actıvıtıes Of Essentıal Oıls Agaınst Meloıdogyne Incognıta On Tomato Plant

Abstract

In recent years, researchers have been looking for more sustainable and environmentally friendly ways to control of plant pests. The use of essential oils has the potential to become an alternative control strategy against plant parasitic nematodes.

The root-knot nematodes are the most destructive group of plant parasitic nematodes all over the world and their control is enormously challenging. Essential oils have great potential for nematode management, because they have the chance to be developed as nematicides.

This study conducted to evaluate the effects of ten plant essential oils (Artemisia absinthium, Citrus bergamia, Eucalyptus citriodora, Hypericum perforatum, Lavandula officinalis, Mentha arvensis, Ocimum basilicum, Piper nigrum, Thymus serpyllum Zingiber officinale) in greenhouse conditions against root-knot nematode Meloidogyne incognita on tomato plants.

Therefore, the nematicidal activity of ten different plant essential oils at three application doses (1%, 3% and 5%) on M incognita infected tomato plants grown in pots were investigated in terms of root gall formation, number of egg masses formed on root area and plant length.

As a result of the study, the most effective essential oils on galling rate were found as; A. absinthium, L. officinalis, M arvensis, T serpyllum, P. nigrum, C. bergamia, E. citriodora, O. basilicum, Z officinale and H. perforatum respectively (p<0.05). The efficacy of essential oils on the number of egg masses and root gall formation on roots were found well enough at application doses of 3% and 5%.