Effectiveness of soil fumigation with 50, 100 and 200 L kg-1 soil of essential oils of Eucalyptus citriodora, Eucalyptus globulus, Mentha pulegium, Pelargonium asperum and Ruta graveolens was assessed against the root-knot nematode Meloidogyne incognita on potted tomato. Plant growth parameters and number of galls and nematode eggs and juveniles on tomato roots were evaluated after a two-month permanence of plants at 25 °C in greenhouse. Essential oils of E. globulus and P. asperum significantly reduced nematode multiplication and gall formation on tomato roots at all the tested rates, whereas those of E. citriodora, M. pulegium and R. graveolens were suppressive only at more than 50 L kg-1 soil. Oils of P. asperum and E. globulus also resulted in the largest increase of plant top and root biomass.
Potential of soil biofumigation with essential oils for the control of root-knot nematodes on tomato
LAQUALE, SEBASTIANO;CANDIDO, Vincenzo;LOVELLI, Stella;
2014-01-01
Abstract
Effectiveness of soil fumigation with 50, 100 and 200 L kg-1 soil of essential oils of Eucalyptus citriodora, Eucalyptus globulus, Mentha pulegium, Pelargonium asperum and Ruta graveolens was assessed against the root-knot nematode Meloidogyne incognita on potted tomato. Plant growth parameters and number of galls and nematode eggs and juveniles on tomato roots were evaluated after a two-month permanence of plants at 25 °C in greenhouse. Essential oils of E. globulus and P. asperum significantly reduced nematode multiplication and gall formation on tomato roots at all the tested rates, whereas those of E. citriodora, M. pulegium and R. graveolens were suppressive only at more than 50 L kg-1 soil. Oils of P. asperum and E. globulus also resulted in the largest increase of plant top and root biomass.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
