Nine medicinal and aromatic plants viz., santonia, Artemisia cinae;
neem, Azadirachta indica; calotropis, Calotropis procera; stramonium, Datura
stramonium ;eucalyptus, Eucalyptus globulus; melia, Melia azedarach; hamd,
Mesembryanthemum forsskalie; geranium, Pelargonium graveolens; schinus,
Schinus terebinthifolius were evaluated as botanical organic soil amendments
against root-knot nematode, Meloidogyne incognita activity in natural and
sterilized soils on eggplant under greenhouse conditions. All of botanical
organic amendments satisfactory reduced (psO.01) the total number of galls,
females and egg-laying females as well as the total number of nematodes in
eggplant roots compared with non treated check. Pots receiving hamd,
schinus and stramonium performed the best minimizing females number with
percentage of redaction 97.9, 95.5 and 94.6% respectively in sterilized soil
com paired with Mocap (99.1 %). While, powder of geranium, neem, calotopis
and eucalyptus had comparatively lower effects. In non sterilized soil the best
reduction in galls number induced by nematode infection performed with
santonia (9), hamd (13), and neem (30.5) compared with Mocap (7) and
untreated check (700.0 galls).therefore, the best minimizing female number
was recorded when pots received these materials. The best of the
percentage of female reduction were 98.8, 98.6 and 97.8 for hamd, santonia
and schinus respectively compared with Mocap (99.7). While, powder of
calotopis, eucalyptus, neem and geranium had comparatively lower effects.
In sterilized soil, nematodes multiplied greater on eggplant than in natural
one. The plant growth of eggplant as measured by length of shoot and root
and weight of fresh and dry shoot and number of leaves showed an
improvement over healthy plant in some treatment. As results, there was a
positive reaction, in most cases, between botanical soil amendments
treatment and plant growth.