In this research was studied the effect of different concentrations of (ethanolic –
methanolic – acetonic) extracts of Apium nodiflorum on growth of fusarium moniliforme
all extracts revealed clear inhibitory effect against this Fungi.
The inhibit
ory effect differenced as difference of parts of plant and the difference of
using concentrations from extract and a kind of solvent.
The MIC of different extracts ranged between 0.02 and 0.1 g/ml , The Acetonic
extract of stem was the more activity comparing with the other parts of plant inhibition was
completed at (0.02 g/ml) concentration.
For methanolic extract, the extract of whole plant and flowers was more activity and
the MIC was 0.08 g/ml for etanolic extract of flowers recorded the highest percentage of
inhibition incomparing with. The other parts of plant and it reached 0.06 g/ml.
The investigation was carried out during 2011-2012 at the laboratories of Plant
Protection Dep., Faculty of Agriculture, and Chemistry Dep., Damascus
University. The fatty acid composition in the seed and flower of Chinaberry
(Melia azedaracht L.)
was studied by Gas Chromatography. Results showed
that four fatty acids with different rate in seed and flowers of Chinaberry. The
ratio of unsaturated fatty acid was highly in dry and fresh seed oil and reached
88.66% and 85.43%, respectively. Where the percentage of linoleic acid was
higher than oleic acid. The percentage of saturated fatty acids was highly in oil
flowers (39.97%), where the ratio of stearic acid was the highest followed by
palmitic acid. Tthe efficacy of oil extract of dry, fresh seed and flowers
Chinaberry for suppressing the growth of the fungi, Penicillium digitatum and
Botrytis cinerea on artificial media in comparison with standard fungicides,
benomyl and procymidone under laboratory condition was also evaluated.
The toxic effect of some insecticides (Amitraz, Amitraz + summer oil,
Abamectin, Abamectin + summer oil) and plant extracts (Melia azedarach L.,
M. azedarach + summer oil, Schinus molle L., S. molle + summer oil) were
tested on the predator of pea
r psyllae insect Anthocoris nemoralis F. and the
parasite Trechnites psyllae R. in the Mokhtaria research station, agricultural
research center at Homs during the season 2011.
The study was conducted at the growing season 2009 in one of an orchard
in Abu-Al-Khaseeb region – Basrah, studied the effects of spraying of GA3
concentration of 25 mg. l-1 and spraying of liquorice extract concentration (5,
10) g.l-1 and sprayin
g of Roselle extract concentration (15, 20) g.l-1 as well as
compared treatment (spraying with distilled water) in two stage hbabok and
Kemri on fruit drop and qualities of Braim cultivar, showed results that the
spray in hababok stage and treatment of GA3 concentration 25 mg.l-1 increased
of weight and size of the fruit significantly and did not show significant
differences between the spray at the stage of hababok and Kemri in influencing
the T.S.S., while treatment of spraying liquorice extract concentration of 5 gm.l-
1 increased total soluble solids and dry matter significantly, werever spraying at
the stage of Kemri with GA3 increased significantly in water content of fruits,
while sprarying in hababok stage increased in dry matter content of the fruits
and did not show significant differences between the results of treatments or
the stage of spraying in effect of Drop fruits for a cultivar of Braim through the
stages of growth and maturity (Khalal, Rutab and Tammar) this results
confirms that the phenomenon of drop fruit under the influence of genetic type
male and female cultivar.
The efficacy of insecticide and plant extracts were tested against beet flea
beetle, Chaetocnema tibialis (Illiger) during 2008 and 2009 seasons. Six
pesticides were evaluated against beet flea beetle, results showed that Cyperino
gave the highest
effective percentage (90.88) followed by Cypermethrin
(90.69%), in comparison with Nimadol (49.35%) after two weeks of treatment.
Four plant extracts were evaluated against beet flea beetle in comparison with
Sopreen. Results showed that Melia azedarach L. extract gave the highest
effective percentage (60.81) followed Styrax officinalis L. leaves and branches
and Capsicum annuum L. extracts by 31.35, 28.44 and 16.57, respectively, in
comparison with Sopreen (58.55%) after 7 days of treatment. Percentage of
efficacy decreased gradually by increasing the period of exposure after
treatment for plant extracts from 63.19% after 3 days to 51.80% after 10 days
of Melia azedarach L. extract. Whereas the efficacy percentage of Sopreen
increased from 41.67% after 3 days to 74.57% after 10 days of treatment.
The research was conducted in Al- Mokhtaria Research
Station, Agricultural Research Center, Homs, Syria during season
2016. The efficacy of some plant extracts (Melia azedarach L.,
Schinus molle L., Styrax officinalis L., Eucalyptus camaldulensis
De., Nerium oleander L.) were tested against Stephanitis pyri F.
(Tingidae: Heteroptera) and compared with traditional insecticides
(Cypermethrin, Chlorpyrifos Ethel).
This research has been applied to compare the efficacy of the use
of pre-planting with a sensitive variety of tomato OXN93 as a trap
crop with the use of the extracts of M. azedarach , E.
camaldulensis and C. maculatum where Diazinon a treated con
trol,
in reducing the infection and the reproduction rate of the root-knot
nematodes M. javanica on tomato (var. Bestona) in pots.
The bio-effect of anise oil and its fruit extracts(alcoholic and
aqueous extract) to control the cowpea beetle, Callosobruchus
maculatus that infest stored leguminous crops was investigated. The
study was conducted according to three treatments: e
vaporation,
direct spray of insects and food spray. The anise oil was used at
different concentrations from 0.05 to 5%. Whereas, the aqueous and
.alcoholic fruit extracts were used as 30%.
This study was conducted in order to evaluate the efficacy of the aqueous extracts
of three plants (Melia azedarach L., Smilax asepra L. and Styrax officinalis L.),
three pesticides (acetamiprid, abamectin and pyridaben) and releasing of two
preda
tors (Phytoseiuls persimilis Athias–Henriot and Stethorus gilvifrons Mulsant)
in controlling of Tetranychus urticae Koch populations in tomato greenhouse.
