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Register a new userEfficacy of Some Plant Extracts Against Pear Lace Bug Stephanitis pyri (F.) in Pear Orchard
تقييم كفاءة بعض المستخلصات النباتية في مكافحة حشرة نمر الأجاص (Stephanitis pyri (F حقلياً
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نفذ البحث في محطة بحوث المختارية التابعة لمركز بحوث حمص خلال موسم 2016. اختبرت كفاءة بعض المستخلصات النباتية (الأزدرخت Melia azedarach L, الفلفل المستحي Schinus molle L, الأصطرك Styrax officinalis L, الأوكاليبتوس Eucalyptus camaldulensis De, الدفلة Nerium oleander F) في مكافحة حشرة نمر الإجاص (Stephanitis pyri (F.) (Tingidae Heteroptera مقارنةً مع المبيدات التقليدية سايبرمثرين و كلوربيرفوس ايتيل).
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).
References used
ABOUD, A.S. 2014. Antimicrobial activities of aqueous and ethanolic extracts from Nerium Oleander L. Used in the treatment of burns infections isolates, Journal of Pharmaceutical, Chemical and Biological Sciences, 2(4) :248 – 258
AYSAL, T. and Kivan, M. 2008- Development and population growth of Stephanitis pyri (F.) (Heteroptera: Tingidae) at five temperatures, Journal of Pest Science, 81(3): 135-141
BAGARI, M.; Bouhaimi, A.; Ghaout, S. and Chihrane, J. 2013- The toxic effects of Nerium oleanderon L. larvae of the desert locust Schistocerca gregaria (Forskal, 1775) (Ortoptera, Acrididae), Zool. Baetica, 24: 193-203
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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 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.
This investigation carried out in 2012-2013,in department of plant protection-
Damascus Unv., to study the effect of ethanol and water extracts of Allium sativum L.,
Inula viscos L., Thymus vulgaris L. and Melia azedarach L., in inhibition mycelium
growth of fungi Alternaria alternata and Fusarium oxysporum and compared with
fungicides (carbendazim and chlorothalonil) on PDA in the laboratory. The result showed
that ethanol extracts of studied species gave significant inhibition to growth fungi
compared with the control. The ethanol and water extract of the Allium sativum gave the
superior effect inhibition to F. oxysporum where gave 100% inhibition at 600 and 1000
mg/l. at respectively, and gave100% inhibition to A. alternata at 1000 mg/l. Followed with
the ethanol extract of Inula viscos. While, the ethanol and water extract of the Melia
azedarach gave the lowest inhibition to growth study fungi. Where didn’t gave 100 %
inhibition to F. oxysporum and A. alternata at 1000 mg/l. On the other hand, the ethanol
extract of Thymus vulgaris gave moderate inhibition to F. oxysporum, while the inhibition
of A. alternata was little. The ethanol extract of tested plants gave the superior effect
inhibition to both fungi compared with water extracts. On the other hand, the obtained
results showed that carbandazim gave the superior inhibition for F. oxysporum ,where gave
100% inhibition at concentration 120 mg/l. While the fungicide chlorothalonil gave the
lowest inhibition to F. oxysporum. At contrast, the fungicide chlorothalonil gave the
highest inhibition to A. alternata at used concentration. Where cause 100% inhibition at
150 mg/l. On the other hand, Effect of plant extracts and fungicides increased with increase
of concentrate. We can arranged the effect of plant extraction at the values (ED50): Allium
sativum L., Inula viscos L., Thymus vulgaris L. and Melia azedarach L., Therefore we
recommended to use the ethanol extract of the Allium sativum L., Inula viscos L. as
environment friendly fungicides.
This investigation was conducted at the Pome and grapevine
Division in Sweida governorate in 2014-2015. Four introduced
pear cultivars (Anjou, Bartlett, Red Bartlett and Beurre Bosc) were
studied, through fruiting and growth organs, fertility, average of
fruit weight, and the yield at P< 0,05.
20 local and introduced varieties of pear grown in Sweida during 2007 to
2010 were assessed in terms of flowering time, maturity time, accurate
morphological characterization for shoots, leaves, flowers and fruits and fruit
chemical analysis (tota
l soluble solids, total sugar and tetratable acidity) as well
as to determine firmness of fruit flesh and tree yield.
Results showed that flowering time was at mid April in most varieties, and
the varieties were divided into three groups according to their mature date:
early varieties maturated during July, mid varieties maturated during August
and late varieties maturated during September. However, A variety of
Conference was required artificial ripening.
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