المنشورات و المؤلفات

Of the various plant extracts from 10 plant species tested against larvae of Culex pipiens in the laboratory, only extracts from Solenostemma argel exhibited larvicidal activity. A chloroform leaf extract of S. argel exhibited relatively high...
Chemical insecticides released into the environment may have adverse biological effects. Therefore, there is a need for ecofriendly insecticides for mosquito control. Xerophytic plant extracts that may provide more ecofriendly active component were...
Abstract The development of novel antimicrobial drugs, as well as the discovery of novel compounds able to promote honeybee’s growth, represents major challenges for modern entomology. The main aim of this study was to investigate whether...
Abstract This study reports the ant species that were attracted to rabbit carcasses in three different habitats (agricultural, desert, urban) in the city of Riyadh, Saudi Arabia from May to July 2014. Rabbit carcasses were used as a model for...
A preliminary study was conducted to evaluate the effects of nine methanol fungal extracts on fourth instar larvae of Aedes caspius and Culex pipiens (Diptera: Culicidae). None of the extracts tested showed larvicidal activity except for the...
The aim of this study was to assess the toxicological effects of the ethyl acetate (ETAC) fraction of Cochliobolus spicifer (Nelson) isolated from Phoenix Dactylifera (Linnaeus) using Balb/c mice as an animal model. An acute toxicity study of the C...
An experiment was carried out, firstly, to determine the possible toxicity of Carum copticum (Apiaceae) extract against Culex pipiens (Diptera: Culicidae), and, secondly, to study the histopathological alterations in the midgut of Cx. pipiens as a...
Background: The incidence of mosquito-borne diseases and the resistance of mosquitoes to conventional pesticides have recently caused a panic to the authorities in the endemic countries. This study was conducted to identify native larvicidal...
Background: The incidence of mosquito-borne diseases and the resistance of mosquitoes to conventional pesticides have recently caused a panic to the authorities in the endemic countries. This study was conducted to identify native larvicidal...
Effects of methanol extracts of Xanthium strumarium on different cancer cell lines and on the mortality rates of Aedes caspius, Culex pipiens (Diptera: Culicidae) were investigated. Among the cell lines tested, the Jurkat cell line was the most...
This study describes for the first time the necrophagous Diptera attracted to rabbit carcasses in three distinct habitats in Riyadh, Kingdom of Saudi Arabia (KSA). A mean number of 1,427 flies belonging to 8 families and 16 species were collected...
Invasive species are capable of causing considerable damage to natural ecosystems, agriculture and economies throughout the World. Samsum ant, Brachyponera (Pachycondyla) sennaarensis has been a reason for medical implication and social nuisance...
Endophytic microorganisms are fungi or bacteria which live inside plant tissues or organs, without causing them any harmful symptoms. Indeed, since many are also able to produce substances of biotechnological interest, they may protect the plant...
هناك العديد من المركبات التي تم فصلها من الكائنات الحية الدقيقة، لها تأثيرٌ مضادٌ للميكروبات والأمراض السرطانية على حد سواء. أظهرت نتائج البحث أنّ كل الطرق المستخدمة للكشف عن التأثير الميكروبي فعالةٌ في تحديد فاعلية المستخلص على الميكروبات باستخدام...
The use of synthetic organic pesticides has serious economic, social and environmental ramifications. Thus, this study describes the experiments using botanical and bacterial extracts to control the samsum ant (Pachycondyla sennaarensis). This ant...
Pulicaria genus belongs to the family Compositae. Some species of this genus have been used in traditional Arab medicine as antispasmodic agent. In this study the Pulicaria glutinosa, which is a wild growing shrub in Saudi Arabia have been explored...
The use of entomopathogenic fungi is a promising alternative to chemical control against mosquitoes. In February 2013, two fungi were isolated from the Samsum ant, Pachycondyla sennaarensis, Mayr, (Hymenoptera: Formicidae) collected in Riyadh, KSA....
Larvicidal activity and cytotoxicity of fruit and leaf extracts of the Capparis cartilaginea were evaluated. No previous studies have been reported on the larvicidal activities of crude and column chromatographic fractions of fruit and leaf extracts...
The present study was carried out to evaluate the larvicidal activity and cytotoxicity of Aspergillus sydowi extract. The LC50 calculated of methanol crude extract and fraction 6 was 250.86±4.15 and 56.61±0.89 μg/ml for Aedes caspius and 271.02±7.01...
To grow and reproduce well, animals facing fluctuations in abiotic conditions must adjust their physiology, activity rhythms, and foraging behavior accordingly. The foraging activity and food preferences of the samsum ant Pachycondyla sennaarensis (...
Methanol extracts of different plants namely, Trichodesma africanum (Boraginaceae), Cleome rupicola (Capparceae) and Ochradenus baccatus (Resedaceae), were tested for larvicidal activity against 4th instar larvae of Aedes caspius and Culex pipiens...
A series of naphthyl and tolyl sulfonate ester were synthesized and characterized by H NMR. X-ray single crystal diffraction experiments established the molecular structure of three new sulfonate esters derivatives, and spectral data agree with...
Efficiency of most pesticides is monitored by many factors such as the method of application, the concentrations and the temperature. The study was aimed to investigate the optimal conditions for using Insect Growth Regulator (IGR), cyromazine to...
This study investigates the effect of different concentrations of the growth regulator (Cyromazine), temperature and treatment methods on the reproductive rate, generation lifespan and weight loss of the Southern cowpea weevils Callosobruchus...
Insect pests of stored products constitute a worldwide problem because they reduce the quantity and quality of stored products. In this study we investigated the interactions between different factors that affect the growth of two successive...
In this study we investigated the effects of different cryomazine concentrations and host type on the biology of the southern cowpea weevil Callosobruchus maculatus F. (Coleoptera: Bruchidae). Our results showed that increasing cryomazine...
Overlap of insect growth regulator (cyromazine) concentration, treatment method and rearing temperature was studied on the southern cowpea weevil, Callosobruchus maculatus F. (Bruchidae: Coleoptera), under laboratory conditions. A concentration of 5...
 In Ar-Riyadh Region in the Kingdom of Saudi Arabia (KSA), the Governorates of Al-Zulfi, Al-Ghat and Al-Majmah (north zone), of Al-Hariq, Al-Aflaj and Hawtat Bani Tamim  (south zone), of Hijrat Sa`ad (east zone), of Shaqra, Durma, Al-Qasab,...
Black ant (Samsum), Pachycodyla sennarrensis, stings and injects venom and inflicts allergy (a rare clinical problem) due to its local and systemic reaction, which is considered as a health hazard amongst Saudi society. Thus, black ant is a source...
Invasive species are capable of causing considerable damage to natural ecosystems, agriculture and economies throughout the World. Samsum ant, Brachyponera (Pachycondyla) sennaarensis has been a reason for medical implication and social nuisance...
microorganisms are fungi or bacteria which live inside plant tissues or organs, without causing them any harmful symptoms. Indeed, since many are also able to produce substances of biotechnological interest, they may protect the plant from insect...