Ahmed S. Hashem

ORCID: 0000-0002-6551-3451
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Research Areas
  • Insect Pest Control Strategies
  • Insect and Pesticide Research
  • Insect Utilization and Effects
  • Insect Resistance and Genetics
  • Agricultural pest management studies
  • Essential Oils and Antimicrobial Activity
  • Entomopathogenic Microorganisms in Pest Control
  • dental development and anomalies
  • Insect-Plant Interactions and Control
  • Moringa oleifera research and applications
  • Oral microbiology and periodontitis research
  • Insect behavior and control techniques
  • Orthodontics and Dentofacial Orthopedics
  • Forest Insect Ecology and Management
  • Coleoptera Taxonomy and Distribution
  • Genetics and Plant Breeding
  • Dental Research and COVID-19
  • Heavy Metal Exposure and Toxicity
  • Trace Elements in Health
  • Craniofacial Disorders and Treatments
  • Dental Radiography and Imaging
  • Cleft Lip and Palate Research
  • Genomics, phytochemicals, and oxidative stress
  • Biosensors and Analytical Detection
  • Soybean genetics and cultivation

Agricultural Research Center
2020-2025

Minia University
2020-2021

Acetamiprid (ACDP) is a widely used neonicotinoid insecticide that popular for its efficacy in controlling fleas domestic settings and pets. Our study aims to offer comprehensive examination of the toxicological impacts ACDP prophylactic effects cinnamon nanoemulsions (CMNEs) on pathological, immunohistochemical, hematological analyses induced by taking twice ‎week 28 days. Forty healthy rats were divided into four groups (n = 10) at random; first group served as control rats; second...

10.1186/s12917-024-04084-x article EN cc-by BMC Veterinary Research 2024-06-12

Insect glutathione S-transferases (GSTs) serve critical roles in insecticides and other forms of xenobiotic chemical detoxification. The fall armyworm, Spodoptera frugiperda (J. E. Smith), is a major agricultural pest several countries, especially Egypt. This the first study to identify characterize GST genes S. under insecticidal stress. present work evaluated toxicity emamectin benzoate (EBZ) chlorantraniliprole (CHP) against third-instar larvae using leaf disk method. LC50 values EBZ CHP...

10.3390/toxics11060542 article EN cc-by Toxics 2023-06-19

This study sought to ascertain if zinc nanoparticles (ZnNPs) could lessen the toxicity of azoxystrobin (AZ). naturally occurring methoxyacrylate is one most often used fungicides in agriculture male albino rats. Six sets 60 mature rats were randomly assigned: control (distilled water), Azoxystrobin formulation (AZOF), nano-formula (AZON), ZnNPs, AZOF + and AZON ZnNPs. Blood tissues obtained for further immunohistochemical, pathological, biochemical examination. The results showed that...

10.1080/13510002.2025.2491318 article EN cc-by Redox Report 2025-04-20

درست هذه الورقة البحثية دور الابتكار المفتوح في دعم العلاقة بين البراعة التنظيمية والأداء التنظيمي، وذلك المؤسسات المستقلة القطاع العام الأردن، وعددها 25 منظمة من (مؤسسة وهيئة وصندوق). استخدم نموذج العينة العشوائية البسيطة لمجتمع حجمه 53 منظمة. وزعت استبانة معدة لهذه الغاية على 600 موظف الإدارة العليا والوسطى (مدير مديرية، مساعد مدير، رئيس قسم) لمرة واحدة فقط (البيانات المقطعية) ورجع منها 392 بنسبة 65% بعد استبعاد 35 غير صالحة. وتم استخدام بطاقات الأداء المتوازن لقياس المتغير التابع (الأداء...

10.35516/jjba.v21i3.2350 article AR Jordan Journal of Business Administration 2025-05-09

The insecticidal activity is the result of a series complex interactions between toxic substances as ligands and insect’s enzymes targets. Actually, synthetic insecticides used in pest control programs are harmful to environment may affect non-target organisms; thus, use natural products agents can be very attractive. In present work, effect aniseed (Pimpinella anisum L.) essential oil (EO) its nanoemulsion (NE) against red flour beetle Tribolium castaneum, has been evaluated. To assess EO...

10.3390/molecules25204841 article EN cc-by Molecules 2020-10-20

Abstract Background Compatibility of entomopathogenic nematodes (EPNs) with insecticides is a crucial mainstay integrated pest management (IPM) programs. This study was designed to evaluate the joint action EPN species and when employed deter 3rd 4th larval instars cabbage white butterfly, Pieris rapae L. (Lepidoptera: Pieridae) under laboratory conditions. EPNs [ Steinernema carpocapsae (All strain), S. feltiae (Filipjev), Heterorhabditis bacteriophora (HP88), H. (Ar-4)], at concentrations...

10.1186/s41938-021-00498-z article EN cc-by Egyptian Journal of Biological Pest Control 2021-12-01

The internal-feeding insect, Sitophilus oryzae L. (Coleoptera: Curculionidae) is a ubiquitous and significant pest that burrows into grain has been stored. larvae of weevils feed mostly on the germ, eliminating portion protein vitamins, whereas adult primarily endosperm, decreasing amount carbohydrates. In this study, S. infestation was monitored five types grains: rice, wheat, oat, maize, barely. grains were kept at 32 ± 2 °C, 65 5% RH, 14:10 (L:D) h photoperiod. results revealed both wheat...

10.21608/jppp.2024.258681.1201 article EN Journal of Plant Protection and Pathology /Journal of Plant Protection and Pathology 2024-01-27

The red flour beetle, Tribolium castaneum, is an important pest in wheat and maize mills.The goal of this study to determine the level risk via examining survival rate, oviposition, development phases pest.The shortest durations were recorded when larvae reared on whole followed by without bran (22.8±0.31 24.7±0.32 days, respectively).The longest corn only (31.1±0.28 31.5±0.34days, highest larval rate was 95% flour, whereas lowest one 94% both only.Meanwhile rates 84% 83% only,...

10.21608/jppp.2023.227527.1167 article EN Journal of Plant Protection and Pathology /Journal of Plant Protection and Pathology 2023-08-19

Essential oil (EO) nanoemulsion is a new approach to formulate and convey insecticides minimize some of the common shortcomings associated with conventional formulations synthetic also essential oils. The aim present was develop an oil-in-water (O/W) oils chamomile (Matricaria chamomilla L.) cumin (Cuminum cyminum L.), assess their lethal sublethal toxicity red flour beetle Tribolium castaneum (Hersbt). nanoemulsions EO were characterized by droplet sizes 341.4 387.1 nm for cumin,...

10.21608/jppp.2021.149515 article EN cc-by Journal of Plant Protection and Pathology /Journal of Plant Protection and Pathology 2021-01-01

Three essential oils extracted from German chamomile, Matricaria chamomilla, Anise, Pimpinella anisum and cumin, Cuminum cyminum were assessed against two of the major stored grain insect species, Sitophilus oryzae (L.) Tribolium castaneum (Herbst).The chemical composition was determined by gas chromatography (GC) GC/mass spectrometry.The bioactivity both species.A concentration 100000 ppm, caused 100% mortality S.oryzae after 96 h. exposure, whereas, T. more tolerant to than S. oryzae.At...

10.21608/jppp.2017.46601 article EN Journal of Plant Protection and Pathology /Journal of Plant Protection and Pathology 2017-10-01

The Khapra beetle, Trogoderma granarium Everts (Coleoptera: Dermestidae), is a significant insect pest of grains, cereals, and other stored goods.One the effective ecological components influencing an performance host plant.The effects four oil seed cultivars five cereal grains were assessed for their nutritional indices life table parameters T. under laboratory conditions.The developmental time immature stages was shorter on oat grain (33.1±0.76 days) longer flax (63.1±1.69 than...

10.21608/jppp.2023.247200.1192 article EN Journal of Plant Protection and Pathology /Journal of Plant Protection and Pathology 2023-12-01

The life history, development time, survival rate and other activity parameters of Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae) were studied on five flour commodities at 30 ± 1°C, 75 5% RH 12L:12D photoperiod in two separate experiments (choice non-choice assays). larval stage exhibited the shortest duration wheat grains (11.7±0.3 days) followed by rice (15.6 0.16 barely (16.3 0.26 days), where-as longest was corn (20.6±0.40 oat (19.5±0.43 days). Moreover, highest rates barley,...

10.21608/jppp.2023.227640.1168 article EN Journal of Plant Protection and Pathology /Journal of Plant Protection and Pathology 2023-08-22

AIM: The aim of the study was to investigate effectiveness using micro-osteoperforations (MOPs) or piezocision in accelerating tooth movement, during canine retraction, compared standard retraction. PATIENTS AND METHODS: A split-mouth design carried out with two Groups and B. Each group contained 10 patients; each patient, one side used as a control contralateral received either MOPs (Group A) B). assessment data were collected by direct intraoral measurements, every 2 weeks, over 3 months...

10.3889/oamjms.2021.6173 article EN Open Access Macedonian Journal of Medical Sciences 2021-08-07
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