كتابة النص: الأستاذ الدكتور يوسف أبو العدوس - جامعة جرش قراءة النص: الدكتور أحمد أبو دلو - جامعة اليرموك مونتاج وإخراج : الدكتور محمد أبوشقير، حمزة الناطور، علي ميّاس تصوير : الأستاذ أحمد الصمادي الإشراف العام: الأستاذ الدكتور يوسف أبو العدوس
فيديو بمناسبة الإسراء والمعراج - إحتفال كلية الشريعة بجامعة جرش 2019 - 1440
فيديو بمناسبة ذكرى المولد النبوي الشريف- مونتاج وإخراج الدكتور محمد أبوشقير- كلية تكنولوجيا المعلومات
التميز في مجالات التعليم والبحث العلمي، وخدمة المجتمع، والارتقاء لمصاف الجامعات المرموقة محليا واقليميا وعالميا.
المساهمة في بناء مجتمع المعرفة وتطوره من خلال إيجاد بيئة جامعية، وشراكة مجتمعية محفزة للابداع، وحرية الفكر والتعبير، ومواكبة التطورات التقنية في مجال التعليم، ومن ثم رفد المجتمع بما يحتاجه من موارد بشرية مؤهلة وملائمة لاحتياجات سوق العمل.
تلتزم الجامعة بترسيخ القيم الجوهرية التالية: الإلتزام الإجتماعي والأخلاقي، الإنتماء،العدالة والمساواة، الإبداع، الجودة والتميّز، الشفافية والمحاسبة، الحرية المنظبطة والمستقبلية.
Cut-shoot bioassay test was used to study the significance of three flavonoids as aphicides against the woolly apple aphid (WAA), Eriosoma lanigerum (Hausmann). The used flavonoids were two flavanols that are quercetin dehydrate and rutin hydrate, but rutin hydrate is a glycoside of quercetin dehydrate. In addition to one flavanone that was naringine. These flavonoids were used at three concentrations; 100 ppm, 1000 ppm and 10,000 ppm. Results showed that the three tested flavonoids were active as aphicides against the target species and that mortality to nymphs was higher than that obtained against apterous adults. Increasing the concentration of the flavonoids resulted in a remarkable increase in nymphs mortality. However, rutin hydrate is more toxic to WAA than quercetin dehydrate and naringin. The three flavonoids had slight effect on the sole parasitoid of WAA, Aphelinus mali compared with effect caused by imodacloprid insecticide. Quercetin dehydrate, rutin hydrate and naringine can be used as botanical insecticides and incorporated into integrated management programs of the aphid
Journal of Agricultural Science, Vol. 4, No. 2; 2012
While enhancing the searching ability of a natural enemy can give a major improvement in host population suppression, it is important to demonstrate selectivity in favor of the third trophic level when changes, such as added floral resources, are made to agro-ecosystems to enhance biological control efficacy. To explore this question, a pea-aphid endoparasitoid, Aphidius ervi, and its hyperparasitoid, Dendrocerus aphidum, were used to test the effects of prior feeding with buckwheat nectar on searching behavior of both the parasitoid and hyperparasitoid. Digital video was used to record behavior and data were scored and analyzed using Observer Video-Pro software. A. ervi females in nectar treatments spent a higher proportion of their time actively searching than those with access to water only. Fed parasitoids antennated, stung and groomed significantly more than unfed female parasitoids, and spent almost twice as much time attacking and carried out nearly twice as many attacks as unfed parasitoids. D. aphidum spent the greatest proportion of time attacking potential hosts in both ‘fed’ and ‘unfed’ treatments. However, although fed females spent a significantly longer time antennating, there was no significant difference in walking or grooming between treatments. Unfed female hyperparasitoids spent significantly more time stationary than fed females. The results demonstrate that the searching efficiency of both third and fourth trophic level parasitoids is enhanced by access to floral nectar. Nectar provision can therefore potentially have positive or negative effects on biological control, depending on the relative proportion of each species
Biological Control 57 (2011) 79–84