Document Details

Document Type : Thesis 
Document Title :
survey of rise insect infestation in jeddah city and the efect of some plant oils on sitophilus oryzae l.
حصر للاصابة الحشرية للأرز في مدينة جدة وتأثير بعض الزيوت على سوسة الأرز
 
Subject : Biological 
Document Language : Arabic 
Abstract : Survey, estimation of insect infestation and study the seasonal abundance were carried out for the most important stored insects that attack basmati, australian and american rice in different southern, middle and northern stores in Jeddah province from 15\11\2007 to 15\10\2008. Results obtained summarized the following: The most dispersion insects were Oryzaephilus surinamensis (L.) followed by Rhizopertha dominica (F.), Tenebrio molitor (L.) and the lowest disersion insect was Sitophilus oryzae (L.) which presented only on some southern and middle stores, on basmaty rice. Monthly significantly fluctuations on population of insects were recorded. The number of insects increased and decreased gradually recorded different numbers of peaks. The highest number of insects was presented on basmaty rice, while the lowest number on australian rice. The highest level of infestation was in southern company stores and the lowest level on northern supermarket stores. Furthermore, laboratory experiments were carried out on the biology department, Faculty of Science, king AbdulAziz University in Jeddah, to study the effect of some plant oils such as clove oil and neemAzal T5% on the rice weevil adults age three weeks. Results obtained showed the following: Both neemAzal T5% and clove oil caused significantly repellent effect on treated S.oryzae adults age 3 weeks .The effect was also increased significantly by increasing the concentrations. NeemAzal recorded the lowest repellent effect on S.oryzae adults as compared by clove oil. NeemAzal T 5% caused significantly increasing on the mortality percentage of adults and appeared positive correlation with all of concentrations, adult age and exposure period. Clove oil caused the highest mortality percentage of adults age 5 weeks (95%) at 5% concentration. Concerning, the effect of both neemAzal T5% and clove oil on S.oryzae adults three weeks age exposed to treated wheat grains, the both compounds caused highly significantly reduction in deposited eggs, number of adults F1 generation emerged from treated grains, their weight and highly significantly prolonged the total developmental period. Clove oil have higher effect than neemAzal-T 5%. From these results it could be concluded that neemAzal–T 5% and clove oil can be used for controlling the grain weevil on stored grains. 
Supervisor : Prof. Dr. Shadia Mostafa Taha Omara 
Thesis Type : Master Thesis 
Publishing Year : 1430 AH
2009 AD 
Co-Supervisor : Dr. Zarrag Isa A. AL-Fifi 
Added Date : Sunday, December 5, 2010 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
نهى مصطفى التلمسانيALTILMISANI, NUHA MUSTAFAResearcherMaster 

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