Document Details

Document Type : Project 
Document Title :
Field and laboratory study of the insect complex aphids and natural enemies in agro-ecosystem of the clover Hejaz region of western Saudi Arabia.
دراسة حقلية ومعملية على حشرات معقد المن وأعداءه الطبيعيين في النظام البيئي الزراعي للبرسيم الحجازي بالمنطقة الغربية من المملكة العربية السعودية.
 
Document Language : Arabic 
Abstract : Have been evaluated and laboratory fields in order to identify and characterize the dynamic fluctuation in the number of communities to the main insects of alfalfa and natural enemies using nets Corethra, lasted 32 weeks between the months of March and October 2000. We conducted this study, Research Station Agriculture Organization of the Faculty of Meteorology, Environment and Arid Land Agriculture in Wadi Huda al-Sham, and has been field visits are weekly for random sampling communities of communities of arthropods (insects, spiders, true) involved, and then taken to the laboratory in order to be monitored and accounted for mathematically and then examined in the lab, arranged depending on the grade and classification of scientific factions. The results of this study showed that there are good cookies, between the numbers of insect communities of alfalfa and natural enemies, and who knew him to prevail in the two agro-ecosystem of alfalfa Medicago sativa. Two Therioaphos trifolii and Macrsiphum. Included the results obtained during the execution of the research include: 1 - have been identified volatility dynamic communities of insects and natural enemies of alfalfa during the period to execute the search and using the net Corethra. 2 - It has been proved that there is good agreement (up and down) in the fluctuation in the number of communities of alfalfa and natural enemies. 3 - parasites of parasites were recorded on the clover trace family Braconidae, It was also clear that these parasites of parasites unilateralism. 4 - is not detected or get any parasites on parasites secondary key, and not isolate the microbes nurse. 5 - has been detected and a low rate of parasitism up to the highest 21.5%. 6 - Laboratory studies have shown the value of information concerning the amount of egg-laying of the female insect Abu Eid strew as each containing on average 300 ± 20 eggs, and this will add to the generations of good. 
Publishing Year : 1420 AH
2000 AD 
Sponsor Name : kau 
Sponsorship Year : 1420 AH
2000 AD 
Added Date : Wednesday, April 30, 2008 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
خالد محمد الغامديalghamdi, khaled mohammedInvestigatorDoctorate 

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