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Survey Of Cereal Aphids And Their Natural Enemies And Effect Of The Predator Coccinella septempunctata On Biological Suppression Of Cereal Aphids In Al- Jabal Al-Akhdar Region, Libya
- Hana S. EL-aish; Ibrahim M. EL-ghariani
and Abdul hamid H. AL-mabruk.
- Plant Protection Institute, Faculty of Agriculture, Omar AL-Mukhtar University, P.O. Box 99 EL-Beida, Libya.
Abstract
The study was conducted in order to know the cereal aphids and their natural enemies in AL-Jabel AL-Akhdar region (north east of Libya). The data registered Rhopalosiphum padi , Schizaphis graminum , Sitobion avenae also their presence and distribution on the different location of the area of the study was showed. The natural enemies were the predators Coccinella septempunctata , Chrysopid species and the parasitoids Diaeretiella rapae and Aphidius matricariae. Role of the predator C. septempunctata in biological suppressing of cereal aphids showed that the eggs last 2-3 days and the 1st, 2nd, 3rd and 4th larval instars were lasted 3,2,2,4 days, respectively, the pupal stage lasted 8 days at the room temperature. The adult predator consumed 46.13 aphids, while the larva consumed 26.9 aphids daily. Also, the data showed that there was no significant difference in the predation efficacy during 1st and 2nd weeks of the life span of adult predator and the 4 larval instars.
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The Arab Scientists in Cooperation with The High Institute of Marine Research. Publish all the researches abstracts, which presented in The Regional Workshop on Marine Sciences and Natural Resources, Tishreen University, Lattakia, Syria, 25-26 May 2004.
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The Arab Scientists in Cooperation with The Egyptian Society for Biological Control of Pests . Publish all the researches abstracts, which presented in The First Arab Conference of Applied Biological Pest Control, Cairo, Egypt, 5-7 April 2004.
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The First International Symposium on Environnement protection for development Biotechnological aspects. Fez, December
15 – 17, 2004.
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The Second Syrian-Egyptian conference in the Agriculture and Food.
Agriculture Faculty, Al-Baath university, Homs, Syria. 25-28 April, 05
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Current Status of Plant Protection in Yemen and Future Strategy.
Faculty of Agriculture, Sana'a University, Sana'a, yemen. December 18-20/2004
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The 9th International Conference of the Orthopterists’ Society
Canada, on August 14 19, 2005
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The First Arab Conference on Applications of Biological Control of Pests in Arab Countries
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New Workshop
Middle-East Academy for Medicine of Ageing
First Annual Middle-East Age & Aging Meeting
8-11 April, 2004
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| Publications |
Arab Society for Plant Protection (ASPP) in Cooperation with The Arab Scientists
Publish all the researches abstracts, which presented in the Eighth Arab Congress of
Plant Protection, held in Faculty of Agriculture, Omar Al-Mukhtar University, El-beida
City, Libya, October 12-16,2003
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