I have participated in the following symposia, conferences, meetings, studies and committees organized and sponsored by Sudanese and international organizations.

       1. The 2nd. joint meeting of the Entomological Societies of America. Canada and       Quebec, Montreal, 1972.

       2. Workshop on Aquatic Weeds in the Sudan – Sudanese NCR and American NAS,   Khartoum, 1975.

       3. The 19th. Annual Conference of the Philosophical Society of the Sudan – Water     Quality and Risks of Pollution – Philosophical Society of the Sudan and NCR,  Khartoum, 1976.

       4. Committee on the evaluation of the Sudanese, German Water Hyacinth Control      Project – Ministry of Agriculture and Irrigation and the German GTZ, Khartoum,            1977.

       5. Committee on Research and Training in Water Hyacinth Control – Ministry of   Agriculture and Irrigation and the German GTZ, Khartoum, 1977.      

       6. Symposium on Weed Research in the Sudan – University of Gezira. The      Agricultural Research Corporation and The University of Hohenheim, 1978.

       7. Symposium on Crop pest Management – Ministry of Agriculture and Irrigation and             Faculty of Agriculture, Khartoum, 1978.

       8. The 1st. Annual Conference on Research for Agricultural Development –     University of Juba and Southern Region Ministry of Agriculture and Natural Resources, Juba, 1981.

       9. The 3rd. Annual Meeting and Conference of the African Association of Insect       Scientists, Khartoum, 1981.

     10. Programme, Building of the Modern Science – Based State, NCR, Khartoum         1981.

     11. The 2nd. Annual Conference on Research for Agricultural Development – University of Juba and the Southern Region Ministry of Agriculture and Natural   Resources, Regional Ministry of Agriculture and Natural Resources, Juba, 1982._

     12. Natural Grain Storage Seminar – NCR and FAO. Khartoum, 1982.

     13. Meeting to discuss Problems of Potato Production in the Sudan, Agricultural         Bank, Khartoum, 1982.

     14. Development of the Master Plan for the Sudanese – German Services for    Vegetable and Fruit Farmers 1986.

     15. Symposium on Oasis Agricultural Systems. Tunisian Ministry of Agriculture and   the French INRA, Tozeur, Tunisia, Nov. 1988.

     16. International Study Workshop on Newer Methods in the Isolation,   Characterization and Evaluation of Biopesticides. USA NRC, BOSTID and   ICIPE,Nairobi, Kenya, April 1990.

     17. Workshop on the Implementation of the International Code of Conduct on the Distribution and Use of Pesticides, Khartoum, Sudan 15-19 September 1991.

     18. Workshop on the control of the African Migratory locust on Gum Arabic acacia,    PPD and Gum Arabic Comp. Khartoum, 15-19 May 1992.

     19. Objectives-oriented Project Planning (ZOPP) workshop for the discussion of the   plan of operation of the Sudanese German integrated services, Phase III,       Khartoum, Sudan January 1992.

20. Symposium on the integrated biological control of the desert locust, University of   Juba and the Association of the Arab Research Council, Khartoum, 3-8 October,   1995.

21. Annual Conference of the Entomological Society of America, Las Vegas, 17-22   December 1995.