Pest problems of wheat in Sudan
1994
Sharaf Eldin, N. (Agricultural Research Corporation (ARC), Wad Medani (Sudan)) | Omer Kannan, H. (Rahad Research Station, El Fau (Sudan))
In Sudan, wheat aphids, termites, and the spotted sorghum stem borer are the main insect pests of wheat. Considerable research has been conducted in close collaboration with the ICARDA/Nile Valley Regional Program. All programs were oriented towards an integrated pest management approach and addressed its important components. Intensive work was carried out on population dynamics, relative distribution, and abundance of the natural enemies of aphids during both the growing and off-seasons. Investigations were initiated to investigate the possibility of early augmentation with natural enemies for biological control. Screening of a great number of breeding lines against aphids showed some promise, but a closer cooperation by all relevant disciplines is still needed In the area of chemical aphid control, the economic threshold level was established as 35 infested plants. The search for lower rates and safer chemical and botanical insecticides continued with emphasis on seed-dressing materials and granulated insecticides. A breakthrough in protection of wheat is anticipated through the use of a new seed-dressing material in the next few years. For termites, cultural measures have been successfully utilized for control with outstanding results
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