SAHEL WEATHER AND CROP SITUATION - September 1999
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Following generally above normal rains in July over most agricultural zones, growing conditions remained favourable in August in the Sahelian countries. During the three dekads of August, rainfall was generally above normal and cumulative rainfall in August exceeds 100 mm everywhere in the main producing zones of the Sahel and in most cases in northern desert areas (see map on page 4). Unusually heavy rains were registered in Burkina Faso, Chad, Gambia, Mali, Mauritania, Niger and Senegal, causi ng substantial flooding. These abundant rains benefited crop and pasture development particularly in Mauritania, northern Senegal and Mali, although excess water may reduce yield potential in flooded fields in low-lying areas. Crop prospects are generally favourable. However, the outcome for long cycle varieties in the Sudanian zones (Burkina Faso, Niger and Chad) will depend on the continuation of the rains in September. Pastures are abundant in the region. Satellite imagery for the first days of September indicates that precipitation decreased somewhat over the Sahel but remained widespread and still above average over most parts of Burkina Faso and Chad. Pest infestations (mostly grasshoppers and army worms) are reported in Cape Verde, Niger and Senegal, and treatments have been undertaken in some areas. Stemborers caused damage on millet in northern Burkina Faso. Although no Desert Locusts have been reported from any country in the region, small-scale breeding may occur. No si gnificant developments are expected.