Abstract
The demand for pyrethrum (Chrysanthemum cinerariifolium) resulted in a greatly increased production of this profitable crop in Kenya during the War. It has been cultivated commercially in Kenya since 1928. From 1,864 tons in 1938, the yield rose to 7,409 tons from 52,837 acres in 1945. This acreage is concentrated in a few areas in the Highlands, most of it at an altitude between 6,000 ft. and 9,000 ft. Minor losses, due to root and crown rot, are of common occurrence, but until 1946 the crop had escaped any serious disease in spite of the continuous and intensive cultivation to which it has been subjected.
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NATTRASS, R. A Disease of Pyrethrum in Kenya. Nature 160, 120–121 (1947). https://doi.org/10.1038/160120c0
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DOI: https://doi.org/10.1038/160120c0
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