Coffee Board of Kenya Monthly Bulletins May 1973

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Date
1973
Authors
Waller, J. M.
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Abstract
Climatic conditions affecting the development of CBD are assessed by measuring wetness within the tree canopy and air temperature.Saturation of the tree canopy necessary, for spore dispersal,occurs most frequently at the tops of trees and the duration of wetness permitting spore germination is most pro longed at night.Night air temperatures are closest to berry temperatures and are important in assessing infection periods.Disease development in 1968 and 1969 was related to the number of infection periods during the growing season.Polythene tree covers which kept trees sufficiently to stop disease development were used in determining infection at different times of the year.
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Monthly Bulletin
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