The Incidence of Climatic Conditions Favourable to Coffee Berry Disease in Kenya
- 3 October 1971
- journal article
- research article
- Published by Cambridge University Press (CUP) in Experimental Agriculture
- Vol. 7 (4), 303-314
- https://doi.org/10.1017/s0014479700023309
Abstract
SUMMARY 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 prolonged 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 dry to stop disease development were used in determining infection at different times of the year.Keywords
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