Hostname: page-component-586b7cd67f-dsjbd Total loading time: 0 Render date: 2024-11-26T00:18:53.448Z Has data issue: false hasContentIssue false
  • English
  • Français

The Incidence of Climatic Conditions Favourable to Coffee Berry Disease in Kenya*

Published online by Cambridge University Press:  03 October 2008

J. M. Waller
J. M. Waller
Affiliation:
Coffee Research Station, Ruiru, Kenya
Get access Rights & Permissions [Opens in a new window]

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.

Type
Research Article
Information
Experimental Agriculture , Volume 7 , Issue 4 , October 1971 , pp. 303 - 314
Copyright
Copyright © Cambridge University Press 1971

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Griffiths, E., Gibbs, J. N. & Waller, J. M. (1971). Ann. appl. Biol. 67, 45.CrossRefGoogle Scholar
Griffiths, E. & Waller, J. M. (1971). Ann. appl. Biol. 67, 75.CrossRefGoogle Scholar
Huxley, P. A. (1965). Weather 20, 84.CrossRefGoogle Scholar
Huxley, P. A. & Waller, J. M. (1971). Expl Agric. 7, 205.CrossRefGoogle Scholar
Kirkpatrick, T. W. (1935). The climate and eco-climates of coffee plantations. Amani Mem. Crown Agents.Google Scholar
Liddell, H. F. & Wootten, N. W. (1957). Quart. J.R. met. Soc. 83, 263.CrossRefGoogle Scholar
Mulinge, S. K. (1970). Ann. appl. Biol. 65, 269.CrossRefGoogle Scholar
Nutman, F. J. & Roberts, F. M. (1960). Trans. Br. mycol. Soc. 43, 643.CrossRefGoogle Scholar
Woodhead, T. (1968). Ann. appl. Biol. 62, 451.CrossRefGoogle Scholar