A Note on a Laboratory Technique for Testing Fungicides against Coffee Berry Disease

Abstract

Many attempts have been made to evaluate fungicides in the laboratory for their possible use against coffee berry disease. For example, during period 1957-58, the writers (unpublished data) carried out a series of screening tests with over 20 fungicides, using as criteria the depression of mycelial growth rate; the reduction in germination on both agar films and on berry surfaces; the reduction in formation of appressoria; and the reduction in lesion production on berries, all over a wide range of concentrations of the fungicides used. At the same time Bock (1963) was evaluating the field performance of some of these in an extensive series of comparative field trials.