Berry Disease (CBD)
has extensive research experience into this disease in East Africa. Recent
research has enabled the causative pathogen, Collotetrichum kahawae,
to be properly characterised and its ecology understood. It is related
to the ubiquitous but less pathogenic C. gloeosporioides from which
it presumably evolved as a pathogen of wild coffee species in the
Lake Victoria area.
CBD has spread slowly across Africa to affect most arabica producing areas
but does not (yet) occur outside Africa. CABI Bioscience has an
extensive collection of isolates of the disease from across Africa. CABI
Bioscience has participated in research seeking to establish possibilities
for biocontrol of the disease using microbial antagonists which occur
naturally in the coffee bark.