Arneson, P.A. 2000. Coffee rust. The Plant Health Instructor.
DOI: 10.1094/PHI-I-2000-0718-02Updated 2011. DISEASE: Coffee
rust PATHOGEN: Hemileia vastatrix - currently found in nearly
all the world's coffee-growing regions. H. coffeicola -
restricted to central and western Africa, especially the higher
and cooler regions. HOSTS: Coffea arabica (arabica coffee) and
Coffea canephora (robusta coffee), the two most important
commercial coffee species, and perhaps as many as 25 other
species of Coffea. Existence of an alternate host has been
postulated, but none have been found. Coffee rust is the most
economically important coffee disease in the world, and in
monetary value, coffee is the most important agricultural
product in international trade. Coffee rust is the most
economically important coffee disease in the world, and in
monetary value, coffee is the most important agricultural
product in international trade. Figure 1. World distribution of
coffee rust. (Adapted from Schieber, E. and G.A. Zentmyer. 1984.