Germination and Penetration Studies on coffee rust (Hemileia vastatrix B. & Br.)

Abstract

Spore dispersal, germination, penetration and incubation-period studies on coffee rust (Hemileria vastatrix B. Br.) in Kenya, East Africa, are described. Evidence is produced that air-borne spores may be trapped effectively on the upper surfaces of leaves, thence to be liberated and transported to the undersurfaces of other leaves by rain splash.