Investigations into the cause of the phloem necrosis disease of Coffea liberica in Surinam, South America

Abstract

The presence of the flagellatePhytomonas leptovasorum, Stahel in the phloem vessels ofCoffea liberica Bull. ex Hiern., suffering from phloem necrosis, was once more demonstrated. The association of the organism with the multiple division of sieve tubes in affected trees was confirmed. The different nature of a wilting disease caused by the fungusCeratocystis fimbriata Ellis et Halst. has again been established.