Charcoal root and stem rot of Eucalyptus

Macrophomina phaseolina (Tassi) Goid. caused a serious root and stem rot in juvenile seedlings of Eucalyptus in nurseries. This is a new host record. The pathogen produced systemic infection in the seedlings. The symptoms and histopathology and factors influencing the disease were studied. Of five fungicides tried in the laboratory and in the field, bavistin and dithane M-45 at 0.2% showed promising results for the control of the disease.