Abstract

INTEGRATED DISEASE MANAGEMENT OF ROOT ROT IN COLEUS FORSKOHLII

Dr. B. Meena*

Abstract

The root rot disease caused by Rhizoctonia bataticola is the serious soil-borne disease affecting Coleus forskohlii. The field experiment was conducted on the effect of fungicides and biocontrol agents for the management of root rot disease. The results showed that dipping stem cuttings in carbendazim (0.1%) followed by drenching with carbendazim (0.1%) on 30 DAP was effective in managing the root rot disease by recording 12.0% and 14.7% on 45 and 90 DAP respectively. In control, the highest root rot disease incidence of 22.7 and 30.7 per cent was recorded on 45 and 90 DAP respectively. The growth and yield parameters viz., plant height, number of tubers per plant, length of tubers, fresh weight and dry weight of the tubers and dry tuber yield were also found to be the highest in the treatment of dipping stem cuttings in carbendazim (0.1%) followed by drenching with carbendazim (0.1%) on 30 DAP.

Keywords: Coleus forskohlii, root rot, carbendazim, biocontrol agents.