Seedlings should not be overwatered. Older leaves become twisted and may fall off. This organism is transmitted by leafhoppers. The disease usually occurs sporadically with little economic loss. This disease occurs close to harvest and is associated with warm temperatures that follow heavy rains.
Plants die in clusters within a field.
By the time the fungus is seen on the surface of the soil, the carrot is rotted. There are no control recommendations. Harvesting should be done as quickly as possible in affected fields. Harvested carrots should be processed and cooled as quickly as possible to minimize post- harvest decay caused by the fungus. This is primarily a post-harvest problem, although soil is the source of the pathogen.