Root Diseases

Pathogen (Virus) – Beet Necrotic Yellow Vein Virus (BNYVV)


Rhizomania is one of the more destructive diseases of sugarbeet present in North American production areas today. The causal agent is transmitted by the soil borne fungus Polymyxa betae.

Pathogen (fungus) – Rhizoctonia solani

Rhizoctonia Root and Crown Rot

Rhizoctonia root and crown rot is one of the most common root diseases and is caused by a soil borne fungus.

Erwinia Soft Rot

Also known as Bacterial Vasular Necrosis, Erwinia root rot is most destructive in warmer growing areas such as the Imperial Valley of California and Idaho.


Fusarium is a root disease caused by a fungus present in the soil. It is present in several Western markets plus Minnesota and North Dakota.


This disease occurs in two phases: As an acute seedling blight soon after emergence, and a more chronic root rot occurring from late June to the end of the growing season.