Microbe:
The disease that affects sugar beets is the Beet Necrotic Yellow
Vein Virus (BNYVV). This virus is vectored by the soilborne
fungus Polymyxa betae Keyskin. The virus can stay within spores
in soil for years, and is favored by warm, wet soil.
Kingdom: Mycetae
General overview of Rhizomania:
Sugar Beet Rhizomania, sometimes calles "crazy root" or
"root madness" can be a serious problem to sugar
producers. It not only affects tonnage, but also sugar content.
Prevention, Cure, and/or Treatment of Rhizomania:
The weather greatly affects the conditions that Rhizomania can
multiply and spread. The best preventative measure that can be
taken is to contain the infested soil.
Diagnosis:
A test must be conducted by a serological laboratory. Symptoms
include "hairy," darkened root, and leaves may appear
Nitrogen deficient due to yellowing.
Related sites on the web:
[Practices
that Reduce Risk of Spreading Rhizomania- John A. Smith]
[Rhizomania-
J. M. Halloin]
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