It may spread and cause leaves of young shoots to die and fall off. The UC 157 hybrid variety is rust resistant. In other varieties, rust can be controlled with a fungicide spray after harvest. C. Fusarium Root Rot Caused by the fungus Fusarium, which is present in al regions of the United States. This disease enters the plant through young feeder roots, where it spreads and eventually weakens and kills the plant.
Infected plants wilt, turn yellow and are stunted.
In dissected roots, a reddish-brown color is positive diagnosis of fusarium. Once fusarium is in the field, there are no simple controls. New beds should never be planted in fields previously in asparagus.