Plants infected in the seedling stage will be severely stunted, and yellow to red in color.
Plants appear as if they are suffering a nutritional deficiency.
When plants are infected at later stages of growth, plants may or may not have stunted growth, but some leaves will be red or yellow, or a combination of red and yellow. Some leaves on infected plants may remain green. It is not known to occur in the Imperial Valley growing regions. In some years, spring carrots are severely affected. Both viruses are carried together by the aphid and are then transmitted to plants as the aphid feeds.