Alfalfa mosaic virus
Alfalfa mosaic virus :
Typical leaf symptoms on plants with alfalfa mosaic include bright yellow blotches with some mottle. Leaves eventually develop a bronze discoloration. Internally, phloem tissue becomes necrotic, including the phloem in the roots. The disease usually causes plant death. One of the most striking symptoms is the necrotic rings and spots on the fruit. Some fruit may develop a solid brown necrosis over the surface.
Control: Use of silver reflective mulches may delay the infection by aphid-borne viruses and reduce the incidence and severity of these diseases by repelling aphids that transmit them. Avoid planting tomatoes near alfalfa fields and to avoid use of insectary plantings that contain alfalfa near tomato fields
