|Soybean mosaic causes stunting of plants
and crinkled and mottling of leaves.
|Infected plants range from no symptoms
to severely mottled and deformed.
|The leaf blades are puckered along the
veins and curled downward.
|The mottling appears as light and dark
green patches on individual leaves.
|Symptoms can be difficult to see when
temperatures are above 90°F.
|Do not confuse with growth regulator herbicide damage where the
leaves will be elongated and which usually occurs in a pattern such
as along a field edge.
|Soybean mosaic can also reduce seed size and pod number per plant,
and soybean mosaic is one of several factors associated with discoloration
of seeds, causing a dark discolored tear stain origination at the
|The virus can interact with bean
pod mottle virus (BPMV)
to create severe symptoms in plants infected with both viruses.