Liver spot is characterized by the appearance of reddish-brown (liver colored) circular
spots 1/8 to 5/8 inch in diameter on the lower side of leaflets. In the fall, the
spots turn cinnamon brown and contain small, dark fungal-fruiting bodies. This disease
sometimes causes defoliation in the more humid southeastern states but is not considered
a serious disease in Oklahoma.
A scab control program controls this disease. Please contact your local county extension
office for current information.