The fungus grows on the lower surface of the leaves, a growth of white tufts that contain spore masses. Articularia leaf mold does not occur on trees in orchards that have been sprayed regularly for disease control. A single fungicide application at the first sign of disease is usually sufficient to control articularia leaf mold disease. The materials applied for scab control will also provide some protection against this fungus. Pink mold infection occurs on scab infected nuts.
Infected nuts develop a white mold growth in old scab lesions.
In areas not exposed to air and sunlight, the white area becomes pink in color. The fungus may invade the kernel. The kernel becomes oily in appearance and 'leaks' onto nearby nuts. The kernel is rancid and not eatable. In areas where scab disease control is regularly practiced, pink mold is not a problem.