Fly-Speck Leaf Spot

Ophiodothella vaccinii

From Page 44 of “Diseases of Trees and Shrubs - 2nd Edition” by Wayne A. Sinclair and Howard H. Lyon:
This inconsequential disease, which affects species of Gaylusaccia and Vaccinium, is caused by Ophiodothella vaccinii and characterized by distinctive colorful lesions...The pathogen occurs widely in southeastern USA and also in Illinois and California.
Taxonomy
KingdomFungi
DivisionAscomycota
ClassSordariomycetes
OrderPhyllachorales
FamilyPhyllachoraceae
GenusOphiodothella
SpeciesOphiodothella vaccinii