black spot, or anthracnose disease of grapevines is caused by the fungus elsinoe ampelina. 

ampelina anthracnose bacterial bacteriophage biology black capsid care cause caused cell complex damage diagnostic different discoloration disease dna elsinoe fungal fungus grape grapevines illness infection infects leaves loss microbe microbiology microorganism morphology mosaic occurs quality rainfall science significant spot spring stems tobacco transmittion uncontrolled vine viral viroids virology virus viruses yield young