Variation of Several Anthracnose Fungi in Virulence to Strawberry and Apple. J. L. Maas, Plant Pathologist, Fruit Laboratory, Horticultural Science Institute, USDA, ARS, NER, BARC, Beltsville, MD 20705. C. M. Howard, Plant Pathologist, University of Florida, Agricultural Research Center, Dover 33527. Plant Dis. 69:164-166. Accepted for publication 20 August 1984. This article is in the public domain and not copyrightable. It may be freely reprinted with customary crediting of the source. The American Phytopathological Society, 1985. DOI: 10.1094/PD-69-164.

Isolates of Glomerella cingulata, Colletotrichum gloeosporioides, C. fragariae, and C. dematium were evaluated for variation in pathogenicity and virulence in strawberry stolons and fruits and apple fruits. Isolates of two nonstrawberry pathogens, C. trifolii and C. coccodes, were also included as were subcultures of naturally occurring colony sectors of C. gloeosporioides and G. cingulata from culture. Isolates of C. trifolii were avirulent to moderately virulent in stolons. One isolate of C. coccodes and several isolates of C. gloeosporioides and G. cingulata were as virulent as C. fragariae in stolons.