First Report of Phomopsis Stem Canker of Sunflower (Helianthus annuus) Caused by Diaporthe gulyae in Canada
During September 2012, Phomopsis stem canker was observed on sunflowers (Helianthus annuus L.) in a production field during seed filling with an average incidence of 15% in Morden, Manitoba (approximately 49°11′N and 98°09′W).
DOI of Published Version
Mathew, Febina; Rashid, K. Y.; Gulya, T. J.; and Markell, S. G., "First Report of Phomopsis Stem Canker of Sunflower (Helianthus annuus) Caused by Diaporthe gulyae in Canada" (2015). Agronomy, Horticulture and Plant Science Faculty Publications. 267.