Diaporthe gulyae: The new pathogen on common buckwheat (Fagopyrum esculentum)

Abstract

A fungus associated with stem disease on common buckwheat (Fagopyrum esculentum Moench) was shown to be pathogenic on this crop, with differences in reaction of buckwheat varieties to causal agent. Sequence analyses support identification of the pathogen as Diaporthe gulyae, which has also been shown to be a pathogen on soybean and sunflower. As a result, the use of buckwheat in rotations with sunflower or soybean may need to be reconsidered.