Ascochyta Blight in Peas

The ascochyta blight disease complex affects field peas (Pisum sativum), as well as many other legumes such as chick peas, lentils, and faba beans. Although three different pathogens cause ascochyta diseases of pea, the symptoms are relatively similar to one another, thus making diagnosis difficult. It can be identified by slightly sunken, tan-colored lesions that are defined by dark-brown margins. Lesions on leaves and pods are circular in shape, while lesions are elongated on stems.