Black canker and leaf spot of Salix in New Zealand caused by Glomerella miyabeana (Colletotrichum gloeosporioides).

The article reports that Glomerella miyabeana was the causal agent of two new diseases that have been observed attacking willows in New Zealand. One and two year-old willows growing in the Aokautere Research Nursery infected with Glomerella miyabeana exhibited stem lesions and leaf spots. Willows in the willow collection kept at the Aokautere Research Nursery were examined closely throughout the growing season for stern lesions, leaf spotting and defoliation. study showed that black stem cankers and leaf spotting and defoliation of willows in New Zealand were caused by the same fungus, Glomerella miyabeana.