First report of anthracnose of Gaultheria procumbens caused by Colletotrichum gloeosporioides.
In 2001, a stem canker and dieback associated with a Colletotrichum sp. was observed on G. procumbens (wintergreen) seedlings grown from seeds in soilless potting mix at four commercial nurseries in coastal British Columbia, Canada. Black, water-soaked lesions developed into tan cankers girdling stems and petioles, and a black rot extended into the base of the leaves. In 2002, a Colletotrichum sp. was isolated from similar stem cankers from wintergreen plants. Reisolation of the fungus from symptomatic tissues identified the causal agent as Colletotrichum gloeosporioides [Glomerella cingulata]. This is thought to be the first confirmation of the causal agent of wintergreen seedling death in seed propagation nurseries in British Columbia.