Botryosphaeria stem canker is a serious disease of blueberries in the southeastern United States. Symptoms. Early symptoms are small red lesions on succulent stems. The lesions become swollen and broadly conical in about 6 months.
Botryosphaeria stem canker is a serious disease of blueberries in the southeastern United States. Symptoms. Early symptoms are small red lesions on succulent stems. The lesions become swollen and broadly conical in about 6 months.