Phomopsis cankers and blights are fungal diseases usually caused by Phomopsis vaccinii. Symptoms include brown lesions on stems and twigs, blighting of woody stems with buds, wilting, and death of canes during the growing season.
Primary symptoms of infection include wilting leaves, blight of young shoots, sunken and darkened areas of stems with possible sap or resin flow, cankering on larger stems and branches, browning of the vascular tissue when bark is scraped away, and canopy dieback.
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