Phomopsis twig blight, caused by the fungus Phomopsis spp. (including P. vaccinii), can be a serious disease if allowed to buildup in a blueberry planting. This disease is frequently more severe following winters characterized by excessive temperature fluctuations and …
Leaf Rust of Blueberry
Alternaria Leaf Spot of Blueberry
Gloeosporium Leaf Spot or Anthracnose of Blueberry
Double Spot and Gloeocercospora Leaf Spot
Dothichiza caroliniana and Gloeocercospora inconspicua
In late summer, the double spot fungus develops a secondary necrotic area around the original lesion spreading in an irregular to fan-shaped pattern. The gloeocercospora leaf spot appears on the foliage by mid-summer as large …