Content tagged "highbush blueberry"

Double Spot and Gloeocercospora Leaf Spot

Blueberries Updated: November 17, 2011

Dothichiza caroliniana and Gloeocercospora inconspicuaIn late summer, the double spot fungus develops a secondary necrotic area around the original lesion...

Alternaria Leaf Spot of Blueberry

Blueberries Updated: November 17, 2011

 Alternaria Leaf Spot (Alternaria tenuissima) occurs primarily in the spring during prolonged periods of cool wet weather, when spores are produced in...

Powdery Mildew of Blueberry

Blueberries Updated: November 17, 2011

 The powdery mildew disease usually does not develop on blueberry leaves until midsummer after the crop is harvested.Symptoms:Disease cycle:Disease...

Gloeosporium Leaf Spot or Anthracnose of Blueberry

Blueberries Updated: November 17, 2011

 Gloeosporium leaf spot can cause severe defoliation and reduction in yield of blueberry crops.Symptoms include:References:

Septoria Leaf Spot of Blueberry and Grape

Grapes Blueberries Updated: November 17, 2011

  Symptoms:Disease cycle:Disease management:References:

Twig Blight of Blueberry

Blueberries Updated: November 17, 2011

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....

Leaf Rust of Blueberry

Blueberries Updated: November 17, 2011

 Leaf rust, caused by the rust fungus, Pucciniastrum vaccinii (synonyms: P. myrtillus, Naohidemyces vaccinii, and Thekopsora vaccinii), is most prevalent in...

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This work is supported by the USDA National Institute of Food and Agriculture, New Technologies for Ag Extension project.