Mummy berry is an important pathogen in many blueberry-growing regions of the United States.

Cold-injured blueberry stems develop a characteristic dead, hook-shaped tip.

 Blueberries may be nutritional powerhouses, but some types are no match for the fungus Monilinia vaccinii-corymbosi, which causes "mummy berry"...

 Gray sporulation of Botrytis cinerea.If there is a late freeze or even cold weather during bloom time, check the flowers and young fruit for the presence of...

Diseases caused by plant pathogenic fungi, viruses and bacteria can cause significant economic loss in commercial blueberry fields.Blueberry diseases can be...

  The control of stem blight depends on cultural practices; fungicides do not provide adequate protection.Having a clean planting stock is the first step to...

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

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

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

  Symptoms:Disease cycle:Disease management:References:

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

During the blueberry growing season, you will be concerned about several foliar diseases of blueberry, including:These diseases should be treated for...

 Blueberry stem blight caused by the fungus Botryosphaeria dothidea and other Botryosphaeria species is the primary disease limiting the establishment of...

 Botryosphaeria stem canker, caused by the fungus Botryosphaeria corticis, is a disease of both highbush and rabbiteye blueberries throughout the...

 The bacterium Xylella fastidiosa is the causal agent of bacterial leaf scorch of blueberry, which primarily affects cultivars of southern highbush...

 Armillaria root rot (Armillaria mellea, A. ostoyae) is a rare disease of blueberries in the United States, but it can cause serious damage where it...