Content tagged "blueberry diseases"

Mummy Berry Disease of Blueberries

Blueberries Updated: August 14, 2013

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

Cold Damage Associated with Blueberries in the Southeast

Blueberries Updated: August 13, 2013

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

Mitigating Mummy Berry Disease of Blueberry

Blueberries Updated: August 13, 2013

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

Botrytis Blight of Blueberry

Blueberries Updated: December 13, 2011

 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...

Blueberry Diseases: An Overview

Blueberries Updated: November 28, 2011

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

Stem Blight of Blueberry -- Control

Blueberries Updated: November 17, 2011

  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...

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...

Blueberry Foliar Diseases

Blueberries Updated: November 17, 2011

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

Stem Blight of Blueberry

Blueberries Updated: November 17, 2011

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

Botryosphaeria Stem Canker of Blueberry

Blueberries Updated: November 17, 2011

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

Bacterial Leaf Scorch of Blueberry

Blueberries Updated: November 17, 2011

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

Armillaria Root Rot of Blueberry

Blueberries Updated: November 17, 2011

 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...

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