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Browse by Author: Garrett Ridge
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Anthracnose Fruit Rot of Strawberry

By: Frank Louws, Garrett Ridge, Jean Harrison

Anthracnose is an important disease of strawberry with all parts of the plant (fruit, crowns, leaves, petioles and runners) being susceptible to the disease. Disease control is difficult when environmental conditions are favorable for disease development and if inoculum is present. The disease can be especially destructive to susceptible California strawberry cultivars (e.g. Chandler, Camarosa, Albion) when grown on black plastic.

Botrytis Fruit Rot / Gray Mold on Strawberry

By: Frank Louws, Garrett Ridge, Jean Harrison

Botrytis rot, or gray mold as it is often called, is a serious disease in all strawberry production areas and is a disease of concern in most years. The disease is a problem not only in the field, but also during storage, transit, and marketing of strawberry fruit, due to onset of severe rot as the fruits begin to ripen. Other parts infected by the fungus include leaves, crown, petals, flower stalks, and fruit caps.

Phytophthora Crown Rot of Strawberry

By: Frank Louws, Garrett Ridge

Diagnostic procedures and treatment of phytopthora crown rot of strawberry are discussed in this factsheet.

Anthracnose Crown Rot of Strawberry

By: Frank Louws, Garrett Ridge, Jean Harrison

Anthracnose crown rot is caused by the pathogen Colletotrichum gloeosporioides. This disease can cause significant economic damage to strawberry nursery and fruit production systems, particularly in the southeastern production region. This article highlights the symptoms and signs of the disease, disease cycle, methods for diagnosis and integrated management recommendations.

Leather Rot of Strawberry

By: Frank Louws, Garrett Ridge

Leather rot, though occurring rarely in North Carolina, can cause substantial losses of fruit yield. This factsheet covers the identification and control of the disease.

Leaf Scorch of Strawberry

By: Frank Louws, Garrett Ridge

This factsheet covers leaf scorch, a fungus that weakens strawberry leaves and plants.

Gnomonia Leaf Blotch and Stem-End Rot of Strawberry

By: Frank Louws, Garrett Ridge

Gnomonia causes leaf blotch and stem-end rot of strawberry. The pathogen typically is introduced on transplant material and can build up in plug facilities and in fruiting fields. It rarely becomes an economic concern.

Phomopsis Leaf Blight of Strawberry

By: Frank Louws, Garrett Ridge

This factsheet covers Phomopsis leaf blight, a fungus that causes lesions and defoliation in strawberries.

Powdery Mildew of Strawberry

By: Frank Louws, Garrett Ridge

This factsheet discusses the symptoms and treatment of powdery mildew in strawberries.

Strawberry Viruses

By: Frank Louws, Garrett Ridge

This publication discusses the signs and symptoms as well as management of a variety of strawberry viruses including Strawberry Mild Yellow Edge, Strawberry Mottle Virus and Raspberry Ringspot Virus.

Angular Leafspot of Strawberry

By: Frank Louws, Jean Harrison, Garrett Ridge

Angular leaf spot is caused by the bacteria Xanthomonas fragariae and occurs frequently in North Carolina and surrounding states. The pathogen is introduced on infected plant material and is difficult to control but economic damage is often low.

Southern Stem Blight of Strawberry

By: Frank Louws, Garrett Ridge

The symptoms and treatment techniques of southern stem blight in strawberries are discussed in this factsheet.