Peltaster fructicola

Peltaster fructicola is a species of fungus in the family Mycosphaerellaceae. It is a plant pathogen that primarily affects apple trees, causing a disease known as Flyspeck.

Taxonomy

The species was first described in 1933 by mycologists Hansford and F.A. Wolf. The genus Peltaster belongs to the family Mycosphaerellaceae, in the order Capnodiales, class Dothideomycetes, phylum Ascomycota, and kingdom Fungi.

Description

Peltaster fructicola is characterized by its black, shiny, and slightly raised fruiting bodies, which are typically found in groups. The ascospores are hyaline, one-celled, and elliptical in shape.

Distribution and habitat

Peltaster fructicola is widely distributed in apple-growing regions around the world. It is commonly found in the United States, Europe, and Asia. The fungus thrives in humid conditions and is often found on the surface of apple fruits.

Pathogenicity

Peltaster fructicola is one of the causal agents of Flyspeck disease in apple trees. The disease is characterized by the presence of small, black, shiny spots on the surface of the fruit. These spots are the fruiting bodies of the fungus. The disease does not typically affect the edibility of the fruit, but it can significantly reduce its market value.

Management

Management of Peltaster fructicola and Flyspeck disease involves a combination of cultural practices and chemical control. Cultural practices include pruning to improve air circulation and reduce humidity, and sanitation practices to remove infected plant material. Chemical control typically involves the use of fungicides.

See also

• List of apple diseases
• Mycosphaerellaceae
• Flyspeck

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