Monochaetia mali

Monochaetia mali is a species of fungus in the family Amphisphaeriaceae. It is a plant pathogen that primarily affects apple trees, causing a disease known as Sooty blotch and flyspeck (SBFS).

Taxonomy

The genus Monochaetia belongs to the family Amphisphaeriaceae, within the order Xylariales. The species mali was first described in 1926 by mycologist John N. Couch.

Description

Monochaetia mali is characterized by its dark, sooty appearance on the surface of infected fruits. The fungus forms small, black, circular spots that can merge to form larger blotches.

Distribution and habitat

Monochaetia mali is found worldwide, particularly in regions with a temperate climate where apple trees are commonly grown. It thrives in humid conditions and is often found on the surface of fruits that have been wet for extended periods.

Pathogenicity

Monochaetia mali is a pathogen of apple trees, causing a disease known as Sooty blotch and flyspeck. The fungus infects the surface of the fruit, causing aesthetic damage that can reduce the market value of the crop. While the disease does not affect the taste or quality of the fruit, it can make the apples unappealing to consumers.

Management

Management of Monochaetia mali 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
• Plant pathology

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