Pseudocercospora mali

Pseudocercospora mali is a species of fungus in the family Mycosphaerellaceae. It is a plant pathogen that primarily affects apple trees, causing a disease known as apple blotch.

Description

The Pseudocercospora mali fungus is characterized by its conidiophores, which are simple or branched, and its conidia, which are multi-septate and pale brown in color. The fungus is primarily found on the leaves of apple trees, where it causes a disease known as apple blotch.

Apple Blotch

Apple blotch is a fungal disease that primarily affects apple trees. The disease is characterized by the appearance of brown or black spots on the leaves, which can eventually lead to defoliation and a reduction in fruit yield. The disease is caused by the fungus Pseudocercospora mali.

Distribution and Habitat

Pseudocercospora mali is found worldwide, particularly in regions where apple trees are cultivated. The fungus prefers humid conditions and is most active during the warm, wet months of the year.

Management

Management of Pseudocercospora mali and apple blotch involves a combination of cultural practices and chemical control. Cultural practices include pruning and sanitation to reduce the amount of inoculum in the orchard. Chemical control typically involves the use of fungicides.

See Also

• Apple
• Fungus
• Plant Pathology