Mycosphaerella angulata

Mycosphaerella angulata is a species of fungus in the family Mycosphaerellaceae. It is a plant pathogen that primarily affects the apple tree, causing a disease known as Flyspeck.

Description

Mycosphaerella angulata is a fungal species that is characterized by its small, black, and shiny fruiting bodies. These fruiting bodies, or ascocarps, are typically found on the surface of the host plant's leaves or fruits. The fungus produces spores that are spread by wind and rain, leading to new infections.

Life Cycle

The life cycle of Mycosphaerella angulata begins when its spores land on a suitable host. The spores germinate and penetrate the host's tissues, establishing a new infection. The fungus then grows and reproduces, producing new spores that are released to infect other hosts. This cycle can occur multiple times within a single growing season.

Disease Symptoms

The primary symptom of Mycosphaerella angulata infection is the appearance of small, black spots on the surface of the host plant's leaves or fruits. These spots, known as flyspeck, can reduce the aesthetic and market value of the affected fruits. In severe cases, the infection can also lead to premature leaf drop and reduced fruit yield.

Management

Management of Mycosphaerella angulata involves a combination of cultural practices and chemical control. Cultural practices include pruning and thinning to improve air circulation and reduce humidity, which can help to limit the spread of the fungus. Chemical control typically involves the use of fungicides to protect susceptible plants.

See Also

• Mycosphaerella
• Flyspeck
• Apple