Phaeosphaerella mangiferae

Phaeosphaerella mangiferae is a fungal pathogen that primarily affects the Mango tree (Mangifera indica). It is known for causing a disease known as Mango leaf spot or Mango leaf blight. This fungus is a member of the Ascomycota phylum, which is the largest phylum of Fungi Kingdom, comprising about 75% of all described fungi.

Taxonomy

The scientific name Phaeosphaerella mangiferae is derived from the Greek words 'phaeos' meaning dark, 'sphaerella' meaning small sphere, and 'mangiferae' referring to the host plant, the Mango tree. It belongs to the Phaeosphaerellaceae family, which is a family of fungi in the order Capnodiales.

Description

Phaeosphaerella mangiferae is a filamentous fungus. It produces spores that are dark brown to black in color. The spores are produced in structures called pycnidia, which are flask-shaped and embedded in the host tissue.

Disease Cycle

The disease cycle of Phaeosphaerella mangiferae begins when the spores are dispersed by wind or rain to the leaves of the Mango tree. The spores germinate and penetrate the leaf tissue, causing the characteristic leaf spot symptoms. The fungus then produces more spores, which are released to infect new leaves.

Management

Management of Phaeosphaerella mangiferae involves a combination of cultural practices and chemical control. Cultural practices include pruning and removal of infected leaves to reduce the source of inoculum. Chemical control involves the use of fungicides to kill the fungus.

Impact

The impact of Phaeosphaerella mangiferae is significant in areas where Mango trees are grown commercially. The disease can cause defoliation and reduced fruit yield, affecting the economic viability of Mango production.