Phoma destructiva

Phoma destructiva is a species of fungus in the family Didymellaceae. It is a plant pathogen that causes significant damage to a variety of crops and ornamental plants.

Taxonomy

The species was first described in 1927 by mycologist Johannes Müller Argoviensis. It belongs to the genus Phoma, which comprises over 200 species of fungi.

Description

Phoma destructiva is characterized by its small, black, spherical fruiting body known as a pycnidium. The fungus produces spores that are hyaline, smooth, and elliptical in shape.

Distribution and habitat

Phoma destructiva is found worldwide, particularly in temperate regions. It is commonly found in soil and plant debris, and can also be isolated from air and water.

Pathogenicity

Phoma destructiva is a destructive plant pathogen. It causes diseases such as leaf spot, stem canker, and root rot in a wide range of host plants, including potatoes, tomatoes, peppers, and eggplants. The fungus enters the plant through wounds or natural openings, and then colonizes the plant tissues, causing necrosis and decay.

Management

Control of Phoma destructiva involves a combination of cultural practices, chemical treatments, and biological control. Cultural practices include crop rotation, sanitation, and the use of resistant varieties. Chemical control involves the use of fungicides, while biological control involves the use of antagonistic organisms such as Trichoderma species.

See also

• List of Phoma species
• Plant pathology

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