Calonectria pyrochroa

Calonectria pyrochroa is a species of fungus in the family Nectriaceae. It is a plant pathogen that causes leaf spot and blight on a variety of plants, particularly in tropical and subtropical regions.

Taxonomy

The species was first described in 1890 by Pierre-Marie-Alexis Millardet, a French botanist and mycologist. The genus Calonectria includes over 150 species, many of which are plant pathogens.

Description

Calonectria pyrochroa produces small, round, orange-red fruiting bodies called perithecia. These structures contain numerous ascospores, which are the primary means of dispersal for the fungus. The spores are released into the air and can travel long distances, infecting new plants.

Pathogenicity

Calonectria pyrochroa is a pathogen of several plant species, causing leaf spot and blight. The fungus infects the leaves, causing small, round, brown spots that can coalesce into larger areas of blight. In severe infections, the fungus can cause defoliation and death of the plant.

Management

Management of Calonectria pyrochroa involves a combination of cultural practices and chemical control. Cultural practices include removing infected plant material and avoiding overhead irrigation, which can spread the fungus. Chemical control typically involves the use of fungicides.

See also

• List of Calonectria species
• Plant pathology

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