Venturia pyrina
Encyclopedia
Venturia pyrina is a species of fungus
Fungus
A fungus is a member of a large group of eukaryotic organisms that includes microorganisms such as yeasts and molds , as well as the more familiar mushrooms. These organisms are classified as a kingdom, Fungi, which is separate from plants, animals, and bacteria...

 in the Venturiaceae
Venturiaceae
The Venturiaceae are a family of fungi in the order Pleosporales. Several of the species in this family are plant pathogens.-List of genera:*Acantharia*Antennularia*Apiosporina*Arkoola*Atopospora*Botryostroma*Caproventuria...

 family. A plant pathogen, it causes scab or black spot of pear
Pear
The pear is any of several tree species of genus Pyrus and also the name of the pomaceous fruit of these trees. Several species of pear are valued by humans for their edible fruit, but the fruit of other species is small, hard, and astringent....

. It has a widespread distribution in temperate
Temperate
In geography, temperate or tepid latitudes of the globe lie between the tropics and the polar circles. The changes in these regions between summer and winter are generally relatively moderate, rather than extreme hot or cold...

 and subtropical regions wherever pears are grown.
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