Erwinia (genus)

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Fire blight (Erwinia amylovora) on a pear tree (Pyrus communis L.)
Source: Wikimedia Commons

Erwinia Winslow et al., 1920

This genus of bacteria contains around 30 species which are mainly plant pathogens, causing necrotic diseases like blights, cankers, die back, leaf spots and wilts (amylovora group) or soft-rotting diseases (carotovora group). Various crops, mainly fruits and vegetables become infected. The bacteria are Gram-negative rods, 1-3 µm long.

Type species: Erwinia amylovora

See also the closely related genus Dickeya.

For details see the respective page in Wikipedia.

Currently, the following species have been entered into the system: