View source for Cacopsylla pyri

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[[File:Cacopsylla pyri Buckhardt.jpg|250px|thumb|''Cacopsylla pyri'' adult female<br/>Author: Daniel Buckhardt, Naturhistorisches Museum, Basel<br/>Source: [http://www.psyllidkey.info/pyri_steckbrief.html Psyllidkey]]]
[[File:Psylla pyri.jpg|200px|thumb|left|''Cacopsylla pyri''<br/>Author: Mick E. Talbot<br/>Source: [http://commons.wikimedia.org/wiki/File:Psylla_pyri.jpg Wikimedia Commons]]]
<font color="#800000">'''''Cacopsylla pyri'''''</font> (Linnaeus, 1761) - (pear psyllid)

The psyllid is an important pest of pears in Europe and transmits the pear decline disease caused by [[Phytoplasma pyri|`''Candidatus'' Phytoplasma pyriˊ]]. It develops through 5 nymphal stages within a period ranging from a few weeks to several months, depending on the temperature. There are 3 generations per year in central Europe and up to 6 in the Mediterranean region.

The adult is around 3 mm long, brownish with glassy wings. There are 2 colour forms. The summer form is light brown with a small dark spot at the base of the forewings. The winter form is darker, larger and with a brownish band on the forewing base.
{{VN
|de=[[naturfuehrer:Cacopsylla pyri|Gemeiner Birnblattsauger]]
|en=pear psyllid<br/>European pear psylla
|es=psila del peral
|fr=psylle commmun du poirier
}}
See also the related species ''[[Cacopsylla pyricola]]'' which has a similar biology.

'''Synonyms:'''<br/>
''Psylla piri''<br/>
''Psylla pyri''

[[Category:Cacopsylla (genus)]]