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Pear psylla
Pear psylla, Cacopsylla pyricola (Foerster),
are sucking insects that can cause damage to ornamental and edible varieties
of pears.
For more information and images of pear psylla, check
the following links:
UC
IPM Online: Pear psylla
This site is one of the most comprehensive on this insect pest. Though
targeting fruit pears, much of the information is relevant to ornamental
pears.
Virginia Tech fact sheet: Pear
psylla
This site has nice information on the description, biology, monitoring,
and damage of pear psylla.
Utah State's Pear
psylla fact sheet
Another thorough treatment from a fruiting pear perspective
WSU Psylla
gallery
Great images!
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