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!

Adult pear psyllid. Photo: Ken Gray

Adult pear psyllid.
Photo: Ken Gray

Pear psyllid nymph. Photo: Jim Young/OSU

Pear psyllid nymph.
Photo: Jim Young/OSU

Pear psyllid nymphs and eggs. Photo: Jim Young/OSU

Pear psyllid nymphs and eggs.
Photo: Jim Young/OSU

Pear psylla damage to pear leaf. Photo: Jim Young/OSU

Pear psylla damage to pear leaf.
Photo: Jim Young/OSU