Date: 2010-08-06 18:23:54

Protostome

Psylla pyri

Psylla

Agricultural pest insects

Grapholitini

Invasive plant species

Pear

Opuntia

Codling moth

Flora

Psylloidea

Phyla

Integrated Pest Management Reviews 4: 1–20, 1999. © 1999 Kluwer Academic Publishers. Printed in the Netherlands. Monitoring of pear psylla for pest management decisions and research David R. Horton USDA-ARS, 5230 Konn

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