The Pear-tree Psylla

This comprehensive guide to the pear-tree psylla, a common pest of pear trees, offers detailed information on identification, life cycle, and management strategies. Written by a leading entomologist, this book includes full-color illustrations and practical advice for both amateur and professional growers.
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it.
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