BOOK REVIEW: H.F. van Emden & R. Harrington (eds): Aphids as Crop Pests.

Sixty-eight leading specialists have written a new handbook on aphids as key pests of various crops.This book complements the aphid knowledge in the excellent monograph published about twenty years ago in three volumes -"Aphids: Their Biology, Natural Enemies and Control" (edited by A.K. Minks and P. Harrewijn) -as it concentrates on the applied aspects of aphidology.It does not provide comprehensive information on their morphology, physiology and ecology.The material in this book is divided into thirty-one chapters, which can be aggregated into the following nine key topics:A. Taxonomic issues (Chapter 1: by R.L. Blackman and V.F.Eastop) include the taxonomic and bionomical characteristics of fourteen aphid species of great agricultural importance.More extensive information on the identification of aphids on the world's crops, trees and herbaceous plants