Aphids on the world's crops

"Extensively revised and fully updated, Aphids on the World's Crops is the only publication to provide non-specialist workers wherever they are in the world with the means both to identify to species level, and to access the literature on, one of the main groups of agriculturally important insects." "Aphids on the World's Crops is a reference tool for economic, applied and agricultural entomologists at universities, research institutes and advisory centres throughout the world."--Jacket.