Feeding injury.

Abstract

This chapter focuses on aphid feeding-elicited crop injury and damage. A classification scheme is proposed for aphid-feeding injury in accordance with the symptoms that aphids elicit. Recent understanding of biochemical and physiological mechanisms of symptom formation as a result of aphid injury serves as the basis for the proposed classification scheme. The ramifications of studying aphid injury are also discussed in relation to improving crop resistance to aphid and other sap-feeding herbivores, as well as research frontiers in the understanding of aetiology of aphid injury.