Phytochemical feeding deterrents for stored product insect pests

This review summarises information on compounds of plant origin and plant products as feeding inhibitors for stored product insects. More than 200 compounds (mostly sesquiterpenes) and over 160 plant extracts have been tested to date. Indeed, we did not consider substances stimulating olfactory receptors (repellents) or compounds just toxic to insects. The main scope of the review is to enable best choice for the most active, as well as biorationally suitable substances, for evolving further rational experiments in future. Feeding inhibitors may be used along with food or sex attractants in biorational control of the stored food pests. However, each semiochemical should be submitted to a formal registration process before its use in practice.