This volume includes a representative selection of fully refereed papers from the 10th Symposium on Insect-Plant Relations, plus a listing of the titles of all presentations. It includes reviews of major areas within the subject, along with detailed experimental studies. Topics covered include central neural and chemosensory bases of host plant recognition, integrative studies of insect behaviour, tritrophic interactions, plant defences, insect life histories, plant growth responses, microbial partners in insect-plant associations, and genetic bases of host plant associations.