Proceedings of the 8th International Symposium on Insect-Plant Relationships

The importance of herbivore population density in multitrophic interactions in natural and agricultural ecosystems.- The evolution of plant resistance and correlated characters.- Habitat impact on insect communities of annual and perennial grasses.- Predispersal seed predation in the limitation of native thistle.- Preference, tree resistance, or chance: how to interpret differences in gall density among trees?.- Aggregation of aphid galls at 'preferred' sites within trees: do colonizers have a choice?.- Abundance and mortality of a specialist leaf miner in response to shading and fertilization of American holly.- Within-population variation in demography of a herbivorous lady beetle.- Continental-scale host plant use by a specialist insect herbivore: milkweeds, cardenolides and the monarch butterfly.- Resource partitioning of host plants by insects on a geographic scale.- Why do droughts often result in devastating insect epidemics? The African armyworm, Spodoptera exempta, as an example.- The impact of water and nutrient stress on oak leaf quality and gypsy moth performance.- Forest insect trends along an acidic deposition gradient in the central United States.- Birch foliage quality and population density of Eriocrania miners in a pollution-affected area.- Performance of Neodiprion sertifer on defoliated scots pine foliage.- Comparative studies of developmental biology, preference and feeding behavior of Monellia caryella on Juglandaceae native to North America.- Host-plant selection by the tropical butterfly Bicyclus anynana.- Interactions between host-plant information and climatic factors on diapause termination of two species of Bruchidae.- Assessing host-plant suitability in caterpillars: is the weight worth the wait?.- Size, feeding ecology and feeding behaviour of newly hatched caterpillars.- Natural defence of pedunculate oak (Quercus robur) against the defoliating insect Euproctis chrysorrhoea.- Estimating costs and benefits of the pyrrolizidine alkaloids of Senecio jacobaea under natural conditions.- Induced chemical defence in Cynoglossum officinale.- Conversion of plant-derived pyrrolizidine alkaloids into insect alkaloids.- Phytoecdysteroids and insect-plant relationships in the Chenopodiaceae.- The non-nutrional relationship of Zonocerus (Orthoptera) to Chromolaena (Asteraceae).- Search behaviour: strategies and outcomes.- Response of the oilseed rape pests, Ceutorhynchus assimilis and Psylliodes chrysocephala, to a mixture of isothiocyanates.- Volatile plant metabolites involved in host-plant recognition by the cabbage seed weevil, Ceutorhynchus assimilis.- The olfactory and behavioural response of seed weevils, Ceutorhynchus assimilis, to oilseed rape volatiles.- Dispersive flight of the cabbage stem weevil.- Responses of the black bean aphid, Aphis fabae, to a non-host plant volatile in laboratory and field.- Aggregation in a flower bud-feeding weevil.- Electroantennogram responses of aphids to plant volatiles and alarm pheromone.- The role of host-plant odour and sex pheromones in mate recognition in the aphid Cryptomyzus.- Comparison of electroantennogram responses by females of the black swallowtail butterfly, Papilio polyxenes, to volatiles from two host-plant species.- Olfactory and visual cues in host-finding in the Burnet moth, Zygaena trifolii.- Specialization of receptor neurons to host odours in the pine weevil, Hylobius abietis.- Plant chemicals involved in honeybee-rapeseed relationships: behavioural, electrophysiological and chemical studies.- Volatiles from soybean foliage detected by means of a TCT-HRGC system: their possible role in insect-plant relationships.- Host-finding by Phoracantha semipunctata: host volatiles, electroantennogram recordings and baited field traps.- Chemical recognition of diverse hosts by Pieris rapae butterflies.- Role of nutrients found in the phylloplane, in the insect host-plant selection for oviposition.- Oviposition stimulant for the cabbage root fly: importan...