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

Front Matter....Pages I-XII
Introduction....Pages 1-1
Front Matter....Pages 3-3
The importance of herbivore population density in multitrophic interactions in natural and agricultural ecosystems....Pages 5-13
The evolution of plant resistance and correlated characters....Pages 15-25
Habitat impact on insect communities of annual and perennial grasses....Pages 27-29
Predispersal seed predation in the limitation of native thistle....Pages 30-32
Preference, tree resistance, or chance: how to interpret differences in gall density among trees?....Pages 33-35
Aggregation of aphid galls at ‘preferred’ sites within trees: do colonizers have a choice?....Pages 36-38
Abundance and mortality of a specialist leaf miner in response to shading and fertilization of American holly....Pages 39-40
Within-population variation in demography of a herbivorous lady beetle....Pages 41-42
Continental-scale host plant use by a specialist insect herbivore: milkweeds, cardenolides and the monarch butterfly....Pages 43-45
Resource partitioning of host plants by insects on a geographic scale....Pages 46-48
Why do droughts often result in devastating insect epidemics? The African armyworm, Spodoptera exempta , as an example....Pages 49-51
The impact of water and nutrient stress on oak leaf quality and gypsy moth performance....Pages 52-54
Forest insect trends along an acidic deposition gradient in the central United States....Pages 55-56
Birch foliage quality and population density of Eriocrania miners in a pollution-affected area....Pages 57-58
Performance of Neodiprion sertifer on defoliated scots pine foliage....Pages 59-60
Comparative studies of developmental biology, preference and feeding behavior of Monellia caryella on Juglandaceae native to North America....Pages 61-64
Host-plant selection by the tropical butterfly Bicyclus anynana ....Pages 65-66
Interactions between host-plant information and climatic factors on diapause termination of two species of Bruchidae....Pages 67-68
Assessing host-plant suitability in caterpillars: is the weight worth the wait?....Pages 69-70
Front Matter....Pages 3-3
Size, feeding ecology and feeding behaviour of newly hatched caterpillars....Pages 71-73
Natural defence of pedunculate oak ( Quercus robur ) against the defoliating insect Euproctis chrysorrhoea ....Pages 74-76
Estimating costs and benefits of the pyrrolizidine alkaloids of Senecio jacobaea under natural conditions....Pages 77-78
Induced chemical defence in Cynoglossum officinale ....Pages 79-82
Conversion of plant-derived pyrrolizidine alkaloids into insect alkaloids....Pages 83-85
Phytoecdysteroids and insect-plant relationships in the Chenopodiaceae....Pages 86-88
The non-nutrional relationship of Zonocerus (Orthoptera) to Chromolaena (Asteraceae)....Pages 89-90
Front Matter....Pages 91-91
Search behaviour: strategies and outcomes....Pages 93-102
Response of the oilseed rape pests, Ceutorhynchus assimilis and Psylliodes chrysocephala , to a mixture of isothiocyanates....Pages 103-104
Volatile plant metabolites involved in host-plant recognition by the cabbage seed weevil, Ceutorhynchus assimilis ....Pages 105-106
The olfactory and behavioural response of seed weevils, Ceutorhynchus assimilis , to oilseed rape volatiles....Pages 107-108
Dispersive flight of the cabbage stem weevil....Pages 109-111
Responses of the black bean aphid, Aphis fabae , to a non-host plant volatile in laboratory and field....Pages 112-114
Aggregation in a flower bud-feeding weevil....Pages 115-116
Electroantennogram responses of aphids to plant volatiles and alarm pheromone....Pages 117-118
The role of host-plant odour and sex pheromones in mate recognition in the aphid Cryptomyzus ....Pages 119-121
Comparison of electroantennogram responses by females of the black swallowtail butterfly, Papilio polyxenes , to volatiles from two host-plant species....Pages 122-124
Olfactory and visual cues in host-finding in the Burnet moth, Zygaena trifolii ....Pages 125-126
Specialization of receptor neurons to host odours in the pine weevil, Hylobius abietis ....Pages 127-128
Plant chemicals involved in honeybee-rapeseed relationships: behavioural, electrophysiological and chemical studies....Pages 129-130
Front Matter....Pages 91-91
Volatiles from soybean foliage detected by means of a TCT-HRGC system: their possible role in insect-plant relationships....Pages 131-132
Host-finding by Phoracantha semipunctata : host volatiles, electroantennogram recordings and baited field traps....Pages 133-135
Chemical recognition of diverse hosts by Pieris rapae butterflies....Pages 136-138
Role of nutrients found in the phylloplane, in the insect host-plant selection for oviposition....Pages 139-140
Oviposition stimulant for the cabbage root fly: important new cabbage leaf surface compound and specific tarsal receptors....Pages 141-142
Tarsal contact chemoreceptors of the cherry fruit fly, Rhagoletis cerasi : specificity, correlation with oviposition behaviour, and response to the synthetic pheromone....Pages 143-145
Dietary mixing in generalist grasshoppers....Pages 146-148
Semiochemicals isolated from the eggs of Ostrinia nubilalis as oviposition deterrent in three other moth species of different families....Pages 149-150
Roles of chemosensory organs in food discrimination by larvae of the tobacco hornworm, Manduca sexta ....Pages 151-152
Sensory responses to the triterpenoid antifeedant toosendanin....Pages 153-154
Insect antifeeding activity of some cardenolides, coumarins and 3-nitropropionates of glucose from Coronilla varia ....Pages 155-156
Seasonal variation in the importance of pollen volatiles on the reproductive biology of the sunflower moth....Pages 157-158
Seasonal variation in plant chemistry and its effect on the feeding behaviour of phytophagous insects....Pages 159-161
Associative learning in host-finding by female Pieris brassicae butterflies: relearning preferences....Pages 162-164
Circadian stability of olfaction in Lobesia botrana ....Pages 165-166
Whitefly preference-performance relationships....Pages 167-168
The role of salts in the feeding behaviour of locusts....Pages 169-170
Computer-aided analysis of chemosensory data....Pages 171-172
Analysis of sensory information using neural networks....Pages 173-175
Azadirachtin treatment and host-plant selection....Pages 176-178
Front Matter....Pages 91-91
The effects of azadirachtin on feeding by Myzus persicae ....Pages 179-180
Effects of the plant-derived antifeedant polygodial on aphid host selection behaviour....Pages 181-182
The geometry of feeding: a new way of looking at insect nutrition....Pages 183-185
A common chemical mechanism for insect-plant communication....Pages 186-187
Front Matter....Pages 189-189
Genetics and the phylogeny of insect-plant interactions....Pages 191-200
Host-race formation in a leaf-mining moth....Pages 201-202
Host-race formation in the two-spotted spider mite ( Tetranychus urticae )....Pages 203-204
Variation in the suitability of Barbarea vulgaris (Cruciferae) for the flea beetle Phyllotreta nemorum ....Pages 205-206
Plant secondary chemistry and the evolution of feeding specialization in insect herbivores: a different perspective....Pages 207-208
Population genetical evidence for host-race formation in Yponomeuta padellus ....Pages 209-211
Latitudinal trends in oviposition preferences: ecological and genetic influences....Pages 212-214
Role of any single herbivore species in the evolution of willows....Pages 215-217
Front Matter....Pages 219-219
Potential of plant-derived genes in the genetic manipulation of crops for insect resistance....Pages 221-234
The development of host-plant resistance to insect pests: outlook for the tropics....Pages 235-249
Endogenous proteinase inhibitors induced in tobacco in response to herbivory: effects on the interpretation of insect resistance of transgenic tobacco plants....Pages 251-252
Effect of induced resistance mechanisms in potato and tomato plants on the Colorado potato beetle....Pages 253-254
Influence of phenolic compounds on the relationship between the cassava mealybug and its host plants....Pages 255-257
Measurements of host-plant resistance in Chrysanthemum to Frankliniella occidentalis ....Pages 258-260
An automatic and accurate evaluation of thrips-damage. Image-Analysis: a new tool in breeding for resistance....Pages 261-262
Susceptibility of Chrysanthemum cultivars to thrips ( Frankliniella occidentalis ) infestation and the role of some physical plant characters....Pages 263-264
Front Matter....Pages 219-219
Effects of resistance in cucumber upon life-history components of Frankliniella occidentalis ....Pages 265-266
The impact of environmental conditions on survival of the leaf miner Liriomyza trifolii on Chrysanthemum cultivars....Pages 267-270
Selection for resistance to insects causing ramification in Salix viminalis plantations....Pages 271-272
Development of tolerance to plant allelochemicals by the Colorado potato beetle....Pages 273-274
The use of restriction fragment length polymorphism analysis for identifying biotypes of the virus vector aphid Amphorophora idaei ....Pages 275-276
Biochemical adaptations of cereal aphids to host plants....Pages 277-279
Criteria for host-plant acceptance by aphids....Pages 280-282
Ultrastructure and electrical recording of sieve element punctures by aphid stylets....Pages 283-285
The behaviour of Nasonovia ribisnigri on resistant and susceptible lettuce lines....Pages 286-288
Aphid pectinases, cell wall fragments, and biotype evolution....Pages 289-290
Resistance of lettuce to the leaf aphid Macrosiphum euphorbiae ....Pages 291-292
Expression of resistance in lettuce (Lactuca sativa) to Macrosiphum euphorbiae based on a monogenic factor....Pages 293-294
Feeding behaviour of the aphid Sitobion avenae on resistant and susceptible wheat....Pages 295-296
Russian wheat aphid and drought stresses in wheat: tritrophic interactions with Diaeretiella rapae and plant resistance....Pages 297-298
Performance of pea aphid clones in relation to amino acid composition of phloem sap and artificial diets....Pages 299-300
Effect of certain proteins on Acyrthosiphon pisum growth and development. Potential influence on aphid-plant interactions....Pages 301-303
The influence of some non-protein amino acids on winter wheat resistance to the grain aphid....Pages 304-306
Presence of hydroxamic acids in the honeydew of aphids feeding on wheat seedlings, and its significance for plant resistance and virus transmission....Pages 307-308
Changes in phenolic compounds in cucumber leaves infested by the two-spotted spider mite ( Tetranychus urticae )....Pages 309-310
Effects of spider mite infestation on biochemical characteristics of different gerbera cultivars....Pages 311-312
Front Matter....Pages 219-219
Pleiotropic effects of genes in glossy Brassica oleracea resistant to Brevicoryne brassicae ....Pages 313-315
The role of brassica leaf surface chemicals in antixenotic resistance to Delia floralis ....Pages 316-318
Resistance to insects in glossy genetic lines of cole crops ( Brassica oleracea )....Pages 319-320
Breeding potato for resistance to insect pests....Pages 321-322
Modelling the impact of cotton fruiting phenology on pink bollworm population dynamics in Egypt....Pages 323-324
The susceptibility of maize to Prostephanus truncatus infestation: development of a bioassay....Pages 325-325
Front Matter....Pages 327-327
Microbial brokers of insect-plant interactions....Pages 329-336
Microorganisms and kairomone production from Allium chemicals in a host-parasitoid relationship....Pages 337-338
Plant resistance versus parasitoid attack in the evolution of the gall-forming fly Lipara lucens ....Pages 339-340
Genetic relationships between Oreina species with different defensive strategies....Pages 341-342
Effect of host plants on growth and defence in two Phratora (Coleoptera: Chrysomelidae) species....Pages 343-344
Effects of early season foliar damage on Phratora polaris (Chrysomelidae) and its defensive ability....Pages 345-346
Simulated acid rain and the susceptibility of the European pine sawfly ( Neodiprion sertifer ) larvae to nuclear polyhedrosis virus....Pages 347-348
Identification of cereal aphid parasitoids by epicuticular lipid analysis....Pages 349-350
Do plants reduce herbivore attack by providing pollen?....Pages 351-352
How cassava plants enhance the efficacy of their phytoseiid bodyguards....Pages 353-354
Infochemicals that mediate plant-carnivore communication systemically induced by herbivory....Pages 355-356
Mite herbivory causes better protection in downwind uninfested plants....Pages 357-358
Parasitoids foraging for leaf damage: do they see beyond the end of their antennae?....Pages 359-360
Do plants manipulate the third trophic level?....Pages 361-362
Front Matter....Pages 327-327
The role of plant cues in mediating host and food searching behavior of parasitoids: importance to biological control....Pages 363-364
Systemic releases of volatiles by herbivore-damaged plants: what possible functions?....Pages 365-366
Natural enemy impact varies with host plant genotype....Pages 367-369
Front Matter....Pages 371-371
Chemistry of insect-plant interactions....Pages 373-381
Insect behaviour....Pages 383-387
Variability in insect-plant interactions....Pages 389-393
Specialization in herbivorous insects....Pages 395-399
Front Matter....Pages 401-401
Impressions of the symposium, thoughts for the future....Pages 403-407
Back Matter....Pages 409-424